Classification of anatomical morphology of cystic duct and its association with gallstone

BACKGROUND Gallstones are common lesions that often require surgical intervention.Laparo-scopic cholecystectomy is the treatment of choice for symptomatic gallstones.Preoperatively,the anatomical morphology of the cystic duct(CD),needs to be accurately recognized,especially when anatomical variations occur in the CD,which is otherwise prone to bile duct injury.However,at present,there is no optimal classification system for CD morphology applicable in clinical practice,and the relationship between anatomical variations in CDs and gallstones remains to be explored.AIM To create a more comprehensive clinically applicable classification of the morphology of CD and to explore the correlations between anatomic variants of CD and gallstones.METHODS A total of 300 patients were retrospectively enrolled from October 2021 to January 2022.The patients were divided into two groups:The gallstone group and the nongallstone group.Relevant clinical data and anatomical data of the CD based on magnetic resonance cholangiopancreatography(MRCP)were collected and analyzed to propose a morphological classification system of the CD and to explore its relationship with gallstones.Multivariate analysis was performed using logistic regression analyses to identify the independent risk factors using variables that were significant in the univariate analysis.RESULTS Of the 300 patients enrolled in this study,200(66.7%)had gallstones.The mean age was 48.10±13.30 years,142(47.3%)were male,and 158(52.7%)were female.A total of 55.7%of the patients had a body mass index(BMI)≥24 kg/m2.Based on the MRCP,the CD anatomical typology is divided into four types:Type I:Linear,type II:n-shaped,type III:S-shaped,and type IV:W-shaped.Univariate analysis revealed differences between the gallstone and nongallstone groups in relation to sex,BMI,cholesterol,triglycerides,morphology of CD,site of CD insertion into the extrahepatic bile duct,length of CD,and angle between the common hepatic duct and CD.According to the multivariate analysis,female,BMI(≥24 kg/m2),and CD morphology[n-shaped:Odds ratio(OR)=10.97,95%confidence interval(95%CI):5.22-23.07,P<0.001;S-shaped:OR=4.43,95%CI:1.64-11.95,P=0.003;W-shaped:OR=7.74,95%CI:1.88-31.78,P=0.005]were significantly associated with gallstones.CONCLUSION The present study details the morphological variation in the CD and confirms that CD tortuosity is an independent risk factor for gallstones.

Effect of the extrahepatic bile duct anatomy on choledocholithiasis and its clinical significance

BACKGROUND A comprehensive understanding of the extrahepatic bile duct anatomy is vital to guide surgical procedures and perform endoscopic retrograde cholangiography.Anatomical irregularities within the extrahepatic bile duct may increase susceptibility to bile duct stones.AIM To investigate the anatomical risk factors associated with extrahepatic bile ducts in patients diagnosed with choledocholithiasis,with a specific focus on preventing stone recurrence after surgical intervention and endoscopic lithotomy.METHODS We retrospectively analyzed the medical records of 124 patients without choledocholithiasis and 108 with confirmed choledocholithiasis who underwent magnetic resonance cholangiopancreatography examinations at our center between January 2022 and October 2022.Logistic regression analyses were conducted to identify the anatomical risk factors influencing the incidence of common bile duct stones.RESULTS Multivariate logistic regression analysis revealed that several factors independently contributed to choledocholithiasis risk.Significant independent risk factors for choledocholithiasis were diameter of the common hepatic[adjusted odds ratio(aOR)=1.43,95%confidence interval(CI):1.07-1.92,adjusted P value=0.016]and common bile(aOR=1.68,95%CI:1.27-2.23,adjusted P value<0.001)ducts,length of the common hepatic duct(aOR=0.92,95%CI:0.84-0.99,adjusted P value=0.034),and angle of the common bile duct(aOR=0.92,95%CI:0.89–0.95,adjusted P value<0.001).The anatomical features of the extrahepatic bile duct were directly associated with choledocholithiasis risk.Key risk factors include an enlarged diameter of the common hepatic and bile ducts,a shorter length of the common hepatic duct,and a reduced angle of the common bile duct.

Gd-EOB-DTPA-enhanced magnetic resonance imaging for bile duct intraductal papillary mucinous neoplasms

AIM: To investigate gadolinium-ethoxybenzyldiethylenetriamine-pentaacetic acid(Gd-EOB-DTPA)-enhanced magnetic resonance imaging(MRI) of intraductal papillary mucinous neoplasms of the bile duct(IPMN-B). METHODS: The imaging findings of five cases of IPMN-B which were pathologically confirmed at our hospital between March 2012 and May 2013 were retrospectively analyzed. Three of these cases were diagnosed by duodenal endoscopy and biopsy pathology, and two cases were diagnosed by surgical pathology. All five patients underwent enhanced and non-enhanced computed tomography(CT), magnetic resonance cholangiopancreatography, and Gd-EOB-DTPA-enhanced MRI; one case underwent both Gd-EOB-DTPA-enhanced MRI and positron emission tomography-CT. The clinical data and imaging results for these cases were compared and are presented.RESULTS: Conventional imaging showed diffusedilatation of bile ducts and multiple intraductal polypoid and papillary neoplasms or serrated changes along the bile ducts. In two cases, Gd-EOB-DTPA-enhanced MRI revealed dilated biliary ducts and intraductal tumors, as well as filling defects caused by mucin in the dilated bile ducts in the hepatobiliary phase. GdEOB-DTPA-enhanced MRI in one case clearly showed a low-signal tumor in the hepatobiliary phase, similar to what was seen by positron emission tomographyCT. In two patients, routine inspection was unable to discern whether the lesions were inflammation or tumors. However, Gd-EOB-DTPA-enhanced MRI revealed a pattern of gradual enhancement during the hepatobiliary phase, and the signal intensity of the lesions was lower than the surrounding liver parenchyma, suggesting tissue inflammation in both cases, which were confirmed by surgical pathology. CONCLUSION: Gd-EOB-DTPA-enhanced MRI reveals the intraductal mucin component of IPMN-B in some cases and the extent of tumor infiltration beyond the bile ducts in invasive cases.

Magnetic resonance cholangiopancreatography for the detection of pancreatic duct stones in patients with chronic pancreatitis

AIM:To assess the role of magnetic resonance cholangiopancreatography(MRCP) in detection of pancreatic duct stones(PDS) in patients with chronic pancreatitis(CP).METHODS:Clinical data of 78 CP patients who were treated at the First Affi liated Hospital of Xi'an Jiaotong University(China) between January 2004 and July 2008 were retrospectively analyzed.A predictive model of pancreatic duct stones was established through logistic regression and its effectiveness was verifi ed.Among these patients, MRCP was performed in 60 patients who served as a control group, while 44 patients with a higher predictive value than the entry threshold of the predictive model served as an experimental group.RESULTS:The positive rate of PDS in the 78 patients with CP was 19.2%(15/78).The predictive entry threshold of the predictive model was 5%(P < 0.05).The possibility of existence of PDS could be predicted according to the following 4 indexes:gastrointestinal symptoms, intermittent abdominal pain, diabetes mellitus(DM)/impaired glucose tolerance(IGT) and positive B-mode ultrasound results.The incidence of PDS in the experimental group was higher than that in the control group(P < 0.05).CONCLUSION:MRCP is strongly suggested for the detection of PDS in patients with gastrointestinal symptoms, intermittent abdominal pain, DM/IGT and positive B-mode ultrasound results.

Common bile duct diameter in an asymptomatic population:A magnetic resonance imaging study

AIM: To measure the common bile duct(CBD) diameter by magnetic resonance cholangiopancreatography(MRCP) in a large asymptomatic population and analyze its some affecting factors.METHODS: This study included 862 asymptomatic subjects who underwent MRCP. The CBD diameter was measured at its widest visible portion on regular endexpiration MRCP for all subjects. Among these 862 subjects, 221 volunteers also underwent end-inspiration MRCP to study the effect of respiration on the CBD diameter. The age, sex, respiration, body length, body weight, body mass index(BMI), portal vein diameter(PVD), length of the extrahepatic duct and CBD, cystic junction radial orientation and location were recorded. The subjects were divided into 7 groups according to age. All of the above factors were compared with the CBD diameter on end-expiration MRCP.RESULTS: Among the 862 subjects, the CBD diameter was 4.13 ± 1.11 mm(range, 1.76-9.45 mm) and was correlated with age(r = 0.484; P < 0.05), with a dilation of 0.033 mm per year. The upper limit of the 95% reference range was 5.95 mm, resulting in a reasonable upper limit of 6 mm for the asymptomatic population. Respiration and other factors, including sex, body length, body weight, BMI, PVD, length of the extrahepatic duct and CBD, cystic junction radia orientation and location, were not related to the CBD diameter.CONCLUSION: We established a reference range for the CBD diameter on MRCP for an asymptomatic population. The CBD diameter is correlated with age. Respiration did not affect the non-dilated CBD diameter.

Multiparameter magnetic resonance imaging of liver fibrosis in a bile duct ligation mouse model

BACKGROUND Bile duct ligation(BDL)in animals is a classical method for mimicking cholestatic fibrosis.Although different surgical techniques have been described in rats and rabbits,mouse models can be more cost-effective and reproducible for investigating cholestatic fibrosis.Magnetic resonance imaging(MRI)has made great advances for noninvasive assessment of liver fibrosis.More comprehensive liver fibrotic features of BDL on MRI are important.However,the utility of multiparameter MRI to detect liver fibrosis in a BDL mouse model has not been assessed.AIM To evaluate the correlation between the pathological changes and multiparameter MRI characteristics of liver fibrosis in a BDL mouse model.METHODS Twenty-eight healthy adult male balb/c mice were randomly divided into four groups:sham,week 2 BDL,week 4 BDL,and week 6 BDL.Multiparameter MRI sequences,included magnetic resonance cholangiopancreatography,T1-weighted,T2-weighted,T2 mapping,and pre-and post-enhanced T1 mapping,were performed after sham and BDL surgery.Peripheral blood and liver tissue were collected after MRI.For statistical analysis,Student’s t-test and Pearson’s correlation coefficient were used.RESULTS Four mice died after BDL surgery;seven,six,five and six mice were included separately from the four groups.Signal intensities of liver parenchyma showed no difference on TI-and T2-weighted images.Bile duct volume,ΔT1 value,T2 value,and the rate of liver fibrosis increased steadily in week 2 BDL,week 4 BDL and week 6 BDL groups compared with those in the sham group(P<0.01).Alanine aminotransferase and aspartate transaminase levels initially surged after surgery,followed by a gradual decline over time.Strong correlations were found between bile duct volume(r=0.84),T2 value(r=0.78),ΔT1 value(r=0.62),and hepatic fibrosis rate(all P<0.01)in the BDL groups.CONCLUSION The BDL mouse model induces changes that can be observed on MRI.The MRI parameters correlate with the hepatic fibrosis rate and allow for detection of cholestatic fibrosis.

单次屏气3D-GRASE序列在MRI胰胆管成像的应用

目的探讨MRI单次屏气3D-GRASE成像技术在胰胆管的应用价值。方法选取本院57例胰胆管疾病患者,所有患者均进行自由呼吸自旋回波技术(3D-RT-TSE)和屏气梯度-自旋回波技术(3D-BH-GRASE)胰胆管水成像,分别记录两种成像方法的扫描时间;测量计算图像胆总管信噪比(SNR)、胆总管与其周围组织对比度(CR)及胆总管和肝脏之间对比噪声比(CNR),并由2位高年资医师分别对图像质量、伪影、背景抑制及胰胆管的显示进行评分。结果与3D-RT-TSE技术比较,3D-BH-GRASE技术扫描时间明显缩短,差异有统计学意义(t=70.995,P<0.001);3D-BH-GRASE的整体图像质量、伪影、胰胆管的效果评分均高于3D-RT-TSE,两种方法差异均有统计学意义(P均<0.05)。3D-BH-GRASE图像SNR、CR、CNR及图像背景抑制方面均小于3D-RT-TSE,差异均有统计学意义(P均<0.001)。结论相比呼吸触发(3D-RTTSE)序列,3D-BH-GRASE序列扫描时间更短,整体图像质量和胰胆管显示更好,值得进一步推广应用。

大型永磁同步电机内外双循环强化散热性能模拟

针对高铁大型永磁同步牵引电机转子区域散热困难、内部温升分布不均匀的问题,在机壳水冷电机结构基础上的定子铁芯外表面处增设轴向矩形风道,并结合气隙、转子减重孔形成内外双循环散热结构,探究降低定子、绕组部位温升和提升电机内部散热均匀性的影响规律.首先通过Ansoft Maxwell平台仿真得到双循环散热结构在额定工况下各部件损耗值,同时为了更好模拟转子旋转带动气隙中的空气流动,对气隙进行分层处理,采用流-固耦合的有限元分析法模拟研究单、双循环散热结构下电机内部空气流动特性以及温升规律.结果表明,内循环风冷结构使电机内部空气流速显著提高,表面平均换热系数也显著提升,转子区域的热量会随着空气的流动更多地传给温度相对较低的定子区域及机壳,同时减少热量向转子部位传递,从而使转子和永磁体的温升降低.在此基础上,采用正交分析法对矩形通风孔的截面积、数量、高宽比进行结构参数优化,并采用温升分布均匀性系数对电机进行温升评价,得到最优方案下电机最高温升相比单循环散热结构降低12.1K,电机整体温升分布均匀性提升16.54%.

混合转子永磁电机双风道冷却系统设计

混合转子永磁电机具有高功率密度的优势,但也导致电机散热空间和散热能力不足等问题。为此,根据其特有的转子结构提出一种双风道冷却系统,并采用计算流体力学(Computational fluid dynamics,CFD)的方法对电机温度场进行验证。首先,根据电机损耗和尺寸设计一个适合双风道的轴流风扇。其次,对不同进、出风口的结构参数进行仿真,对比和分析仿真结果,选出冷却性能较好的参数组合。最后对单风道和该参数组合下的双风道进行数值模拟,仿真结果表明,使用双风道冷却结构后电机散热能力显著提升。

Response letter to “Acute cholangitis: Does malignant biliary obstruction vs choledocholithiasis etiology change the outcomes?” with imaging aspects

Radiological imaging findings may contribute to the differentiation of malignant biliary obstruction from choledocholithiasis in the etiology of acute cholangitis.

3D BH-GRASE序列与3D RT-TSE序列进行MRCP的应用价值分析

目的探讨对比分析三维屏气梯度-自旋回波(3D BH-GRASE序列)与三维呼吸触发快速自旋回波(3D RTTSE)序列进行磁共振胰胆管成像(MRCP)的应用价值。方法选取在我院因怀疑胰胆管病变而行腹部MRI检查的患者,均接受3D RT-TSE序列与3D BH-GRASE序列MRCP扫描。比较两种序列扫描时间、图像质量评分及显示病变情况。结果3D BH-GRASE序列的扫描时间为(16.4±1.7)s明显短于3D RT-TSE序列的(258.6±31.2)s,差异有统计学意义(P<0.05);3D BH-GRASE序列扫描图像胆囊、肝内胆管、胆囊管、胰管、胆总管等主要分支评分均明显高于3D RTTSE序列,差异有统计学意义(P<0.05);两种扫描序列方法对各区域病变检出率差异无统计学意义(P>0.05)。结论MRCP检查应用3D BH-GRASE序列扫描能够保证图像质量及显示病变,同时缩短扫描时间。

Limits of Riemann Solutions for Isentropic MHD in a Variable Cross-Section Duct as Magnetic Field Vanishes

The stability for magnetic field to the solution of the Riemann problem for the polytropic fluid in a variable cross-section duct is discussed.By the vanishing magnetic field method,the stable solutions are determined by comparing the limit solutions with the solutions of the Riemann problem for the polytropic fluid in a duct obtained by the entropy rate admissibility criterion.

肝内胆管囊腺瘤和囊腺癌的MRI鉴别诊断

目的分析肝内胆管囊腺瘤和囊腺癌之间的MRI表现差异,以提高对两种疾病的诊断准确率。方法分析经病理证实的24例囊腺瘤及10例囊腺癌患者的MRI表现,包括肿瘤部位、大小、瘤周胆管扩张,囊壁结节和强化方式等征象,并进行数据分析。结果24例囊腺瘤中单囊型5例,多囊型19例,多囊型病灶内有分隔,分隔菲薄且均匀;囊壁平均厚度(1.7±0.5)mm,伴瘤周胆管轻度扩张8例;增强后囊壁及囊隔中度强化5例,轻度强化19例。10例囊腺癌中单囊型6例,多囊型4例;10例均见囊壁不同程度增厚,平均厚度(2.2±0.7)mm;9例病灶囊壁见菜花状结节,伴瘤周胆管扩张8例;增强后囊壁中度强化8例,轻度强化2例。结论囊腺瘤和囊腺癌的分房、大小,瘤周胆管扩张,囊壁厚度,囊壁结节和强化方式的差异有统计学意义,MRI扫描及结合MRCP有助于诊断与鉴别诊断。

Imaging features of malignant vs stone-induced biliary obstruction:Aspects to consider

Radiological studies play a crucial role in the evaluation of patients with biliary duct obstruction,allowing for the guidance of clinical diagnosis towards a malignant or stone-induced etiology through the recognition of relevant imaging features,which must be continuously revisited given their prognostic significance.This article aims to emphasize the importance of recognizing crucial imaging aspects of malignant and stone-induced biliary obstruction.

肝胆管囊腺瘤和囊腺癌的CT、MRI表现及其与病理对照分析

目的 探讨肝胆管囊腺瘤和囊腺癌的CT及MRI表现,并与病理对照分析,以提高对该病的术前影像诊断准确性及鉴别诊断水平。方法 回顾性分析经手术病理证实的11例肝胆管囊腺瘤及囊腺癌患者的影像学征象及病理学特点,其中9例均行CT平扫及三期增强扫描,5例同时行MRI平扫及动态增强扫描。结果 在11例患者中,囊腺瘤8例,囊腺癌3例:11例均为单发,肝左叶7例,右叶3例,肝多叶受累1例;1例囊腺瘤为单囊性病灶,囊壁光整,CT见囊内主要表现为水样密度;1例囊腺癌以实性成为主,其余9例囊腺瘤及囊腺癌呈多发囊状,5例囊腺瘤囊壁光整,厚薄一致,部分分隔均匀增厚,增强扫描无强化或轻度强化;2例囊腺瘤有囊壁钙化;2例囊腺癌囊壁及其内分隔厚薄不一,增强扫描可见实性结节强化,门静脉期强化减退,呈“结节”状或“菜花状”,部分断面锯齿状改变。结论 肝胆管囊腺瘤及囊腺癌的CT、MRI表现,充分反映其病理学特点,注意病变的一些影像学特征性表现,如分隔不均匀增厚,囊壁“结节”或“菜花样”突起及伴有粗大钙化,在囊腺瘤及囊腺癌的鉴别诊断上具有重要意义。

CT联合MR多序列成像对胆总管小微结石的诊断价值

目的探讨CT联合磁共振(magnetic resonance,MR)多序列成像对胆总管小微结石的诊断价值。方法回顾性收集上海市静安区市北医院放射科2019年3月—2021年7月所有行上腹部CT平扫和磁共振胰胆管水成像(magnetic resonance cholangiopancreatography,MRCP)检查并经内镜逆行胰胆管造影(endoscopic retrograde cholangiopancreatography,ERCP)证实的胆总管小微结石病例的影像及临床资料,共计55例。对比分析CT、磁共振各序列及两者联合诊断胆总管小微结石的阳性率。结果对于55例胆总管小微结石,CT薄层扫描检出阳性率为56.4%,MR多序列扫描阳性率为80.6%,MR多序列扫描对胆总管小微结石诊断优于CT扫描(χ2=7.08,P<0.05)。CT联合MR多序列阳性率为98.2%,CT联合MR多序列扫描诊断胆总管小微结石优于两种单独检查方法(χ2的值分别为27.38,P<0.01;9.35,P<0.05)。对于22例胆总管微结石,CT薄层扫描阳性率为40.9%,MR多序列扫描阳性率为68.2%,两者比较差异无统计学意义(χ2=3.30,P>0.05),CT联合MR多序列扫描阳性率为95.5%,CT联合MR多序列扫描诊断胆总管微结石也优于两种单独检查方法(χ2的值分别为15.09,P<0.01;5.50,P<0.05)。结论CT联合MR多序列成像有利于提高胆总管小微结石诊断的检出率,对胆总管小微结石的诊疗具有重要价值。

腹部CT与磁共振胰胆管成像在肝外胆管结石诊断中的应用价值

目的:分析腹部CT与磁共振胰胆管成像在肝外胆管结石诊断中的应用价值。方法:回顾性分析2020年1月—2022年5月郑州市第三人民医院接受诊治的70例疑似肝外胆管结石患者临床资料,对所有患者均进行腹部CT与磁共振胰胆管成像扫描诊断,以手术病理结果为金标准,统计两种诊断方式的诊断效能,统计两种诊断方式对直径<8 mm结石的检出率,记录检查所耗用的时间。结果:以手术病理结果为金标准,70例疑似患者中阳性和阴性分别为67例和3例,腹部CT与磁共振胰胆管成像诊断的符合率分别为53例(75.71%)和65例(92.86%),在诊断效能方面,两种诊断方式的特异度比较,差异无统计学意义(χ^(2)=0,P>0.05);磁共振胰胆管成像诊断的敏感度、准确率均较腹部CT高,差异有统计学意义(χ^(2)=8.873、8.776,P<0.05);磁共振胰胆管成像对直径<8 mm结石检出率较腹部CT高,但是所用的检查时间稍长,差异有统计学意义(χ^(2)=18.746;t=2.613,P<0.05)。结论:临床上对肝外胆管结石患者实施诊断时,应用腹部CT与磁共振胰胆管成像诊断均可,但是相比较而言,磁共振胰胆管成像诊断准确率更高,可为临床治疗提供可靠的指导依据。

基于术前磁共振成像分类指导精囊镜技术治疗精道远端疾病的临床研究

目的探讨术前磁共振成像(MRI)分类指导精囊镜技术治疗精道远端疾病的可行性和安全性。方法回顾性分析2019年1月至2023年2月在合肥市第二人民医院接受精囊镜技术治疗的35例精道远端疾病患者的临床资料。所有患者术前均接受了精道远端的MRI检查,根据MRI影像学结果分为梗阻型精道远端疾病与非梗阻精道远端疾病两种类型。所有患者在硬膜外麻醉或全麻下接受F6/7.5精囊镜检查,分析并对比两种类型患者精囊镜手术的进镜成功率、进镜方式、手术时间、术后并发症等。结果35例精囊镜手术精囊镜均成功进入精囊。17例MRI诊断为梗阻型精道远端疾病的患者中,有88.2%(15/17)的患者术中需经小囊途径进入精囊,平均手术时间为(96.8±58.7)min;18例MRI诊断为非梗阻型精道远端疾病的患者中,有44.4%(8/18)的患者需经小囊途径进入精囊,平均手术时间为(96.9±59.2)min。两类患者进镜方式比较,差异具有统计学意义(P<0.05);但手术时间比较,差异无统计学意义(P>0.05)。经术后随访,所有患者均未出现附睾炎、逆行射精、直肠损伤等严重并发症。结论术前通过MRI影像对精道远端疾病患者进行分类可以有效指导精囊镜手术方式的选择,提高手术进镜的成功率,提高手术的安全性。

泪腺导管囊肿影像表现及临床特点分析

目的探讨分析泪腺导管囊肿的CT、MRI影像表现特征及其临床特点,提高对该病的影像诊断正确率。方法回顾性病例研究。分析我院2017年1月至2023年2月经手术病例证实的18例(18只眼)泪腺导管囊肿的临床特点、病理学、CT和MRI影像表现等资料。结果18例泪腺导管囊肿均为单侧发病,均为首发患者,有眼部病史患者4例,伴发眼部疼痛、肿胀、眼磨等不适症状患者12例,右眼眶13例,左眼眶5例,15位于泪腺睑部,1例位于泪腺眶部,1例位于上睑穹隆部,1例位于泪囊窝,18例均为单侧发病。18例行CT平扫,低密度(CT值030HU)13例,软组织密度(CT值3080HU)5例,其内均未见钙化。18例行MRI平扫及增强扫描,其中T1WI呈低信号者13例,等信号者5例,DWI均未见受限改变,增强扫描13例未见强化,5例可见囊壁稍增厚、毛糙、强化。病理提示18例泪腺导管囊肿中,3例可见炎性细胞。结论泪腺导管囊肿好发于中老年患者,男性稍多见,临床症状多以眼部肿胀、疼痛、眼磨多见,CT低密度、MRI呈长T1长T2、增强无强化是泪腺导管囊肿的特征影像表现。

MRCP联合荧光胆道造影在腹腔镜胆囊切除术中识别胆囊床胆管的应用价值

目的探讨磁共振胆胰管成像(MRCP)联合吲哚箐绿(ICG)近红外荧光成像胆道造影技术在腹腔镜胆囊切除术(LC)中识别胆囊床胆管的可行性及临床应用价值。方法回顾性分析2021年7月至2023年12月淄博市市立医院术前完善MRCP评估、术中应用荧光胆道造影技术行LC术的160例患者的临床资料(研究组),同时收集2020年1月至2023年12月本院应用传统腹腔镜标准白光模式下行胆囊切除术的180例患者的临床资料(对照组),比较两组患者术中、术后相关指标。结果研究组术中出血量与对照组差异无统计学意义[(10.3±1.7)mL vs(11.9±1.4)mL,P>0.05],手术时间较对照组短[(30.6±10.3)min vs(45.7±9.6)min,P<0.05]。研究组共7.5%(12/160)患者术中荧光胆道造影发现存在胆囊床胆管。研究组出现1例胆囊床胆管损伤,术中给予缝扎,术后无胆漏发生;对照组出现2例胆囊床胆管漏,行内镜逆行胆胰管造影(ERCP)证实。研究组较对照组住院时间短[2.0(1.0,2.0)d vs 3.0(2.0,4.0)d,P<0.05]、置管率较对照组低[2.50%(4/160)vs 8.33%(15/180),P<0.05]。两组术后胆漏发生率、置管时间差异无统计学意义(均P>0.05)。MRCP对诊断胆囊床胆管敏感性为58.3%,特异性为61.0%。结论术前完善MRCP评估,术中应用ICG荧光成像技术有利于胆囊床胆管的发现,可缩短手术时间、提高手术安全性,减少术后并后症发生。