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Objective To evaluate the clinical value of transarterial catheterization C-arm CT perfusion scanning technique during prostatic artery embolization(PAE)for benign prostatic hyperplasia(BPH).Methods The clinical data of 46 patients with BPH received PAE were analyzed retrospectively.All patients underwent prostatic artery(PA)digital subtraction angiography(DSA)and C-arm CT perfusion scanning to identify PA and prevent non-target organ embolization.The final recognization of PA was consulted by three senior doctors.After C-arm CT confirmation,PA was embolized with 100-300 μm polyvinyl alcohol(PVA)particles or microspheres under fluoroscopy.The postoperative complications and 3-month clinical efficacy were observed.Results A total of 106 vessels were angioraphed in 46 patients,with 83 PA vessels and 23 non-PA vessels.PA was identified by DSA and C-arm CT with sensitivity of 81.9%(68/83)and 100%(83/83),respectively,which showed significance(χ2=22.3,P<0.01).Non-PA was identified by DSA and C-arm CT with specificity of 73.9%(17/23)and 100%(23/23),which showed significance(χ2=9.2,P=0.02).No serious complications were observed and 3-month clincial efficacy was 91.3%.Conclusion Transarterial catheterization C-arm CT perfusion scanning technique can accurately identify PA,reduce PA leakage and prevent non-target organ embolization.
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Objective To evaluate the efficacy of microwave ablation(MWA)synchronously with biopsy for pulmonary nodules.Methods The data of 64 patients with MWA combined with biopsy were analyzed retrospectively.Thirty-one patients(non-synchronous group)were treated with ablation following biopsy in turn to identify malignant tumors,and 33 patients(synchronous group)were treated by ablation and biopsy synchronously.The technical success rate,operation time,complications,hospitalization time and expenses were compared between non-synchronous group and synchronous group.Results The technical success rate,pneumothorax,and pleural effusion rate showed no significance between the two groups(P>0.05).There were all significant differences in operation time(42.00 min vs 54.26 min),hospitalization time(5.09 days vs 9.26 days),hospitalization expenses(26 840.61 yuan vs 32 527.26 yuan),lung hemorrhage(27.27%vs 87.10%)and hemoptysis(3.03%vs 19.35%)between synchronous group and non-synchronous group,respectively(P<0.05).Conclusion MWA synchronously with biopsy for pulmonary nodules is safe and feasible,which can reduce intraoperative bleeding,shorten treatment period and reduce hospitalization expenses.
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Objective:To evaluate the fluoroscopy-guided percutaneous transhepatic forceps biopsy (PTFB) in the diagnosis of biliary strictures.Methods:Literatures on diagnosis of biliary strictures by PTFB published from January 2001 to August 2022 were obtained by searching the databases of PubMed, Embase, Web of Science, the Cochrane Library, China National Knowledge Infrastructure (CKNI), Wanfang, VIP, and China Biology Medicine disc (CBM). Literature inclusion and exclusion criteria were established and the retrieved literature was screened. The quality of the included literature was evaluated using the quality assessment of diagnostic accuracy studies (QUADAS-2). Statistical analysis was performed by using Meta-disc software and Stata software.Results:Eighteen articles involving 1 935 patients were finally included. The heterogeneity test suggested no threshold effect, but there was non-threshold heterogeneity in sensitivity and negative likelihood ratio due to other reasons, so a random-effects model was used, and a fixed-effects model were used for the remaining outcome indexes used due to low heterogeneity. The results showed that the pooled sensitivity of fluoroscopy-guided PTFB for the diagnosis of biliary strictures was 0.796 (95% CI: 0.776-0.814), the pooled specificity was 1.000 (95% CI: 0.985-1.000), the pooled positive likelihood ratio was 21.532 (95% CI: 11.281-41.098), the pooled negative likelihood ratio was 0.234(95% CI: 0.169-0.323), the pooled diagnostic odds ratio was 94.321(95% CI: 46.744-190.320), and the area under the summary receiver operating characteristic curve was 0.929. The pooled complication rate was 9.2% (95% CI: 6.4%-12.0%). Conclusion:Fluoroscopy-guided PTFB may be a superior diagnostic tool for biliary strictures.