Single-shot diffusion-weighted echo-planar imaging of normal and cirrhotic livers using a phased-array multicoil

Area of Science:

• Medical Imaging
• Hepatology
• Radiology

Background:

• Liver cirrhosis is a significant health concern characterized by fibrosis and impaired liver function.
• Accurate non-invasive methods for diagnosing liver cirrhosis are crucial for timely intervention and management.

Purpose of the Study:

• To evaluate the efficacy of single-shot spin-echo diffusion-weighted echo-planar imaging (DWI-EPI) in distinguishing between normal and cirrhotic livers.
• To identify specific diffusion parameters that can serve as biomarkers for liver cirrhosis.

Main Methods:

• Single-shot spin-echo DWI-EPI with a phased-array multicoil was employed.
• Sets of 6 images with varying b-values were acquired during breath-holding.
• Signal ratios and apparent diffusion coefficients (ADCs) were calculated and compared between groups.

Main Results:

• Significant differences in signal ratios were observed between normal livers and those with cirrhosis at a b-value of 383 s/mm2.
• Apparent diffusion coefficients also showed significant variations between control and cirrhosis cases.
• DWI-EPI demonstrated potential in characterizing liver tissue properties.

Conclusions:

• Single-shot spin-echo DWI-EPI is a promising technique for non-invasively differentiating normal from cirrhotic livers.
• Specific b-values, such as 383 s/mm2, and derived parameters like signal ratios and ADCs can aid in cirrhosis detection.
• This imaging modality warrants further investigation for clinical application in liver disease assessment.