1.China guideline for diagnosis and comprehensive treatment of colorectal liver metastases (version 2023).
Chinese Journal of Gastrointestinal Surgery 2023;26(1):1-15
		                        		
		                        			
		                        			The liver is the main target organ for hematogenous metastases of colorectal cancer, and colorectal liver metastasis is one of the most difficult and challenging situations in the treatment of colorectal cancer. In order to improve the diagnosis and comprehensive treatment of colorectal liver metastasis in China, the guidelines have been edited and revised for several times since 2008, including the overall evaluation, personalized treatment goals and comprehensive treatments, to prevent the occurrence of liver metastases, increase the local damage rate of liver metastases, prolong long-term survival, and improve quality of life. The revised guideline version 2023 includes the diagnosis and follow-up, prevention, multidisciplinary team (MDT), surgery and local ablative treatment, neoadjuvant and adjuvant therapy, and comprehensive treatment, with state-of-the-art experience and findings, detailed content, and strong operability.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Colorectal Neoplasms/pathology*
		                        			;
		                        		
		                        			Quality of Life
		                        			;
		                        		
		                        			Liver Neoplasms/secondary*
		                        			;
		                        		
		                        			China/epidemiology*
		                        			
		                        		
		                        	
2.Ultrasonographic features and clinical pathological of liver metastasis in patients with melanoma.
Yi Xing FENG ; Sheng ZHANG ; Xi WEI
Chinese Journal of Oncology 2022;44(4):354-359
		                        		
		                        			
		                        			Objective: To investigate the ultrasonographic features and clinical pathological of liver metastasis in patients with melanoma. Methods: Thirteen patients with liver metastasis from melanoma treated in Tianjin Medical University Cancer Institute and Hospital from 2013 to 2019 were selected, and their ultrasonographic and clinicopathological characteristics were analyzed retrospectively. Results: Eleven of the 13 patients had multiple liver lesions. The maximum diameter of the lesions was (5.89±2.73) cm. Five cases of lesions were mixed echo (3 cases with high melanin content), 4 cases of lesions were hyperechoic (3 cases with low melanin content), 3 cases of lesions were hypoechoic (all with high melanin content), 1 case of lesions were equal echo (with high melanin content). The lesions in 11 patients had clear boundaries, while other 2 patients lacked the clear borders. Cystic areas were present in the lesions of 3 patients. Six cases had irregular lesions (lobulated), and 7 cases had regular lesions (round, oval). There were acoustic halos around the lesion in 9 cases and smooth and uneven acoustic halos in 5 cases. The results of immunohistochemistry showed that 11 cases were positive for S-100, HMB45 and Melan-A. One patient was not tested for HMB45, while S-100 and Melan-A were positive. One patient did not undergo Melan-A test, while S-100 and HMB45 were positive. Conclusion: Most of the liver metastases of melanoma are mixed echo or hyperechoic, most of them are nodular with clear boundaries combined with vocal halo, and a few of the lesions have cystic areas.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver Neoplasms/secondary*
		                        			;
		                        		
		                        			MART-1 Antigen
		                        			;
		                        		
		                        			Melanins
		                        			;
		                        		
		                        			Melanoma/pathology*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
3.Comparison of follow-up treatment regimens for colorectal cancer liver metastases without objective response to neoadjuvant chemotherapy: direct surgery or surgery after second-line chemotherapy.
Xue Yan LYU ; Xin Yu BI ; Hong ZHAO ; Qi Chen CHEN ; Zhi Wen LUO ; Bo Lun ZHANG ; Xiao Shi ZHANG ; Jian Qiang CAI
Chinese Journal of Surgery 2022;60(5):454-460
		                        		
		                        			
		                        			Objective: To compare the effect of direct surgery or surgery after second-line chemotherapy for colorectal cancer patients with liver metastases who did not achieve objective remission after neoadjuvant chemotherapy. Methods: A retrospective case cohort study was used. The clinical and pathological data of 107 patients with colorectal cancer liver metastases who did not achieve objective response to neoadjuvant chemotherapy at Department of Hepatobiliary Surgery,Cancer Hospital,Chinese Academy of Medical Sciences from December 2008 to December 2016 were retrospectively collected. There were 71 males and 36 females, median age was 57 years (range: 28 to 79 years). According to the different treatment regimens after neoadjuvant chemotherapy,107 cases were divided into a direct surgery group (direct group,n=65) and an operation after receiving second-line chemotherapy group (second-line group,n=42). The propensity score matching(PSM) of the Logistic regression model was used to match the bilobar distribution of liver metastases and the number of first-line chemotherapy cycles in the two groups of patients. The caliper value was set to 0.10 and the matching ratio was 1∶2. T test, Mann-Whitney U test, χ2 test or Fisher's exat test was used to analyzed the data between the tuo groups, respectively. Survival analysis design was used to investigate the difference in prognosis between the two groups of patients. Results: The follow-up time(M(IQR)) was 56.3(34.3) months (range: 2.1 to 95.0 months),and all patients were followed up. After PSM,there were 28 cases in the direct group and 42 cases in the second-line group, there were no significant differences in whether R0 resection was feasible,blood loss,blood transfusion,postoperative complications and postoperative hospital stay between the two groups (all P>0.05). The 1,3,and 5-year progression-free survival(PFS) rates of the direct group were 40.0%,16.5%,and 11.0%,and the 1,3,and 5-year overall survival(OS) rates were 98.5%,61.2%,and 41.4%,respectively, the second-line group 1,3,5 years PFS rates were 35.7%,14.3%,14.3%,1,3,5-year OS rate were 95.2%,55.1%,44.4%,respectively. The median PFS time of the direct group and the second-line group was 8.5 months and 7.5 months,respectively,and the difference was not statistically significant (P=0.826). The median OS time of the direct group and the second-line group were 33.8 months and 46.9 months,respectively. The difference was not statistically significant(P=0.646).The median PFS time of the direct group and second-line chemotherapy complete remission and partial remission group(CR/PR group) was 10.2 months and 9.1 months,respectively,and the difference was not statistically significant(P=0.669). The median OS time of the direct group and the second-line CR/PR group was 51.0 months and 46.9 months,respectively,and the difference was not statistically significant(P=0.427). The results of survival analysis suggested that major liver resection was an independent prognosis factor for PFS (HR=1.809,95%CI: 1.067 to 3.067,P=0.028) and OS(HR=2.751,95%CI: 1.317 to 5.747,P=0.007). Second-line chemotherapy was not an independent prognostic factor for PFS (HR=0.945, 95%CI:0.570 to 1.567,P=0.828) and OS (HR=0.866,95%CI: 0.468 to 1.602,P=0.646). Conclusions: There is no significant difference in the short-term outcome and long-term prognosis between direct surgery patients and second-line chemotherapy followed by surgery. Second-line chemotherapy is not an independent prognostic factor for colorectal cancer liver metastases patients who fail to achieve objective response after neoadjuvant chemotherapy.
		                        		
		                        		
		                        		
		                        			Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
		                        			;
		                        		
		                        			Cohort Studies
		                        			;
		                        		
		                        			Colorectal Neoplasms/pathology*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver Neoplasms/secondary*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Neoadjuvant Therapy
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
4.Comparison of the Survival Time in the Non-small Cell Lung Cancer Patients with Different Organ Metastasis.
Bingqun WU ; Shenhai WEI ; Jintao TIAN ; Xiaoping SONG ; Pengcheng HU ; Yong CUI
Chinese Journal of Lung Cancer 2019;22(2):105-110
		                        		
		                        			BACKGROUND:
		                        			The purpose of this study is to compare the survival time of non-small cell lung cancer (NSCLC) patients with different organ metastasis. Among all cancers, the morbidity and mortality of lung cancer is the highest worldwide, which may caused by local recurrence and distant metastasis, and the location of metastasis may predict the prognosis of patients.
		                        		
		                        			METHODS:
		                        			A total of 117,542 patients with NSCLC diagnosed between 2010 and 2014 were enrolled from Surveillance, Epidemiology, and End Result (SEER) databases, and the relationship between distant metastasis and survival time was retrospectively analyzed.
		                        		
		                        			RESULTS:
		                        			Of all the 117,542 patients diagnosed with non-small cell lung cancer, 42,071 (35.8%) patients had different degrees of distant metastasis during their medical history, including 26,932 single organ metastases and 15,139 multiple organ metastases, accounting for 64.0% and 36.0% of the metastatic patients respectively. Compared with patients with no metastasis, whose median survival time was 21 months, the median survival time of patients with metastases was 7 months (lung), 6 months (brain), 5 months (bone), 4 months (liver), and 3 months (multiple organ) respectively, and the difference was significant (P<0.001, except liver vs multiple organ P=0.650); Most patients with NSCLC (88.4%) eventually died of lung cancer.
		                        		
		                        			CONCLUSIONS
		                        			Distant metastasis of NSCLC patients indicates poor prognosis. In NSCLC patients with single organ metastasis, the prognosis of lung metastasis is the best, and liver metastasis is the worst, and multiple organ metastasis is worse than single organ metastasis.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Bone Neoplasms
		                        			;
		                        		
		                        			mortality
		                        			;
		                        		
		                        			secondary
		                        			;
		                        		
		                        			Brain Neoplasms
		                        			;
		                        		
		                        			mortality
		                        			;
		                        		
		                        			secondary
		                        			;
		                        		
		                        			Carcinoma, Non-Small-Cell Lung
		                        			;
		                        		
		                        			mortality
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver Neoplasms
		                        			;
		                        		
		                        			mortality
		                        			;
		                        		
		                        			secondary
		                        			;
		                        		
		                        			Lung Neoplasms
		                        			;
		                        		
		                        			mortality
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Neoplasm Metastasis
		                        			;
		                        		
		                        			Neoplasm Staging
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
5.Prognostic factors of patients with unresectable liver metastasis from colorectal cancer after failed conversion chemotherapy.
Hailan HE ; Wei SHEN ; Wei CHEN ; Huanhuan LIU ; Wei GONG ; Jihong FU ; Xuguang HU ; Long CUI
Chinese Journal of Gastrointestinal Surgery 2018;21(11):1261-1267
		                        		
		                        			OBJECTIVE:
		                        			To explore the prognostic factors of patients with unresectable liver metastasis colorectal cancer after failed conversion chemotherapy.
		                        		
		                        			METHODS:
		                        			A retrospective, case-controlled study was performed. Study subjects were 105 patients who were diagnosed with synchronous liver metastasis colorectal cancer after failed chemotherapy (metastasis evaluated as unresectable after the conversion chemotherapy) at Xinhua Hospital, Shanghai Jiaotong University from January 2012 to December 2015. Overall survival(OS) was retrospectively analyzed using Kaplan-Meier method. Log-rank test was used to compare survival among groups. Univariate and multivariate analysis was conducted for prognosis using Cox regression model.
		                        		
		                        			RESULTS:
		                        			Of 105 cases,70 were male and 35 were female with median age of 60 years old. Twenty-one patients had right colon cancer, 41 had left colon cancer, 42 had rectal cancer and 1 had synchronous cancers(sigmoid colon and rectum). One hundred and two (97.1%) patients were cT3-4 and 90 patients were cN+ (imaging diagnosis). Eighty-nine (84.8%) patients were loaded with 2 or more liver metastases with the median maximum diameter of 48.3 mm. The patients were followed up for 3 to 43 months from the day of diagnosis. The median OS was 11 months (interquartile range, 8-18). The median OS of patients with cN0, cN1 and cN2 stage was 17, 13 and 10 months, respectively(P=0.026). The median OS of patients with single lesion, 2-3 lesions, 4-10 lesions and more than 10 lesions was 15, 15, 17 and 9 months, respectively (P=0.002). OS of patients with maximum diameter of liver metastatic lesion ≤ 50 mm, 51-100 mm and >100 mm was 15, 10 and 8 months, respectively(P=0.003). The median OS of patients with chemotherapy response of partial response (PR), stable disease (SD) and progressive disease (PD) was 17, 14 and 8 months, respectively(P<0.001). OS was 17 months in patients receiving second line chemotherapy and was 10 months in those without second line chemotherapy (P<0.001). OS in patients undergoing primary tumor resection was 13 month and in those without primary tumor resection was 9 months; the difference was not significant (P=0.060). Multivariate analysis showed that cN2(HR=2.115, 95%CI:1.089-4.109, P=0.027), the maximum diameter of liver metastatic lesion more than 100 mm (HR=3.112, 95%CI:1.455-6.657, P=0.003), chemotherapy response of PD (HR=4.435, 95%CI:2.506-7.533,P<0.001) and without second line chemotherapy(HR=4.432,95%CI:2.186-8.986, P=0.010) were independent prognostic factors.
		                        		
		                        			CONCLUSIONS
		                        			For patients with unresectable liver metastasis from colorectal cancer after failed conversion chemotherapy, prognostic factors include cN2, the maximum diameter of liver metastatic lesion, chemotherapy response and second line chemotherapy. Whether the resection of primary tumor can prolong OS further study.
		                        		
		                        		
		                        		
		                        			Antineoplastic Agents
		                        			;
		                        		
		                        			therapeutic use
		                        			;
		                        		
		                        			China
		                        			;
		                        		
		                        			Colorectal Neoplasms
		                        			;
		                        		
		                        			drug therapy
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver Neoplasms
		                        			;
		                        		
		                        			diagnosis
		                        			;
		                        		
		                        			secondary
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Treatment Failure
		                        			
		                        		
		                        	
6.Expression of miR-454-3p and its effect on proliferation, invasion and metastasis of colon cancer.
Wenhua LI ; Yun FENG ; Zhenzeng MA ; Lungen LU
Journal of Southern Medical University 2018;38(12):1421-1426
		                        		
		                        			OBJECTIVE:
		                        			To study the expression of miR-454-3p in colon cancer and its effect on colon cancer proliferation, invasion and hepatic metastasis.
		                        		
		                        			METHODS:
		                        			Specimens of tumor tissues and paired adjacent tissues were collected from 20 patients with colorectal cancer for detecting the expression levels of miR-454-3p using in situ hybridization. Colon cancer cell line SW480 was transfected with a lentiviral vector to induce miR-454-3p over-expression, and the changes in cell proliferation and invasion were observed using cell counting kit-8 (CCK-8), clone formation assay and Transwell experiment. The effect of miR- 454-3p over-expression on hepatic metastasis of colon cancer was assessed in BALB/c mouse models.
		                        		
		                        			RESULTS:
		                        			The results of in situ hybridization showed a significantly increased expression level of miR-454-3p in colon cancer tissues as compared with normal colon tissues ( < 0.05). In SW480 cells, over-expression of miR-454-3p significantly promoted the cell proliferation and invasion ( < 0.05). In BALB/c mice, SW480 cells over-expressing miR-454-3p showed a significantly higher potential for liver metastases than the control cells ( < 0.05).
		                        		
		                        			CONCLUSIONS
		                        			miR-454-3p is overexpressed in the tumor tissues in patients with colorectal cancer and participates in the progression of colorectal cancer by promoting cancer cell proliferation, invasion, and liver metastasis. miR-454-3p may serve as a novel biomarker for colorectal cancer diagnosis and prognostic evaluation.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Biomarkers, Tumor
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Cell Line, Tumor
		                        			;
		                        		
		                        			Cell Movement
		                        			;
		                        		
		                        			Cell Proliferation
		                        			;
		                        		
		                        			Colon
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Colonic Neoplasms
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Disease Progression
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver Neoplasms
		                        			;
		                        		
		                        			secondary
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Mice, Inbred BALB C
		                        			;
		                        		
		                        			MicroRNAs
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Neoplasm Invasiveness
		                        			;
		                        		
		                        			Sincalide
		                        			;
		                        		
		                        			metabolism
		                        			
		                        		
		                        	
7.External validation and newly development of a nomogram to predict overall survival of abiraterone-treated, castration-resistant patients with metastatic prostate cancer.
Yun-Jie YANG ; Guo-Wen LIN ; Gao-Xiang LI ; Bo DAI ; Ding-Wei YE ; Jun-Long WU ; Hu-Yang XIE ; Yao ZHU
Asian Journal of Andrology 2018;20(2):184-188
		                        		
		                        			
		                        			Abiraterone acetate is approved for the treatment of castration-resistant prostate cancer (CRPC); however, its effects vary. An accurate prediction model to identify patient groups that will benefit from abiraterone treatment is therefore urgently required. The Chi model exhibits a good profile for risk classification, although its utility for the chemotherapy-naive group is unclear. This study aimed to externally validate the Chi model and develop a new nomogram to predict overall survival (OS). We retrospectively analyzed a cohort of 110 patients. Patients were distributed among good-, intermediate-, and poor-risk groups, according to the Chi model. The good-, intermediate-, and poor-risk groups had a sample size of 59 (53.6%), 34 (30.9%), and 17 (15.5%) in our dataset, and a median OS of 48.4, 29.1, and 10.5 months, respectively. The C-index of external validation of Chi model was 0.726. Univariate and multivariate analyses identified low hemoglobin concentrations (<110 g l-1), liver metastasis, and a short time interval from androgen deprivation therapy to abiraterone initiation (<36 months) as predictors of OS. Accordingly, a new nomogram was developed with a C-index equal to 0.757 (95% CI, 0.678-0.836). In conclusion, the Chi model predicted the prognosis of abiraterone-treated, chemotherapy-naive patients with mCRPC, and we developed a new nomogram to predict the overall survival of this group of patients with less parameters.
		                        		
		                        		
		                        		
		                        			Abiraterone Acetate/therapeutic use*
		                        			;
		                        		
		                        			Adenocarcinoma/secondary*
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Alkaline Phosphatase/blood*
		                        			;
		                        		
		                        			Androgen Antagonists/therapeutic use*
		                        			;
		                        		
		                        			Antineoplastic Agents/therapeutic use*
		                        			;
		                        		
		                        			Bone Neoplasms/secondary*
		                        			;
		                        		
		                        			Cohort Studies
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Kaplan-Meier Estimate
		                        			;
		                        		
		                        			L-Lactate Dehydrogenase/blood*
		                        			;
		                        		
		                        			Liver Neoplasms/secondary*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Multivariate Analysis
		                        			;
		                        		
		                        			Neoplasm Metastasis
		                        			;
		                        		
		                        			Nomograms
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Proportional Hazards Models
		                        			;
		                        		
		                        			Prostatic Neoplasms, Castration-Resistant/pathology*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Serum Albumin/metabolism*
		                        			;
		                        		
		                        			Survival Rate
		                        			;
		                        		
		                        			Time Factors
		                        			
		                        		
		                        	
8.Home care with acupuncture increased the quality of life in a patient with advanced cancer with neuropathic pain induced by bone metastasis: a case report.
Journal of Integrative Medicine 2018;16(3):208-210
		                        		
		                        			
		                        			A 66-year-old female patient was diagnosed with hepatocellular carcinoma accompanied by neuropathic pain induced by a metastatic tumor that compromised root and spinal canal. Although her pain was relieved following medical treatment, breakthrough pain occurring 1-2 times a day was still distressing. Neuropathic pain in her right lower limb caused discomfort and irritability and decreased her quality of life. We had limited options to adjust her prescription drug regime, due to the side effect of these drugs. Although acupuncture therapy was only performed at her home once a week, the efficacy was outstanding. The patient did not report any further instances of breakthrough pain, and she did not require additional bolus morphine. She could comfortably live in her familiar surroundings with her family and did not require any emergency room visits or admission into the hospital during the last month of her life. She had excellent quality of life in the terminal period of her life, and could even participate in a family function during this time. The present case report suggests that acupuncture may have a role in treating neuropathic pain induced by bone metastasis in patients with advanced cancer across clinical and in-home settings.
		                        		
		                        		
		                        		
		                        			Acupuncture Therapy
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Bone Neoplasms
		                        			;
		                        		
		                        			complications
		                        			;
		                        		
		                        			secondary
		                        			;
		                        		
		                        			Carcinoma, Hepatocellular
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Home Care Services
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver Neoplasms
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Neoplasms
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Neuralgia
		                        			;
		                        		
		                        			etiology
		                        			;
		                        		
		                        			therapy
		                        			;
		                        		
		                        			Quality of Life
		                        			
		                        		
		                        	
9.China Guideline for Diagnosis and Comprehensive Treatment of Colorectal Liver Metastases (Version 2018).
Chinese Journal of Gastrointestinal Surgery 2018;21(6):601-626
		                        		
		                        			
		                        			The liver is the most common anatomical site for hematogenous metastases of colorectal cancer, and colorectal liver metastases is one of the most difficult and challenging points in the treatment of colorectal cancer. In order to improve the diagnosis and comprehensive treatment in China, the Guidelines have been edited and revised for several times since 2008, including the overall evaluation, personalized treatment goals and comprehensive treatments, to prevent the occurrence of liver metastases, improve the resection rate of liver metastases and survival. The revised Guideline includes the diagnosis and follow-up, prevention, MDT effect, surgery and local ablative treatment, neoadjuvant and adjuvant therapy, and comprehensive treatment, and with advanced experience, latest results, detailed content, and strong operability.
		                        		
		                        		
		                        		
		                        			Chemotherapy, Adjuvant
		                        			;
		                        		
		                        			China
		                        			;
		                        		
		                        			Colorectal Neoplasms
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			Hepatectomy
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver Neoplasms
		                        			;
		                        		
		                        			diagnosis
		                        			;
		                        		
		                        			secondary
		                        			;
		                        		
		                        			therapy
		                        			;
		                        		
		                        			Neoadjuvant Therapy
		                        			;
		                        		
		                        			Practice Guidelines as Topic
		                        			
		                        		
		                        	
10.Evaluation of Liver Metastases Using Contrast-Enhanced Ultrasound: Enhancement Patterns and Influencing Factors.
Wen Tao KONG ; Zheng Biao JI ; Wen Ping WANG ; Hao CAI ; Bei Jian HUANG ; Hong DING
Gut and Liver 2016;10(2):283-287
		                        		
		                        			
		                        			BACKGROUND/AIMS: To evaluate the enhancement patterns of liver metastases and their influencing factors using dynamic contrast-enhanced ultrasound (CEUS). METHODS: A total of 240 patients (139 male and 101 female; 58.5±11.2 years of age) diagnosed with liver metastases in our hospital were enrolled in this study to evaluate tumor characteristics using CEUS. A comparison of enhancement patterns with tumor size and primary tumor type was performed using the chi-square test. The differences between quantitative variables were evaluated with the independent-sample t-test and one-way analysis of variance. RESULTS: The enhancement patterns of liver metastases on CEUS were categorized as diffuse homogeneous hyperenhancement (133/240, 55.4%), rim-like hyperenhancement (80/240, 33.3%), heterogeneous hyperenhancement (10/240, 4.2%), and isoenhancement (17/240, 7.1%). There were significant differences in the enhancement patterns during the arterial phase based on the nodule size (p=0.001). A total of 231 of the nodules showed complete washout during the portal phase, and 237 nodules were hypoenhanced during the delayed phase. The washout time was correlated with tumor vascularity, with a longer washout time observed in hypervascular metastases compared to hypovascular metastases (p=0.033). CONCLUSIONS: Diffuse homogeneous hyperenhancement followed by rapid washout was the most common enhancement pattern of liver metastases on CEUS and was affected by the nodule size and tumor vascularity. Small metastases were prone to show diffuse homogeneous hyperenhancement. Hyper-vascular metastases showed a significantly longer washout time compared to hypovascular metastases.
		                        		
		                        		
		                        		
		                        			Adolescent
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Contrast Media/*therapeutic use
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Liver/diagnostic imaging/pathology
		                        			;
		                        		
		                        			Liver Neoplasms/blood supply/*diagnostic imaging/secondary
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Neovascularization, Pathologic/diagnostic imaging
		                        			;
		                        		
		                        			Ultrasonography/*methods
		                        			;
		                        		
		                        			Young Adult
		                        			
		                        		
		                        	
            
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