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Abdominal Radiology

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05-12-2023 | Liver Cirrhosis | Pancreas

Intravoxel incoherent motion diffusion-weighted imaging for evaluating the pancreatic perfusion in cirrhotic patients

Authors: Ran Hu, Guo-Fei Zeng, Yu Fang, Lisha Nie, Hui-Lou Liang, Zhi-Gang Wang, Hua Yang

Published in: Abdominal Radiology | Issue 2/2024

Abstract

Purpose

To assess the characteristics of pancreatic perfusion in normal pancreas versus cirrhotic patients using intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI).

Methods

A total of 67 cirrhotic patients and 33 healthy subjects underwent IVIM on a 3.0 T MRI scanner. Diffusion coefficient (ADC_slow), pseudo-diffusion coefficient (ADC_fast), and perfusion fraction (f) were calculated based on the bi-exponential model. The pancreatic IVIM-derived parameters were then compared. In the cirrhotic group, the relationship was analyzed between IVIM-derived pancreatic parameters and different classes of hepatic function as determined by the Child-Pugh classification. Also, the pancreatic IVIM-derived parameters were compared among different classes of cirrhosis as determined by the Child-Pugh classification.

Results

The f value of the pancreas in cirrhotic patients was significantly lower than that in normal subjects (p = 0.01). In the cirrhotic group, the f value of the pancreas decreased with the increase of the Child-Pugh classification (R = − 0.49, p = 0.00). The f value of the pancreas was significantly higher in Child-Pugh class A patients than in class B and C patients (p = 0.02, 0.00, respectively), whereas there was no significant difference between class B and C patients (p = 0.16).

Conclusion

The IVIM-derived perfusion-related parameter (f value) could be helpful for the evaluation of pancreatic perfusion in liver cirrhosis. Our data also suggest that the blood perfusion decrease in the pancreas is present in liver cirrhosis, and the pancreatic perfusion tends to decrease with the increasing severity of hepatic function.

Trial registration

Trial registration number is 2021-ky-68 and date of registration for prospectively registered trials is February 23, 2022.

Graphical abstract

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Title: Intravoxel incoherent motion diffusion-weighted imaging for evaluating the pancreatic perfusion in cirrhotic patients
Authors: Ran Hu
Guo-Fei Zeng
Yu Fang
Lisha Nie
Hui-Lou Liang
Zhi-Gang Wang
Hua Yang
Publication date: 05-12-2023
Publisher: Springer US
Keywords: Liver Cirrhosis
Magnetic Resonance Imaging
Magnetic Resonance Imaging
Portal Hypertension
Portal Hypertension
Published in: Abdominal Radiology / Issue 2/2024
Print ISSN: 2366-004X
Electronic ISSN: 2366-0058
DOI: https://doi.org/10.1007/s00261-023-04063-0

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Abstract

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Conclusion

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Graphical abstract

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