Analysis of three-dimensional visualization imaging of severe portal vein stenosis after liver transplantation and clinical efficacy of portal vein stent implantation

Zhao Hongqiang; Liu Ying; Ma Jianming; Li Ang; Yu Lihan; Tong Xuan; Wu Guangdong; Lu Qian; Zhang Yuewei; Tang Rui

doi:10.3969/j.issn.1674-7445.2023201

Volume 15 Issue 1

Jan. 2024

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Article Navigation > ORGAN TRANSPLANTATION > 2024 > 15(1): 82-89

Zhao Hongqiang, Liu Ying, Ma Jianming, et al. Analysis of three-dimensional visualization imaging of severe portal vein stenosis after liver transplantation and clinical efficacy of portal vein stent implantation[J]. ORGAN TRANSPLANTATION, 2024, 15(1): 82-89. doi: 10.3969/j.issn.1674-7445.2023201

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Analysis of three-dimensional visualization imaging of severe portal vein stenosis after liver transplantation and clinical efficacy of portal vein stent implantation

doi: 10.3969/j.issn.1674-7445.2023201

*.
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

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Corresponding author: Tang Rui, Email: tangrui_hs@163.com
Received Date: 2023-10-08
Accepted Date: 2023-11-07

Available Online: 2023-11-29

Publish Date: 2024-01-11

Abstract

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.
- Liver transplantation,
- Vascular complication,
- Portal vein stenosis,
- Interventional therapy,
- Three-dimensional visualization imaging,
- Portal vein stent,
- Accelerated blood flow,
- Portal hypertension

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References

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Analysis of three-dimensional visualization imaging of severe portal vein stenosis after liver transplantation and clinical efficacy of portal vein stent implantation

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Analysis of three-dimensional visualization imaging of severe portal vein stenosis after liver transplantation and clinical efficacy of portal vein stent implantation

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