Analysis of three-dimensional visualization imaging of severe portal vein stenosis after liver transplantation and clinical efficacy of portal vein stent implantation
10.3969/j.issn.1674-7445.2023201
- VernacularTitle:肝移植术后严重门静脉狭窄的三维可视化成像与门静脉支架植入术疗效分析
- Author:
Hongqiang ZHAO
1
;
Ying LIU
1
;
Jianming MA
2
;
Ang LI
1
;
Lihan YU
1
;
Xuan TONG
1
;
Guangdong WU
1
;
Qian LU
1
;
Yuewei ZHANG
1
;
Rui TANG
2
,
3
Author Information
1. Hepatopancreatobiliary Center, Beijing Tsinghua Changgung Hospital Affiliatal to Tsinghua University, Key Laboratory of Digital Intelligence Hepatology of Ministry of Education, School of Clinical Medicine, Tsinghua University, Beijing 102218, China.
2. .
3. Hepatopancreatobiliary Center, Beijing Tsinghua Changgung Hospital Affiliatal to Tsinghua University, Key Laboratory of Digital Intelligence Hepatology of Ministry of Education, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
- Publication Type:OriginalArticle
- Keywords:
Liver transplantation;
Vascular complication;
Portal vein stenosis;
Interventional therapy;
Three-dimensional visualization imaging;
Portal vein stent;
Accelerated blood flow;
Portal hypertension
- From:
Organ Transplantation
2024;15(1):82-89
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze three-dimensional imaging characteristics and advantages for severe portal vein stenosis after liver transplantation, and to evaluate clinical efficacy of portal vein stent implantation. Methods Clinical data of 10 patients who received portal vein stent implantation for severe portal vein stenosis after liver transplantation were retrospectively analyzed. Imaging characteristics of severe portal vein stenosis, and advantages of three-dimensional reconstruction imaging and interventional treatment efficacy for severe portal vein stenosis were analyzed. Results Among 10 patients, 3 cases were diagnosed with centripetal stenosis, tortuosity angulation-induced stenosis in 2 cases, compression-induced stenosis in 2 cases, long-segment stenosis and/or vascular occlusion in 3 cases. Three-dimensional reconstruction images possessed advantages in accurate identification of stenosis, identification of stenosis types and measurement of stenosis length. All patients were successfully implanted with portal vein stents. After stent implantation, the diameter of the minimum diameter of portal vein was increased [(6.2±0.9) mm vs. (2.6±1.7) mm, P<0.05], the flow velocity at anastomotic site was decreased [(57±19) cm/s vs. (128±27) cm/s, P<0.05], and the flow velocity at the portal vein adjacent to the liver was increased [(41±6) cm/s vs. (18±6) cm/s, P<0.05]. One patient suffered from intrahepatic hematoma caused by interventional puncture, which was mitigated after conservative observation and treatment. The remaining patients did not experience relevant complications. Conclusions Three-dimensional visualization technique may visually display the location, characteristics and severity of stenosis, which is beneficial for clinicians to make treatment decisions and assist interventional procedures. Timely implantation of portal vein stent may effectively reverse pathological process and improve portal vein blood flow.
