Diffusion-Weighted Imaging with Two Different b-Values in Detection of Solid Focal Liver Lesions

Area of Science:

• Radiology
• Medical Imaging
• Hepatology

Background:

• Accurate detection of focal liver lesions (FLLs) is crucial for diagnosing liver disease.
• Magnetic Resonance Imaging (MRI) techniques are continuously evolving to improve lesion characterization.

Purpose of the Study:

• To compare the detection rates of diffusion-weighted imaging (DWI) with different b-values against T2-weighted imaging (T2WI) for solid FLLs.
• To evaluate the diagnostic performance of DWI600 in detecting malignant FLLs and lesions of various sizes.

Main Methods:

• A prospective study involving 182 patients with suspected liver disease.
• Comparison of three MRI sequences: DWI with two b-values (including DWI600) and T2WI.
• Analysis of detection rates and subgroup analyses based on lesion characteristics.

Main Results:

• DWI600 demonstrated equivalent overall detection rates for solid FLLs compared to DWI100 and T2WI.
• DWI600 showed significantly higher accuracy in detecting malignant solid FLLs.
• Enhanced detection accuracy for solid FLLs larger than 10 mm was observed with DWI600.

Conclusions:

• DWI600 is a valuable MRI sequence for detecting solid focal liver lesions.
• DWI600 offers improved diagnostic performance for malignant FLLs and larger lesions.
• This technique enhances the diagnostic capabilities of MRI in evaluating liver disease.