1.Infertilitas feminis caused by salpingemphraxis: therapeutic alliances of oviduct recanalization and video-laparoscope
Xinxue DAI ; Xuemei FAN ; Tianwu CHEN ; Chaofeng REN ; Dan ZHOU ; Haiyan YOU
Chinese Journal of Radiology 2010;44(2):194-197
Objective To explore the clinical value of therapeutic alliances of oviduct recanalization and video-laparoscope in the treatment of infertilitas feminis caused by multiple salpingemphraxis. Methods Sixty-seven patients with salpingemphraxis in 127 oviducts complicated with adhesions in fimbriated extremities were enrolled into our study. All the patients underwent separation of adherences in fimbriated extremities and neostomy using a video-laparoscope 2 to 3 days after selective oviduct recanalization. The therapeutic effects were retrospectively reviewed focusing on recanalization rate of proximal three segments, complete recanalization rate, and pregnancy rate and relevant complications during the follow-up period were analyzed. And patients with infertilitas feminis in the follow-up period underwent repeated salpingography to determine whether oviduct was repeatedly obstructed. Results The therapeutic alliance of oviduct recanalization and video-laparoscope were performed successfully in this cohort. Owing to the treatment of oviduct recanalization, recanalization rate of proximal three segments was 97.6% oviducts (124/127). Due to the alliance of oviduct recanalization and video-laparoscope, complete rate of oviduct were 98.4% (122/124). One year after operation, the pregnancy rate, ectopic pregnancy rate, and non pregnancy rate were 58.2% (39/67), 4.5% (3/67), and 37.3% (25/67), respectively. The patients with non pregnancy were composed by repeated oviduct obstruction in 25.4% (17/67) and non obstruction in 11.9% (8/67). Conclusion Therapeutic alliances of oviduct recanalization and video-laparoscope could be an effective method for the treatment of infertilitas feminis caused by multiple salpingemphraxis, and be helpful for the enhancement of pregnancy rate.
2.An efficient method which can be used to transfect Tibetan minipig embryonic fibroblasts
Wei LIU ; Yan CHEN ; Min YUE ; Jin YUAN ; Tianwu QIU ; Dong XIAO ; Weiwang GU
Chinese Journal of Comparative Medicine 2015;(3):64-66
Objective To transfect EGFP gene to porcine embryonic fibroblasts ( PEFs) of Tibetan miniature pigs by Lonza Nucleofector II machine and compare the tansfection efficiency between this method and the lipofection method. Method A plasmid carrying green fluorescent protein ( GFP) was transfected into PEFs of Tibetan miniature pigs via the Lonza Nucleofector II machine ( program U020) and by Lipofectamine 2000.Results 5 hours after nucleofection, green fluorescence was observed, indicating 80%transfecting efficiency in the nucleofection group, which is significantly higher than the lipofection group. Conclusion Nucleofector II machine can efficiently transfect PEFs, provides a reliable method for efficiently generate transgenic Tibetan minipigs.
3.Features of tumor perfusion of gastric cancer with 64-MDCT: a pilot study.
Jin YAO ; Zhigang YANG ; Yuan YUAN ; Jiayu SUN ; Tianwu CHEN
Journal of Biomedical Engineering 2010;27(4):774-778
This is a prospective study using first-pass perfusion CT with volume-based technique to investigate perfusion features of gastric cancer. Perfusion CT was performed with 64-section MDCT on 35 patients with gastric cancer; these patients were subdivided into three subgroups according to the location of the tumor; besides, 24 patients with normal stomach served as controls. Four perfusion parameters, including perfusion (PF), peak enhancement (PE), time to peak (TTP), and blood volume (BV), were obtained and compared between the test and control groups, and between the groups with and without lymph-node metastases. ROC analysis was performed to determine the cutoff value for discriminating the microcirculation of gastric cancer from that of the normal stomach. The results showed that blood volume was significantly increased in the test group, compared with the control group. The threshold of 8.6 ml x 100 g(-1) of blood volume was noted to be corresponding to a sensitivity of 88.6% and a specificity of 62.9%. In conclusion, the first-pass perfusion CT with whole tumor acquisition technique could assess tumor vascularity and be useful for the diagnosis of gastric cancer.
Adult
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Aged
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Female
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Humans
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Lymphatic Metastasis
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Male
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Middle Aged
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Perfusion
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methods
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Prospective Studies
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Radiographic Image Interpretation, Computer-Assisted
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methods
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Regional Blood Flow
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Sensitivity and Specificity
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Stomach Neoplasms
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blood supply
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diagnostic imaging
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Tomography, Spiral Computed
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methods
4.Research status quo of perfusion imaging with multidetector row computed tomography on esophageal cancer.
Tianwu CHEN ; Zhihui DONG ; Zhigang YANG
Journal of Biomedical Engineering 2011;28(1):179-183
Esophageal cancer is one of frequent malignant tumors worldwide. As a noninvasive technique, computed tomography (CT) perfusion imaging could be valuable to assess the microcirculation of esophageal cancer in vivo. Recently, multidetector row CT (MDCT) perfusion imaging has sparked new interest in the assessment of the microcirculation of esophageal cancer, and therapeutic effects of chemoradiotherapy on this tumor. In this paper, we reviewed the status quo of perfusion imaging with MDCT on esophageal cancer.
Esophageal Neoplasms
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blood supply
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diagnostic imaging
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Humans
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Models, Theoretical
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Multidetector Computed Tomography
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methods
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Perfusion Imaging
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methods
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Regional Blood Flow
5.Portal venography with 64-slice MDCT in evaluation of the anatomic distribution of compensatory circulation resulting from posthepatitic cirrhosis.
Qiling WANG ; Tianwu CHEN ; Zhigang YANG ; Xiao LI ; Lingling QIAN
Journal of Biomedical Engineering 2010;27(3):511-515
This study sought to determine the value of portal venography with 64-slice MDCT in the evaluation of compensatory circulation resulting from decompensated posthepatitic cirrhosis (PHC), and in the clarification of its anatomic distribution. Thirty-six patients with clinically confirmed compensatory circulations resulting from PHC were enrolled in this study. They underwent thoracicoabdominal triphasic enhancement CT scans with 64-slice MDCT. The data of the portal venous phase acquired were used for obtaining CT-MIP (maximum intensity projection) images of portosystematic collaterals such as gastric fundic and esophageal varices, paraumbilical veins, spleno-renal shunts, and their inflowing and outflowing vessels. On CT-MIP portography, gastric fundic varices were shown in 35 cases (97%) and esophageal varices in 30 cases (83%). The left gastric vein was the common inflowing vessel of the varices in 34 cases (94%); it was mainly originated from splenic vein in 24 cases (67%). With regard to the outflowing vessels, they were commonly azygos vein in 30 cases (83%). As for paraumbilical veins in 7 cases (19%), the inflowing vessel was the left branch of portal vein, and the outflowing vesse was the superficial epigastric vein. Cavernous transformation of the portal vein was seen in 5 cases (14%) and cavernous transformation of splenic vein was seen in 16 cases (44%). CT-MIP venography with 64-row MDCT could be considered as an effective and noninvasive method for detecting the compensatory circulation resulting from decompensated PHC.
Adult
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Aged
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Aged, 80 and over
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Collateral Circulation
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Esophageal and Gastric Varices
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diagnostic imaging
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epidemiology
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Female
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Hepatitis B
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complications
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Humans
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Liver Cirrhosis
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diagnostic imaging
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etiology
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physiopathology
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Male
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Middle Aged
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Portal Vein
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diagnostic imaging
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pathology
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Portography
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methods
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Tomography, Spiral Computed
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methods
6.Analysis of the difference between the appearance and the bony structure in the polysyndactyly of the fifth toe fused with the fourth toe.
Zuochen DU ; Xiaofei TIAN ; Lin QIU ; Yuexian FU ; Yan LIN ; Xingang YUAN ; Jun XIAO ; Tianwu LI ; Wei CHEN
Chinese Journal of Plastic Surgery 2015;31(2):102-106
OBJECTIVETo investigate difference between the appearance and the bony structure in the polysyndactyly of the fifth toe fused with the fourth toe.
METHODSFrom Jan. 2009 to Jan. 2014, 54 patients (65 feet) with polysyndactyly of the fifth toe fused with the fourth toe were treated. The appearance, X-ray and intraoperative finding were recorded and compared to classify the deformity. Then the extra toe was excised and syndactyly was separated. The malalignment and brachydactyly of the sixth toes were corrected simultaneously.
RESULTSAccording to the bone and joint type, the fifth toes were neoplastic toes without joints in 17 feet, or had poor bony and joint alignment with the sixth toes in 48 feet. So the fifth toes were excised in all the cases. The patients were followed up for 1 month to 4 years. The oblique deformity of sixth toes were corrected completely with improved length.
CONCLUSIONSThe polysyndactyly of the fifth toe fused with the fourth toe should be classified to design the excised toe (usually fifth toe) and correction procedure. The appearance and bony joint recovery are both important.
Humans ; Polydactyly ; pathology ; surgery ; Syndactyly ; pathology ; surgery ; Toe Phalanges ; abnormalities ; surgery ; Toes ; abnormalities ; surgery
7.Assessment of plantar arch index and prevalence of flat feet in 3 226 school-age children in Shanghai
ZHONG Yuting, LYU Jingyi, CHEN Tianwu, JIANG Fangyi, CHEN Jun, CHEN Shiyi
Chinese Journal of School Health 2020;41(9):1358-1361
Objective:
To assess plantar arch index (AI) and prevalence of flat feet in school-age children (7-12 years old) in Shanghai and evaluate the relationship between flat feet with age, gender, weight status (BMI) and occurring sides, and to provide a reference for the prevention of flatfeet.
Methods:
Three-dimensional foot measuring instruments were used to measure bilateral foot length, medial arch height, AI and arch height ratio (AHR) in school-age children in Shanghai. Statistical analysis of these foot parameters was performed.
Results:
A total of 3 226 children between aged 7 and 12 in Shanghai were measured with AI of (0.27±0.05) and AHR of (3.02±1.89). Prevalence of flat feet in the group of 7 to 12 year old children was 56.1%. Prevalence of flatfeet decreased significantly with age: 72.6% at 7 years old and 37.9% at 12 years old. Boys had a significantly greater risk for flat feet than girls: the prevalence of flat feet was 62.9% for boys and 47.8% for girls (OR=1.81, 95%CI=1.57-2.10). This risk was independent of age but related to gender. The risk of flat feet in boys was always higher than that in girls at every age. For children aged 7-8, being overweight was not significantly related to the occurrence of flat feet. However, for children aged 9-12 who were overweight were more likely to have flat feet than those of normal weight. The OR increased with age: from 1.44 (95%CI=1.03-2.03) at 9 to 2.96 (95%CI=1.68-5.23) at 12. There was no difference on which side flat feet would occur (χ2=0.95,P=0.33).
Conclusion
This finding shows that prevalence of flat feet is influenced by age, gender and weight status. AI and prevalence of flat feet in children aged 7-12 decreases with age, and boys have significantly higher prevalence of flat feet than girls. Overweight children aged 9 or older have a higher risk of flat feet.
8.Impact of Chronic Lateral Ankle Instability with Lateral Collateral Ligament Injuries on Biochemical Alterations in the Cartilage of the Subtalar and Midtarsal Joints Based on MRI T2 Mapping
Hongyue TAO ; Yiwen HU ; Rong LU ; Yuyang ZHANG ; Yuxue XIE ; Tianwu CHEN ; Shuang CHEN
Korean Journal of Radiology 2021;22(3):384-394
Objective:
To quantitatively assess biochemical alterations in the cartilage of the subtalar and midtarsal joints in chronic lateral ankle instability (CLAI) patients with isolated anterior talofibular ligament (ATFL) injuries and combined calcaneofibular ligament (CFL) injuries using MRI T2 mapping.
Materials and Methods:
This study was performed according to regulations of the Committee for Human Research at our institution, and written informed consent was obtained from all participants. Forty CLAI patients (26 with isolated ATFL injuries and 14 with combined ATFL and CFL injuries) and 25 healthy subjects were recruited for this study. All participants underwent MRI scans with T2 mapping. Patients were assessed with the American Orthopedic Foot and Ankle Society (AOFAS) rating system. The subtalar and midtarsal joints were segmented into 14 cartilage subregions. The T2 value of each subregion was measured from T2 mapping images. Data were analyzed with ANOVA, the Student’s t test, and Pearson’s correlation coefficient.
Results:
T2 values of most subregions of the subtalar joint and the calcaneal facet of the calcaneocuboid joint in CLAI patients with combined CFL injuries were higher than those in healthy controls (all p < 0.05). However, there were no significant differences in T2 values in subtalar and midtarsal joints between patients with isolated ATFL injuries and healthy controls (all p > 0.05). Moreover, T2 values of the medial talar subregions of the posterior subtalar joint in patients with combined CFL injuries showed negative correlations with the AOFAS scores (r = -0.687, p = 0.007; r = -0.609, p = 0.021, respectively).
Conclusion
CLAI with combined CFL injuries can lead to cartilage degeneration in subtalar and calcaneocuboid joints, while an isolated ATFL injury might not have a significant impact on the cartilage in these joints.
9.Characteristics of pneumoconiosis on multi-detector row CT and its' anatomic-pathologic basis.
Yuanchun FENG ; Zhigang YANG ; Yuan LI ; Tianwu CHEN ; Qiling WANG ; Wen DENG
Journal of Biomedical Engineering 2011;28(2):287-291
In order to investigate the fine distinction of the tomographic images and the dominant anatomic distributions, we carefully reviewed and analyzed the features and predominant anatomic distribution of forty-nine pneumoconiosis patients with confirmed diagnosis on multi-detector row CT (MDCT). It was found that the round and small opacity p and irregular small opacity were mostly shown in the MDCT features of pneumoconiosis, while the large opacity and progressive massive fibrosis (PMF) were less frequently depicted in the MDCT. Distributions of round and small opacity and irregular small opacity in the six lung lobes were significantly different (P < 0.01). The most common p opacity was significantly seen in the upper and lower left lungs as well as in the upper right lung's opacity was in the upper left lung as well as lower left and right lungs. The large opacity commonly distributed in upper left and right lungs, while the PMF was often shown in both of two lungs. The results demonstrated that the MDCT could be an effective modality for detecting tiny lesions and anatomic distribution of pneumoconiosis, and it would be helpful for early diagnosis and accurate staging of the pneumoconiosis disease.
Adult
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Aged
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Early Diagnosis
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Female
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Humans
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Lung
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diagnostic imaging
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pathology
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Male
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Middle Aged
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Multidetector Computed Tomography
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methods
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Pneumoconiosis
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diagnostic imaging
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pathology
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Silicosis
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diagnostic imaging
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pathology
10.Embolotherapy for the management of lung cancer with massive hemoptysis.
Chaohua WANG ; Xiaodong XIE ; Zejun FEI ; Ge WU ; Fumin ZHAO ; Tianwu CHEN
Chinese Journal of Lung Cancer 2003;6(4):311-312
BACKGROUNDTo investigate the indication, complication and efficacy of bronchial artery embolization for the management of lung cancer with massive hemoptysis.
METHODSThirty-eight cases of lung cancer with massive hemoptysis were retrospectively analyzed in our hospital from January 1996 to January 2003. All cases presented with acute hemoptysis from 220 to 980 ml daily, with a mean of 290 ml daily. A digital subtracted bronchial arteriogram was perfomed and bleeding arteries were embolized.
RESULTSHemoptysis decreased gradually in all cases and ceased in 3 or 4 days after embolization. Recurrence was found only in one case 2 months after embolization and second embolization was applied to control hemoptysis. No serious complications occured.
CONCLUSIONSBronchial artery embolization is safe and efficient for the management of lung cancer with massive hemoptysis.