ObjectiveTo analyze the clinical manifestations and pathological patterns of renal diseases requiring percutaneous renopuncture, evaluate the clinical significance of renal biopsy and the value of clinical pathway for renal biopsy. MethodsWe retrospectively summarized and analyzed the clinical and pathological data, and the clinical pathway implementation of 224 patients who underwent renal biopsy between October 2009 and September 2014. ResultsIn the 224 patients, there were 62 cases of IgA nephropathy (27.68%), 50 cases of minimal change nephropathy (22.32%), 28 cases of lupus nephritis (12.5%), 26 cases of membrane nephropathy (11.6%), 26 cases of mesangial proliferative glomerulonephritis (11.6%), 6 cases of purpura nephritis (2.68%), 4 cases of focal segmental glomerular sclerosis (1.79%), 4 cases of hepatitis B virus-associated membrane nephropathy (1.79%), 4 cases of nodular diabetic glomerulosclerosis (1.79%), 4 cases of acute tubulointerstitial nephropathy (1.79%), 2 cases of hypertensive renal damage (0.89%), 2 cases of membrano-proliferative glomerulonephritis (0.89%), 1 case of lipoprotein kidney disease (0.45%), and 1 case of fibrillary glomerulopathy (0.45%). A total of 220 specimens in the 224 cases were qualified, accounting for 98.21%. Diagnosis of 70 patients in the qualified 220 cases were re-corrected according to their renal pathology reports, accounting for 31.81%. In the 224 cases, there were 16 cases of gross hematuria (7.14%) and 24 of peri-renal hematoma (10.71%) after renal biopsy. Patients who met the requirement of clinical pathway were divided into clinical pathway group and control group randomly. Average hospitalization time of the clinical pathway group was (7.6±1.2) days, and the average cost was (5 860±237) yuan, both lower than the control group [(11.8±2.3) days, (7 658±360) yuan)]. The difference was statistically significant. ConclusionsIgA nephropathy is the most common pathological type of primary glomerular diseases, and minimal change nephropathy the second. Lupus nephritis, membranous nephropathy, mesangial proliferative glomerulonephritis are still the most common types of glomerular diseases. Lupus nephritis becomes the first secondary glomerular disease. Ultrasound guided percutaneous renal biopsy is safe and has high success rate and high clinical application value. The implementation of clinical pathway can shorten the average length of hospital stay and reduce the average hospital cost.
Objective To discuss venous drainage types of median hepatic lobe and their guiding significances on the selection of grafts. Methods Between April 2005 and March 2009, 109 potential living donors underwent 3-dimensional reconstruction of computed tomography (CT) and the volume of graft was determined in the center of organ transplantation of Ruijin Hospital. The venous drainage types of median hepatic lobe of each donor were analyzed by the computer-based liver operation-planning system in detail to assign middle hepatic vein (MHV) types according to Marcos classification and venous types of Ⅳb segment according to Nakamura classification. Results The branching pattern of MHV was divided into 3 types: Type Ⅰ and Ⅱwere relatively more accounting for 44.0% （48/109）, 37.6% （41/109）, and type Ⅲ was fewest 〔18.3% （20/109）〕. There were no significant differences in volume of whole liver, volume of left liver or left liver/total liver volume ratio among various types of MHV of the donor (Pgt;0.05). Ⅳb vein was also divided into 3 types: The most common was type Ⅰ, accounting for 72.4% (79/109); Type Ⅱ 〔12.8% （14/109）〕, type Ⅲ 〔14.7% （16/109）〕 were relatively fewer. At last, 37 donors provided right liver, for Marcos Ⅰ, Ⅱ, and Ⅲ type of donors, donors remained with MHV was 12/17, 8/11, and 5/9; for Nakamura Ⅰ, Ⅱ, and Ⅲ type of donors, those number were 16/26, 4/6, and 5/5. Conclusion In adult-to-adult living donor liver transplantation, there may be great significances in accordance with Marcos and Nakamura typing results to harvest right lobe liver graft with or without MHV.
ObjectiveTo assess the effect of short-axis and long-axis punctures of thyroid nodules on the diagnostic rate of ultrasound guided aspiration biopsy (US-FNAB). MethodsWe retrospectively analyzed the clinical data of 2 686 thyroid nodule patients who underwent US-FNAB between March 2011 and November 2014. The US-FNAB was performed by 5 beginners (571 each for Dr1-Dr4 and 402 for Dr5). Yields of US-FNAB were divided into two levels according to the classification standard of the Bethesda system:adequacy and inadequacy. Short-axis puncture technique was used by Dr2 and long-axis puncture was performed by the others. According to chronological sequence of thyroid nodules examined, we compared the inadequate diagnostic rate between Dr2 and the others for the first 200 cases and the last 200 cases, respectively. The inadequate diagnostic rate was compared among the 4 doctors who used long-axis punctures for the first 200 cases and the last 200 cases, respectively. ResultsThe inadequacy rate of US-FNAB for Dr2 was higher than that for Dr1, Dr3, Dr4 and Dr5 in the first 200 cases, with statistical significance (P=0.036,<0.001,=0.007 and <0.001, respectively). There was no significant difference in inadequate diagnostic rate among the 4 doctors who used long-axis punctures for the first 200 cases (P=0.033, 0.551, 0.011, 0.122, 0.672 and 0.050). The inadequacy rate of US-FNAB for Dr2 was higher than that for Dr5 and lower than that for Dr4 in the last 200 cases with statistical significance (P=0.027 and 0.003, respectively). The inadequacy rate of US-FNAB for Dr5 was lower than that for Dr3 (P=0.005) and Dr4 (P<0.001) among the 4 doctors who used long-axis punctures for the last 200 cases. ConclusionFor beginners, the inadequacy rate of short-axis puncture is higher than long-axis puncture. We suggest beginners learn long-axis puncture method. There is no significant difference in inadequate diagnostic rate among short-axis and long-axis punctures, when the number of operated cases reaches 200. At this point, the operator can choose either way to puncture according to the disease condition or personal interests.
Quantitative susceptibility mapping (QSM) can provide tissue susceptibility information and has been adapted for clinical research and diagnosis. QSM of monkey brain in vivo at 9.4 T has not been demonstrated so far. In this study 9.4 T in vivo monkey brain QSM was performed with 200 μm isotropic high-resolution. It was found that the inherent singularity problem for QSM diverged significantly at ultra-high image resolution during regularization process and resulted in severe image artifacts. The K-space division (TKD) was applied to eliminate the artifacts, with an optimal threshold level between 0.2 and 0.3. High resolution QSM of monkey brain in vivo can thus provide a novel tool for brain research.
ObjectiveTo investigate the radiological appearances of postoperative complications after living donor liver transplantation for patients with hepatocellular carcinoma under multi-detector row spiral computed tomography (MDCT) and magnetic resonance imaging (MRI) examination. MethodsThirty-nine imaging data in 20 patients with hepatocellular carcinoma after living donor liver transplantation from January 2008 to June 2010 in the West China Hospital were included and analyzed by two radiologists respectively. The relations between the types of complications and radiological appearances were especially recorded. ResultsAll the cases experienced complications to different extent. Common surgical complications occured in 20 cases, including pertitoneal fluid collection (14 cases), pneumoperitoneum (2 cases), swelling of peritoneum, omentum, and mesentery (1 case), abdominal wall swelling (2 cases), pleural effusion (9 cases), and pericardial fluid collection (2 cases). Hepatic vascular complications involved hepatic artery in 3 cases, portal vein in 5 cases. Biliary complications presented in 7 cases, including anastomotic stenosis of biliary duct (6 cases) and bile leak (1 case). Graft parenchymal complications included intrahepatic lymph retention (11 cases), infarction (3 cases), and infection (2 cases). Intrahepatic recurrence in 5 cases, intraperitoneal metastasis in 3 csses and pulmonary metastasis in 2 cases. ConclusionMDCT and MRI have important diagnostic values for postoperative complications after living donor liver transplantation for patients with hepatocellular carcinoma.
Objective To observe the growth of orthotopic transplanted tumor in nude mice after stomatin-like protein 2 (SLP-2) expression decreased, and to further study the role of SLP-2 in the development and progression of esophageal squamous cell carcinoma. Methods Using RNA interference technique, esophageal squamous cell carcinoma cell lines with specific expression of SLP-2 and stable expression of luciferase were established. The healthy female nude mice with weight ranging from 19 to 22 g were randomly divided into 3 groups (n=12), 6 mice were used to establish subcutaneous xenografts, and the other 6 mice were used to establish the orthotopic transplanted tumor model (Group 1: cell infected with SLP-2-1 plasmid; group 2: cell infected with SLP-2-2 plasmid; group 3: cell infected with SHGFP plasmid). Index of the experiment end was weight loss and poor general situation in any mouse. Before the nude mice were sacrificed, the luciferase value of the tumor was detected by using in vivo imaging technique. After the nude mice were sacrificed, the primary tumor was removed for pathology examination. Results There was no significant difference in region of interest (ROI) value between the group 1 and group 2 (P=0.943). The ROI value for both groups 1 and 2 was significantly lower than that in the group 3 (P=0.002, P=0.000). The primary tumor infiltrated into the muscularis propria of esophageal was observed in all groups. Conclusion SLP-2 is involved in the development and progression of esophageal squamous cell carcinoma, and the decrease of SLP-2 expression can inhibit the growth of esophageal squamous cell carcinoma.
ObjectiveTo explore the consistency between core needle biopsy (CNB) by color ultrasound location and surgical biopsy in the diagnosis of breast diseases. MethodsBetween March 2012 and March 2015, the results of ultrasound-guided CNB pathological examination of 218 cases of breast diseases were retrospectively analyzed, which were compared with the results of postoperative histopathological diagnosis to evaluate the ultrasound-guided CNB diagnosis. ResultsIn the 218 cases, 156 of mammary cancer were confirmed by CNB histopathological diagnosis, and 160 were confirmed by the postoperative pathological histological diagnosis; the false negative diagnosis by CNB pathological diagnosis was 4. The two methods were highly matched with each other (k=0.958,P<0.001). The sensitivity of CNB histopathological diagnosis for mammary cancer was 97.5%, while the specificity was 100.0% and the accuracy rate was 98.2%. ConclusionCNB histopathologic diagnosis of breast lesions had high accuracy and high consistency with postoperative histopathological diagnosis results, which is a reliable biopsy method for breast lesions.