Objective To retrospectively determine the features of stones and calcifications in hepatobiliary system on virtual nonenhanced (VNE) dual-energy computed tomography (CT), and to evaluate the possibility of VNE images...Objective To retrospectively determine the features of stones and calcifications in hepatobiliary system on virtual nonenhanced (VNE) dual-energy computed tomography (CT), and to evaluate the possibility of VNE images in diagnosis for those lesions. Methods A total of 128 gall stones and calcifications of the liver found in 110 patients were examined with triple phase abdominal CT scan from July 2007 to December 2011, in which true nonenhanced (TNE) phase and arterial phase were performed with single-energy CT (120 kVp) and portal venous phase was performed with dual-energy CT (100 kVp and 140 kVp). VNE images were generated from the portal venous phase dual-energy CT data sets by using commercially VNC software. The mean CT values for the stone, liver, bile and paraspinal muscle, mean lesion density and size in area dimension, contrast-to-noise ratio (CNR) of lesion to the liver or bile, and image noise were assessed and compared between VNE and TNE images. The effective dose and size-specific dose estimate (SSDE) were also calculated. Results The mean CT values of the lesions measured on VNE images declined significantly compared with those measured on TNE images (164.51±102.13vs. 290.72±197.80 HU,P<0.001), so did the lesion-to-liver CNR (10.80±11.82vs.18.81±17.06,P<0.001) and the lesion-to-bile CNR (17.24±14.41 vs. 21.32±17.31,P<0.001). There was no significant difference in size of lesions area between VNE and TNE images (0.69±0.88vs.0.72±0.85 cm2,P=0.062). Compared to the 128 lesions found in TNE images, VNE images showed the same density in 30 (23.4%) lesions, lighter density in 88 (68.8%) lesions, while failed to show 10 (7.8%) lesions, and showed the same size in 61 (47.7%) lesions and smaller size in 57 (44.5%) lesions. The CT cutoff values of lesion and size were 229.21 HU and 0.15 cm2, respectively. The total effective dose for triple phase scan protocol with TNE images was 19.51±7.03 mSv, and the SSDE was 39.84±11.10 mGy. The effective dose for dual phase scan protocol with VNE images i展开更多
AIM： To examine the effects of 10% diluted honey, which has been shown to be scolicidal, on the liver and biliary system and determine whether it could be used as a scolicidal agent in the presence of biliary-cystic ...AIM： To examine the effects of 10% diluted honey, which has been shown to be scolicidal, on the liver and biliary system and determine whether it could be used as a scolicidal agent in the presence of biliary-cystic communication. METHODS： Thirty Wistar-Albino rats were divided into two groups. Honey with 10% dilution in the study group and 0.9% saline （NaCI） in the control group were injected into the common bile ducts of rats through a 3-mm duodenotomy. The animals were sacrificed 6 mo alter the procedure. Histopathological, biochemical, and radiological examinations were performed for evaluation of side effects. RESULTS： At the end of the sixth month, liver function tests were found to be normal in both groups. The tissue samples of liver and ductus choledochus of the honey group showed no histomorphologic difference from the control group. No stricture on the biliary tree was detected on the retrograde cholangiograms. CONCLUSION： According to these results, we concluded that 10% diluted honey could be used as scolicidal agent safely in the presence of biliary-cystic communication.展开更多
The cause of obstructive jaundice is usually complex which renders its differential diagnosis and lesion localization challenging in clinical practice.Integrated Positron Emission tomography/Magnetic Resonance(PET/MR)...The cause of obstructive jaundice is usually complex which renders its differential diagnosis and lesion localization challenging in clinical practice.Integrated Positron Emission tomography/Magnetic Resonance(PET/MR)offers complementary information from PET and MR in the diagnosis of obstructive jaundice and is becoming widely adopted in clinical setting.While preserving its diagnostic accuracy,it is important to standardize and streamline the clinical scan protocol of PET/MR in evaluating obstructive jaundice.Based on literature review and experience of large number of clinical cases from the author group,this article reports an expert consensus on imaging protocol optimization and case interpretation template standardization.展开更多
Clonorchis sinensis infection is still a major public health problem.It is estimated that more than 15 million people worldwide are infected,especially in Northeast China,Taiwan,South Korea,and North Vietnam.The detec...Clonorchis sinensis infection is still a major public health problem.It is estimated that more than 15 million people worldwide are infected,especially in Northeast China,Taiwan,South Korea,and North Vietnam.The detection of Clonorchis sinensis eggs in feces and bile is still the only gold standard for the diagnosis of Clonorchis sinensis infection,and new detection methods are needed to improve the detection rate.After Clonorchis sinensis invades the human body,it mainly parasitizes the hepatobiliary tract.Therefore,it is closely related to hepatobiliary diseases such as cholangitis,bile duct stones,liver fibrosis,and cholangiocarcinoma.The increase in immunoglobulin G4(IgG4)caused by Clonorchis sinensis infection is rare and there are few reports about the relevant mechanism.It may be related to the inflammatory factors interleukin(IL)-4,IL-10,and IL-13 produced by human phagocytes,T cells,B cells,and other immune cells in the process of resisting the invasion of Clonorchis sinensis.However,this finding still needs further clarification and confirmation.This article reviews the epidemiology,clinical manifestations,serology,imaging,pathogenic mechanism,and control measures of Clonorchis sinensis infection to help establish the diagnostic process for Clonorchis sinensis.We report novel mechanisms of IgG4 elevation due to Clonorchis sinensis infection to provide more experience and a theoretical basis for clinical diagnosis and treatment of this infection.展开更多
目的分析目前POSSUM和P-POSSUM这两种广泛用于普外科手术风险预测的评分系统对肝胆手术患者术后并发症发生率和死亡率的预测价值。方法计算机检索PubMed、h e Cochrane Library(2013年第10期))、Science Citation Index、CNKI、WanFang ...目的分析目前POSSUM和P-POSSUM这两种广泛用于普外科手术风险预测的评分系统对肝胆手术患者术后并发症发生率和死亡率的预测价值。方法计算机检索PubMed、h e Cochrane Library(2013年第10期))、Science Citation Index、CNKI、WanFang Data和CBM数据库,查找关于在肝胆手术中使用POSSUM和/或P-POSSUM评分系统预测术后并发症发生率和死亡率的研究,检索时限均为从1991年至2013年10月。由2位评价员根据纳入与排除标准独立筛选文献、提取资料和评价纳入研究的方法学质量后,采用Comprehensive Meta Analysis Version 2软件进行Meta分析。结果共纳入10个研究。其中:5个研究(n=683)采用POSSUM预测了术后并发症发生率,其加权O/E=0.71,95%CI(0.60,0.81);7个研究(n=1?291)采用POSSUM预测了术后死亡率,其加权O/E=0.42,95%CI(0.27,0.57);6个研究(n=1?793)采用P-POSSUM预测了术后死亡率,其加权O/E=0.74,95%CI(0.53,0.95)。结论 POSSUM可能会高估肝胆手术患者的术后并发症发生率,而P-POSSUM对肝胆手术患者术后死亡率预测的准确性明显高于POSSUM。展开更多
基金Supported by the Health Industry Special Scientific Research Project(201402019)
文摘Objective To retrospectively determine the features of stones and calcifications in hepatobiliary system on virtual nonenhanced (VNE) dual-energy computed tomography (CT), and to evaluate the possibility of VNE images in diagnosis for those lesions. Methods A total of 128 gall stones and calcifications of the liver found in 110 patients were examined with triple phase abdominal CT scan from July 2007 to December 2011, in which true nonenhanced (TNE) phase and arterial phase were performed with single-energy CT (120 kVp) and portal venous phase was performed with dual-energy CT (100 kVp and 140 kVp). VNE images were generated from the portal venous phase dual-energy CT data sets by using commercially VNC software. The mean CT values for the stone, liver, bile and paraspinal muscle, mean lesion density and size in area dimension, contrast-to-noise ratio (CNR) of lesion to the liver or bile, and image noise were assessed and compared between VNE and TNE images. The effective dose and size-specific dose estimate (SSDE) were also calculated. Results The mean CT values of the lesions measured on VNE images declined significantly compared with those measured on TNE images (164.51±102.13vs. 290.72±197.80 HU,P<0.001), so did the lesion-to-liver CNR (10.80±11.82vs.18.81±17.06,P<0.001) and the lesion-to-bile CNR (17.24±14.41 vs. 21.32±17.31,P<0.001). There was no significant difference in size of lesions area between VNE and TNE images (0.69±0.88vs.0.72±0.85 cm2,P=0.062). Compared to the 128 lesions found in TNE images, VNE images showed the same density in 30 (23.4%) lesions, lighter density in 88 (68.8%) lesions, while failed to show 10 (7.8%) lesions, and showed the same size in 61 (47.7%) lesions and smaller size in 57 (44.5%) lesions. The CT cutoff values of lesion and size were 229.21 HU and 0.15 cm2, respectively. The total effective dose for triple phase scan protocol with TNE images was 19.51±7.03 mSv, and the SSDE was 39.84±11.10 mGy. The effective dose for dual phase scan protocol with VNE images i
文摘AIM： To examine the effects of 10% diluted honey, which has been shown to be scolicidal, on the liver and biliary system and determine whether it could be used as a scolicidal agent in the presence of biliary-cystic communication. METHODS： Thirty Wistar-Albino rats were divided into two groups. Honey with 10% dilution in the study group and 0.9% saline （NaCI） in the control group were injected into the common bile ducts of rats through a 3-mm duodenotomy. The animals were sacrificed 6 mo alter the procedure. Histopathological, biochemical, and radiological examinations were performed for evaluation of side effects. RESULTS： At the end of the sixth month, liver function tests were found to be normal in both groups. The tissue samples of liver and ductus choledochus of the honey group showed no histomorphologic difference from the control group. No stricture on the biliary tree was detected on the retrograde cholangiograms. CONCLUSION： According to these results, we concluded that 10% diluted honey could be used as scolicidal agent safely in the presence of biliary-cystic communication.
基金supported by grants from the Shanghai Municipal Key Clinical Specialty Project(SHSLCZDZK03401)Shanghai Science and Technology Project(19DZ1930700)+1 种基金the Shanghai Science and Technology Committee Program(20DZ2201800)the Three-year Action Plan of Clinical Skills and Innovation of Shanghai Hospital Development Center(SHDC2020CR3079B).
文摘The cause of obstructive jaundice is usually complex which renders its differential diagnosis and lesion localization challenging in clinical practice.Integrated Positron Emission tomography/Magnetic Resonance(PET/MR)offers complementary information from PET and MR in the diagnosis of obstructive jaundice and is becoming widely adopted in clinical setting.While preserving its diagnostic accuracy,it is important to standardize and streamline the clinical scan protocol of PET/MR in evaluating obstructive jaundice.Based on literature review and experience of large number of clinical cases from the author group,this article reports an expert consensus on imaging protocol optimization and case interpretation template standardization.
文摘Clonorchis sinensis infection is still a major public health problem.It is estimated that more than 15 million people worldwide are infected,especially in Northeast China,Taiwan,South Korea,and North Vietnam.The detection of Clonorchis sinensis eggs in feces and bile is still the only gold standard for the diagnosis of Clonorchis sinensis infection,and new detection methods are needed to improve the detection rate.After Clonorchis sinensis invades the human body,it mainly parasitizes the hepatobiliary tract.Therefore,it is closely related to hepatobiliary diseases such as cholangitis,bile duct stones,liver fibrosis,and cholangiocarcinoma.The increase in immunoglobulin G4(IgG4)caused by Clonorchis sinensis infection is rare and there are few reports about the relevant mechanism.It may be related to the inflammatory factors interleukin(IL)-4,IL-10,and IL-13 produced by human phagocytes,T cells,B cells,and other immune cells in the process of resisting the invasion of Clonorchis sinensis.However,this finding still needs further clarification and confirmation.This article reviews the epidemiology,clinical manifestations,serology,imaging,pathogenic mechanism,and control measures of Clonorchis sinensis infection to help establish the diagnostic process for Clonorchis sinensis.We report novel mechanisms of IgG4 elevation due to Clonorchis sinensis infection to provide more experience and a theoretical basis for clinical diagnosis and treatment of this infection.
文摘目的分析目前POSSUM和P-POSSUM这两种广泛用于普外科手术风险预测的评分系统对肝胆手术患者术后并发症发生率和死亡率的预测价值。方法计算机检索PubMed、h e Cochrane Library(2013年第10期))、Science Citation Index、CNKI、WanFang Data和CBM数据库,查找关于在肝胆手术中使用POSSUM和/或P-POSSUM评分系统预测术后并发症发生率和死亡率的研究,检索时限均为从1991年至2013年10月。由2位评价员根据纳入与排除标准独立筛选文献、提取资料和评价纳入研究的方法学质量后,采用Comprehensive Meta Analysis Version 2软件进行Meta分析。结果共纳入10个研究。其中:5个研究(n=683)采用POSSUM预测了术后并发症发生率,其加权O/E=0.71,95%CI(0.60,0.81);7个研究(n=1?291)采用POSSUM预测了术后死亡率,其加权O/E=0.42,95%CI(0.27,0.57);6个研究(n=1?793)采用P-POSSUM预测了术后死亡率,其加权O/E=0.74,95%CI(0.53,0.95)。结论 POSSUM可能会高估肝胆手术患者的术后并发症发生率,而P-POSSUM对肝胆手术患者术后死亡率预测的准确性明显高于POSSUM。
