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目的:探讨动态单光子发射计算机断层扫描n 99Tcn m-乙二烯三胺五醋酸-半乳糖人血清白蛋白显像技术（简称GSA检查）评估肝门部胆管癌门静脉栓塞术（PVE）后肝脏功能的应用价值。n 方法:采用回顾性描述性研究方法。收集2019年10月至2021年1月清华大学附属北京清华长庚医院收治的16例PVE后行GSA检查肝门部胆管癌病人的临床病理资料；男8例，女8例；中位年龄为64岁，年龄范围为46~78岁。观察指标：（1）PVE后肝脏体积情况。（2）PVE后肝脏功能情况。（3）典型病例分析。正态分布的计量资料以n x±n s表示，计数资料以绝对数或百分比表示。同一病人数据比较采用配对n t检验。n 结果:（1）PVE后肝脏体积情况：16例病人全肝形态学肝体积和功能性肝体积分别为（1 420±211）mL和（389±112）mL，规划预留肝叶形态学肝体积和功能性肝体积分别为（636±143）mL和（234±106）mL，规划切除肝叶形态学肝体积和功能性肝体积分别为（784±210）mL和（151±106）mL。16例病人规划预留肝叶功能性肝密度（FLD）和规划切除肝叶FLD分别为0.36±0.12和0.19±0.11，两者比较，差异有统计学意义（n t=3.794，n P<0.05）。16例病人规划形态学肝体积切除率和规划功能性肝体积切除率分别为37.8%±0.6%和54.8%±0.2%，两者比较，差异均有统计学意义（n t=-3.720，n P<0.05）。（2）PVE后肝脏功能情况：16例病人中，13例完成吲哚菁绿试验（以下简称ICG检查），3例因ICG不耐受未完成ICG检查。13例行ICG检查病人的全肝吲哚菁血清除率（ICG-K）值为（0.15±0.03）/min，规划预留肝叶ICG-K值为（0.07±0.02）/min。16例病人全肝肝细胞GSA摄取速率常数（GSA-K值）为（0.14±0.10）/min，规划预留肝叶GSA-K值为（0.08±0.06）/min。（3）典型病例分析：1例肝门部胆管癌病人，男，46岁，Bismuth Ⅲa型。拟行围肝门切除联合右半肝切除术，影像学评估预留肝叶体积占全肝体积27%。入院血清总胆红素为256 μmol/L，行经皮经肝穿刺胆道引流术。5 d后血清总胆红素下降至118 μmol/L，行PVE栓塞门静脉右前+右后支。PVE后37 d行GSA检查，规划预留肝叶形态学肝体积为559 mL，全肝形态学肝体积为1 461 mL，规划形态学肝体积切除率为61.7%。全肝ICG-K值为0.12/min，规划预留肝叶ICG-K值为0.04/min。规划预留肝叶功能性肝体积为134 mL，全肝功能性肝体积为309 mL，规划功能性肝体积切除率为56.6%。全肝GSA-K值为0.20/min，规划预留肝叶GSA-K值为0.09/min。病人行围肝门切除联合右半肝切除术，获得Rn 0切除，术后未发生肝衰竭，生存时间为11个月。n 结论:GSA检查可用于评估PVE后肝门部胆管癌病人预留肝叶区域功能。“,”Objective:To investigate the application value of dynamic scintigraphy single-photonemission computed tomography (SPECT) 99m-technetium-galactosyl human serum albumin diethy-lenetriamine pentaacetic (n 99Tcn m-GSA) scintigraphy in assessing liver function of perihilar cholangio-carcinoma after portal vein embolization (PVE).n Methods:The retrospective and descriptive study was conducted. The clinicopathological data of 16 patients with perihilar cholangiocarcinoma who underwent n 99Tcn m-GSA scintigraphy after PVE in Beijing Tsinghua Changgung Hospital Affiliated to Tsinghua University from October 2019 to January 2021 were collected. There were 8 males and 8 females, aged from 46 to 78 years, with a median age of 64 years. Observation indicators: (1) liver volume after PVE; (2) liver function after PVE; (3) typical case analysis. Measurement data with normal distribution were represented as n Mean±n SD. Count data were represented as absolute numbers or percentages. Comparison of data of the same patient was analyzed using the paired n t test.n Results:(1) Liver volume after PVE:the morphological liver volume and functional liver volume for the 16 patients were (1 420±211)mL and (389±112)mL. The morphological liver volume and functional liver volume were (636±143)mL and (234±106)mL of planning reserved lobe, (784±210)mL and (151±106)mL of planning resection lobe, respectively. The functional liver density (FLD) of planning reserved lobe and planning resection lobe were 0.36±0.12 and 0.19±0.11, showing a significant difference between them (n t=3.794, n P<0.05). The planning resection rate of morpholo-gical liver volume and functional liver volume were 37.8%±0.6% and 54.8%±0.2%, showing a significant difference between them (n t=?3.720, n P<0.05). (2) Liver function after PVE: 13 of 16 patients completed the indocyanine green (ICG) test, and 3 patients didn't complete the ICG test due to intolerance. For the 13 patients undergoing ICG test, the total ICG-K value was (0.15±0.03)/minutes, and the ICG-K value of planning reserved lobe was (0.07±0.02)/minutes. The total GSA-K value of 16 patients was (0.14±0.10)/minutes, and the GSA-K value of planning reserved lobe was (0.08±0.06)/minutes. (3) Typical case analysis: a 46-year-old male patient with type Bismuth Ⅲa perihilar cholangiocarcinoma was planned to perform perihilar hepatectomy combined with right hepatectomy. The imaging evaluation showed that the volume of reserved liver lobe accounted for 27% of the total liver volume. The serum total bilirubin was 256 μmol/L when admitted and decreased to 118 μmol/L on the day 5 after percutaneous transhepatic biliary drainage. The right anterior and right posterior branches of PVE was performed. SPECTn 99Tcn m-GSA examination was performed on the day 37 after PVE. The morphological liver volume was 559 mL of planned reserved lobe and 1 461 mL of the whole liver. The planned morphological liver volume resection rate was 61.7%. ICG-K was 0.12/minutes of the whole liver, and 0.04/minutes of planned reserved lobe. The functional liver volume was 134 mL of planned reserved lobe and 309 mL of the whole liver. The planned resection rate of functional liver volume was 56.6%. The GSA-K was 0.20/minutes of the whole liver and 0.09/minutes of planned reserved lobe. Rn 0 resection was achieved in perihilar hepatectomy combined with right hepatectomy and no liver failure occurred. The survival time of patients was 11 months.n Conclusion:Dynamic SPECT n 99Tcn m-GSA scintigraphy can effectively evaluate the regional function of the reserved liver lobe in patients with perihilar cholangiocarcinoma after PVE.n