1.Survey on natural language processing in medical image analysis.
Zhengliang LIU ; Mengshen HE ; Zuowei JIANG ; Zihao WU ; Haixing DAI ; Lian ZHANG ; Siyi LUO ; Tianle HAN ; Xiang LI ; Xi JIANG ; Dajiang ZHU ; Xiaoyan CAI ; Bao GE ; Wei LIU ; Jun LIU ; Dinggang SHEN ; Tianming LIU
Journal of Central South University(Medical Sciences) 2022;47(8):981-993
Recent advancement in natural language processing (NLP) and medical imaging empowers the wide applicability of deep learning models. These developments have increased not only data understanding, but also knowledge of state-of-the-art architectures and their real-world potentials. Medical imaging researchers have recognized the limitations of only targeting images, as well as the importance of integrating multimodal inputs into medical image analysis. The lack of comprehensive surveys of the current literature, however, impedes the progress of this domain. Existing research perspectives, as well as the architectures, tasks, datasets, and performance measures examined in the present literature, are reviewed in this work, and we also provide a brief description of possible future directions in the field, aiming to provide researchers and healthcare professionals with a detailed summary of existing academic research and to provide rational insights to facilitate future research.
Humans
;
Natural Language Processing
;
Surveys and Questionnaires
2.A multicenter retrospective study of immunotherapy for metastatic renal cell carcinoma
Haixing MAI ; Yu ZHANG ; Xin MA ; Liangyou GU ; Zhiqiang CHEN ; Wen DONG ; Wei GUAN ; Wei ZHAI ; Long WANG ; Wei XUE ; Lijun CHEN ; Shaogang WANG ; Jian HUANG ; Xu ZHANG
Chinese Journal of Urology 2022;43(5):368-373
Objective:To evaluate the efficacy and side effects of PD-1 monoclonal antibody in the treatment of advanced metastatic renal cell carcinoma in China.Methods:The clinical data of 117 patients with advanced metastatic renal cell carcinoma (mRCC) treated with PD-1 monoclonal antibody from October 2016 to February 2022 were retrospectively analyzed. There were 87 males (74.4%) and 30 females (25.6%), with an average age of (57.9±10.9) years old, BMI of (23.6±3.4) kg/m 2and smoking history of 79 (67.5%). There were 44 cases (37.6%) with hypertension, 19 (16.2%) cases of diabetes. The ECOG score of 59.8% (70/117) patients was 0, 33.3% (39/117) was 1, 4.3% (5/117) was 2, and 2.5% (3/117) was 3. The pathological type of 104 cases were renal clear cell carcinoma (ccRCC), 8 cases of papillary renal cell carcinoma, 2 cases of chromophobe cell carcinoma, 2 cases of collecting duct carcinoma and 1 case of eosinophilic cell carcinoma. The general condition of the overall population and the overall survival (OS) of relevant subgroups were analyzed. Secondary goals included progression free survival (PFS), objective response rate (ORR), adverse reactions, overall survival (OS), and progression free survival (PFS). Results:65.8% (77 / 117) of the patients chose targeted combined with PD-1 monoclonal antibody in the first-line treatment. The main targeted drugs were acitinib (81.8%, 63 / 77), tirelizumab (37.6%, 29 / 77) and cindilimab (25.9%, 20 / 77). After first-line treatment, 19.6.1% (23 / 117) patients needed to be converted to second-line treatment, and 15 patients changed the type of PD-1 antibody during treatment. In addition, the targeted drug of combined therapy was replaced by acitinib in 8 patients. The main causes of drug withdrawal were disease progression (70.7%, 29 / 41) and death (29.2%, 12 / 41). The median OS of the overall population was 35.6 (19-60) months and PFS was 12.1 (1-60) months. The ORR of the overall population was 47.8% (56 / 117). 4.2% (5/117) patients had complete remission, another 17.0% (20/117) patients were in stable condition, and 43.5% (51 / 117) patients were in partial remission. In the first-line treatment, the median PFS time of targeted combined with PD-1 monoclonal antibody was 12.6 (1-30) months, the median PFS time of PD-1 single drug immunotherapy was 10.5 (1-60) months. In the second-line treatment, the PFS of patients treated with PD-1 monoclonal antibody was 10.1 (4-19) months, and that of patients treated with PD-1 monoclonal antibody combined with targeted therapy was 11.7 (1-25) months. The most common adverse reactions were elevated blood pressure (18.5%, 23 / 124), followed by hypothyroidism (15.3%%, 19/124), rash (14.5%, 18 / 124), elevated transaminase (10.5%, 13 / 124) and bone marrow suppression (9.7%, 12/124). 9.4% (11 / 117) patients needed to reduce the related adverse reactions by interrupting the treatment control of PD-1 monoclonal antibody.Conclusions:The safety and efficacy of PD-1 monoclonal antibody in domestic patients are better, and the side effects are less. The efficacy and safety of PD-1 monoclonal antibody combined with targeted therapy in the real world population are consistent with many key clinical trials abroad. PD-1 monoclonal antibody combined with targeted drugs can be popularized in the domestic MRCC population.
3.Puncture positioning versus free-of-puncture positioning under three-dimensional navigation in the anatomical segmentectomy for pulmonary nodules: A retrospective cohort study
Shuo HU ; Qi WANG ; Haixing WEI ; Xianglong PAN ; Zhicheng HE ; Jing XU ; Yining ZHU ; Weibing WU ; Liang CHEN
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2021;28(10):1202-1206
Objective To explore the feasibility and clinical value of free-of-puncture positioning in three-dimension-guided anatomical segmentectomy for ground-glass nodule (GGN) compared with percutaneous positioning. Methods Clinical data of 268 enrolled patients undergoing anatomical pulmonary segmentectomy from October 2018 to June 2019 were retrospectively collected, including 75 males and 193 females with an average age of 56.55±12.10 years. The patients were divided into two groups, including a percutaneous positioning group (n=89) and a free-of-puncture positioning group (n=179). Perioperative data of the two groups were compared. Results The average CT scan times of the percutaneous positioning group was 3.01±0.98 times, and the numerical rating scale (NRS) score of puncture pain was 3.98±1.61 points. Pulmonary compression pneumothorax (≥30%) occurred in 7 (7.87%) patients and intercostal vascular hemorrhage occurred in 8 (8.99%) patients after puncture. Lung nodules were successfully found and removed in both groups. There was no statistically significant difference between the two groups in the location of nodules (P=0.466), operation time (151.83±39.23 min vs. 154.35±33.19 min, P=0.585), margin width (2.07±0.35 cm vs. 1.98±0.28 cm, P=0.750), or the number of excised subsegments (2.83±1.13 vs. 2.73±1.16, P=0.530). Conclusion Anatomical segmentectomy with three-dimensional navigation avoids the adverse consequences of puncture, which has the same clinical efficacy and meets the requirements of oncology compared with percutaneous positioning. The free-of-puncture positioning method can be used for GGN located in the central region of pulmonary segment/subsegment or adjacent to intersegment veins instead of percutaneous positioning.
4.Effect of stellate ganglion block on nighttime sleep quality in patient with primary sleep disorder
Yanqing CHEN ; Liangcheng QIU ; Shichao WEI ; Xiaodan WU ; Yu CHEN ; Haixing WU ; Yongjun SU
Chinese Journal of Anesthesiology 2020;40(1):74-77
Objective:To evaluate the effect of stellate ganglion block on nighttime sleep quality in the patients with primary sleep disorders.Methods:Sixty patients of both sexes with primary sleep disorders, of American Society of Anesthesiology physical status Ⅰ or Ⅱ, aged 18-64 yr, weighing 40-75 kg, were randomized to 2 groups ( n=30 each): control group (group C) and stellate ganglion block group (group S). In group S, 0.2% ropivacaine 5 ml was injected into the surface of the right longus colli muscle where the the stellate ganglion was located under ultrasound guidance once a day for 7 consecutive days starting from 1 h before bedtime.While the equal volume of normal saline was given instead in group C. Patients′ Subjective Sleep Quality was assessed using the Pittsburgh Sleep Quality Index Questionnaire before treatment (T 0) and 1-7 days after treatment.The objective sleep quality was evaluated with polysomnography.A bispectral index(BIS)monitor and a cerebral and regional blood oxygen monitoring system were used to monitor the BIS value and regional cerebral oxygen saturation (rSO 2) during sleep, which were recorded once every 30 min, and the 7-day average was calculated.The patients′ daytime advanced cognitive function was assessed for 3 consecutive days after the end of treatment (T 8-10), including the Continuous Attention Test and the Behavioral Test for Performing Defect Syndrome, and the 3-day average value was calculated.Venous blood samples were collected at T 0 and T 8 to measure the plasma noradrenaline, cortisol, and serotonin concentrations by high-performance liquid chromatography. Results:Compared with group C, the individual and total scores of Pittsburgh Sleep Quality Index were significantly decreased, the sleep latency, awakening time and fast wave sleep latency were shortened, the number of awakening was increased, the total sleep time was prolonged, the sleep efficiency and proportion of fast wave sleep were increased, S 1-S 2 ratio in slow-wave sleep was decreased, S 3-S 4 ratio was increased, BIS value was decreased, rSO 2 was increased, each parameter of Continuous Attention Test was decreased and each parameter of Behavioral Test for Performing Defect Syndrome was increased after treatment, and plasma noradrenaline level was decreased at T 8 in group S ( P<0.05). Conclusion:Stellate ganglion block can improve nighttime sleep quality in patients with primary sleep disorders.
5.Assessment of the Accuracy of Modified Inflation-deflation Methods for Distinguishing the Intersegmental Border.
Haixing WEI ; Yining ZHU ; Qi WANG ; Liang CHEN ; Weibing WU
Chinese Journal of Lung Cancer 2020;23(6):526-531
BACKGROUND:
For early-stage lung cancer, segmentectomy can get the same oncological benefits as lobectomy. Accurate identification of the intersegmental border is the key to segmentectomy. This study used extended segmentectomy and extended subsegmentectomy to treat lung intersegmental and intersubsegmental ground-glass nodules (GGN) by utilizing modified inflation-deflation methods to distinguish the intersegmental and intersubsegmental borders. The accuracy of modified inflation-deflation methods and the effectiveness of extended resection to guarantee a safe surgical margin were evaluated.
METHODS:
A retrospective analysis of 83 cases of extended segmentectomy and extended subsegmentectomy was conducted. Preoperative three-dimensional computed tomography bronchography and angiography (3D-CTBA) revealed that nodules were involved in intersegmental or intersubsegmental veins. Based on preoperative three-dimensional reconstruction, the surgery was designed to extendedly remove the dominant lung segment or subsegment with nodules involved. When the dominant lung segment or subsegment could not be identified, the simpler lung segment or subsegment was selected for the resection. After the target vessel and bronchus were cut off during the operation, modified inflation-deflation method was used to determine the border, and a stapler was used to resect the adjacent lung segment or subsegment tissue by 2 cm-3 cm around the inflation-deflation boundary line. Then, the relationship between the inflation-deflation boundary line and the nodule and the width of the surgical margin were measured. Clinical data were collected during the perioperative period.
RESULTS:
56 extended segmentectomies and 27 extended subsegmentectomies were performed. The average diameter of pulmonary nodules was (0.9±0.3) cm. There were 79 cases with clearly inflation-deflation boundary lines. The average time needed for the appearance of the lines was (13.6±6.5) min. In 55 cases, the nodules were involved with the inflation-deflation boundary lines. Meanwhile, the remaining 24 cases revealed an average minimum distance of (0.6±0.3) cm between nodules and the boundary lines. The average width of surgical margin was (2.1±0.3) cm in these 79 cases. No deaths or major complications appeared during 30 d after operation.
CONCLUSIONS
The modified inflation-deflation method can effectively define the intersegmental and intersubsegmental borders, and guarantee the safe surgical margins of extended segmentectomy and extended subsegmentectomy to treat intersegmental and intersubsegmental small lung tumors.
6.Diagnostic value of narrow-band imaging combined with endoscopic ultrasonography for ampullary tumors
Shuo TANG ; Shanyu QIN ; Haixing JIANG ; Wei LUO ; Donghong LU ; Lin TAO ; Hongjian NING ; Sibiao SU
Chinese Journal of Digestive Endoscopy 2019;36(2):108-112
Objective To study the diagnostic value of narrow-band imaging ( NBI) combined with endoscopic ultrasonography ( EUS) for ampullary tumors. Methods A total of 21 patients suspected with ampullary lesions by imaging or endoscopic examination from December 2015 to March 2017 were enrolled in this prospective study. All patients underwent NBI and EUS, and 20 patients underwent biopsy. The type of ampullary tumor was predicted by preoperative examination, and appropriate treatment methods were chosen. The final diagnosis was confirmed by biopsy, surgical pathology, and clinical follow-up for more than 6 months. The accuracy of NBI combined with EUS and biopsy in diagnosis of ampullary malignant tumors was calculated according to the gold standard. The Chi-square test was used to compare diagnostic accuracies. Results The sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of NBI combined with EUS in diagnosis of ampullary malignancies were 94. 1% (16/17), 100. 0% (4/4), 95. 2% (20/21), 100. 0% (16/16), and 80. 0% (4/5), respectively. The corresponding indicators of preoperative biopsy were 41. 2% ( 7/17) , 100. 0% ( 3/3) , 50. 0% ( 10/20) , 100. 0% ( 7/7) , and 23. 1%( 3/13) , respectively. The accuracy of NBI combined with EUS in diagnosing ampullary malignant tumor was significantly higher compared with preoperative biopsy ( P=0. 004) . Conclusion NBI combined with EUS can more accurately predict benign or malignant ampullary tumor, and better guide the choice of surgical methods compared with preoperative biopsy.
7.Ginsenoside Rh2 induced human colorectal cancer cell apoptosis through PI3K/AKT/GSK-3βpathway
Xueping SHI ; Jing LI ; Jianhua RAN ; Wei XIONG ; Haixing LI ; Pei GUO ; Dilong CHEN
Chinese Pharmacological Bulletin 2017;33(1):114-119
Aim To investigate the effect of Ginsen-oside Rh2 on apoptosis in human colorectal cancer cell SW480,and to explore the possible mechanism of it. Methods The proliferation activity of SW480 treated with Ginsenoside Rh2 was measured CCK-8 assay.Ap-optosis rates were evaluated by FCM.Hoechst 33258 staining was used to observe cell nucleus morphologi-cal;change SW480 cells were treated with Ginsenoside Rh2,and the protein expressions of Bcl-2,Bax,p53, cleaved caspase-3 ,PI3 K,AKT,P-AKT,GSK-3β,P-GSK-3βwere detected by Western blot;SW480 cells were treated with LY294002,Rh2,LY294002+Rh2, the expressions of PI3 K,AKT,P-AKT,GSK-3β,P-GSK-3βwere detected by Western blot.Results The proliferation of SW480 cells was significantly inhibited by Ginsenoside Rh2 in dose-dependent and time-de-pendent manner.FCM showed the inducing apoptosis effect of Ginsenoside Rh2 was significantly different from that of control group.Hoechst 33258 staining in-dicated clearly cell apoptosis in Ginsenoside Rh2 treat-ment groups.Western blot showed Ginsenoside Rh2 decreased expression of Bcl-2,increased expression of Bax,p53 and cleaved caspase-3,PI3K/AKT/GSK-3βpathway proteins PI3 K,P-AKT,P-GSK-3βdecreased obviously,AKT and GSK-3βwere not changed signifi-cantly in SW480.SW480 cells were separately treated with LY294002,Rh2,LY294002 +Rh2,there were no significant difference in AKT and GSK-3βprotein a-mong all groups,and the expression of PI3 K,P-AKT, P-GSK-3βdecreased more obviously in LY294002 +Rh2 group compared with LY294002 and Rh2 alone. Conclusion Rh2 induces colorectal cancer cell apop-tosis through PI3 K/AKT/GSK-3βpathway,which ac-tivates p53 and cleaved caspase-3,and destroys the balance of Bcl-2/Bax.
8.Evaluation of intestinal wall thickness measurement with endoscopic ultrasonography for Crohn disease activity
Hongxuan CHEN ; Shanyu QIN ; Haixing JIANG ; Wei LUO ; Hongjian NING ; Donghong LU ; Lin TAO ; Sibiao SU
Chinese Journal of Digestive Endoscopy 2017;34(6):400-404
Objective To evaluate measurement of the submucosal thickness with endoscopic ultrasonography (EUS) for activity of Crohn disease (CD).Methods Ten patients with active stage of CD and 10 healthy controls (HC) underwent EUS.Simple endoscopic score for Crohn disease(SES-CD)and submucosal thickness at the most severe lesions were measured and recorded.Submucosal thickness of the same region in CD patients were measured at remissive stage.In order to analyze the relationship between submucosal thickness and the stage of CD, submucosal thickness were compared among patients at active stage of CD, remissive stage of CD and HC.And the cut-off value of submucosal thickness was calculated to diagnose the stage of CD.Results The mean submucosal thicknesses of active stage and remissive stage of CD were 6.48±1.95 mm and 2.47±1.08 mm,respectively (P<0.01).The correlation analysis showed that submucosal thickness had a positive correlation with Crohn disease activity index(CDAI)(r=0.708,P<0.01) and SES-CD(r=0.807,P<0.01).Receiver operating characteristic curve analysis was used for 10 cases of CD patients and the area under the curve was 0.985(P<0.01).The cut-off value of submucosal thickness to diagnose active stage of CD was 3.85 mm, and the sensitivity and specificity reached 100% and 90% respectively.The Youden index was 0.9.Conclusion Measurement of gastrointestinal submucosal thickness by EUS could contribute to evaluate the stage of CD and to guide clinical treatment.
9.Establishment and application of external quality assessment system for microbial morphology and detection of special drug-resistance in clinical laboratory
Lianhua WEI ; Fengmei ZOU ; Gang LIU ; Yongqing YANG ; Wanxia WANG ; Ling WU ; Junchun LI ; Xin WANG ; Yuqian CHEN ; Xiaoqing CHEN ; Keke LI ; Haixing SHAO ; Jichao ZHU
Chinese Journal of Clinical Laboratory Science 2017;35(7):538-541
Objective To investigate the establishment,operation and performance of external quality assessment(EQA) system for microbial morphology and detection of special drug-resistance in clinical laboratory,and explore the value of the developed system in clinical application.Methods The pictures of known bacteria and fungi colony,gram staining and acid-fast staining from clinical microbiology were distributed to the participating laboratories in Gansu province twice a year at regular intervals.The pictures of standard knowledge points from CLSI,such as special drug resistance were distributed simultaneously.All the participating laboratories were required to complete the interpretation for the pictures and report their resuhs in a scheduled time.Then the resuhs were summarized and analyzed as 3 modes:complete consistency,general consistency and non-consistency.Results During the 2 years when the EQA system for microbial morphology and detection of special drug-resistance were performed for 24 times,the rate of annual complete consistency increased year by year and reached to 91.3% in 2015.Conclusion The EQA system based on the examinations of microbial morphology and CLSI standard knowledge points for clinical laboratory may supervise the staff of clinical microbiology laboratories in the hospitals at second grade or above to master the skills of morphological identification and learn CLSI knowledge points,so their professional skills of clinical microbiology could be comprehensively improved.
10.Diagnostic value of contrast-enhanced ultrasound endoscopy forupper gastrointestinal tract and adjacent lesions
Wei DENG ; Haixing JIANG ; Shanyu QIN
Chongqing Medicine 2017;46(14):1933-1937
Objective To investigate the diagnostic value of contrast-enhanced ultrasound endoscopy(CE-EUS) for the upper gastrointestinal tract and adjacent lesions.Methods One hundred and eighty samples of upper gastrointestinal tract and adjacent lesions in the First Affiliated Hospital of Guangxi Medical University from June 2014 to March 2015 were collected and performed CE-EUS.The preliminary diagnosis was taken by observing the features of various kinds of solid mass,which was conducted the contrastive analysis with the results of fine needle aspiration cytology(EUS-FNA) and (or) histopathology, biliary brush cytology smear results,operative pathologic findings,and CT,MRI scans and follow-up results.Results In 180 cases of gastrointestinal tract and adjacent placeholder,169 cases of CE-EUS were in line with the final results,while 11 cases were not consistent,and the diagnostic consistency rate was 93.9%.Conclusion CE-EUS can guide EUS-FNA puncture for increasing its positive rate..


Result Analysis
Print
Save
E-mail