[The place of MRI in the hepatic tumors]

Area of Science:

• Radiology and Medical Imaging
• Hepatology
• Oncology

Background:

• Accurate diagnosis of hepatic tumors is crucial for patient management.
• Magnetic Resonance Imaging (MRI) is a key modality for liver lesion characterization.
• Distinguishing between benign and malignant hepatic lesions can be complex.

Purpose of the Study:

• To evaluate the diagnostic performance of MRI in characterizing hepatic tumors.
• To assess the characteristic MRI semeiology of common liver tumors.
• To determine the specificity of MRI findings for differentiating hepatic lesions.

Main Methods:

• Retrospective analysis of 132 patients with hepatic tumors.
• MRI examinations performed using a 1 Tesla system.
• Acquisition of T2-weighted fast spin echo and dynamic Gadolinium-enhanced flash MRI sequences.

Main Results:

• MRI demonstrated characteristic signs for liver hemangiomas in most cases.
• Adenomas, hepatocellular carcinomas, and metastases exhibited variable and less specific MRI features.
• Diagnostic accuracy varied depending on the specific hepatic tumor type.

Conclusions:

• MRI is highly effective for diagnosing typical liver hemangiomas.
• MRI semeiology for adenoma, hepatocellular carcinoma, and metastases is less specific, requiring careful interpretation.
• Further investigation may be needed for definitive characterization of non-hemangiomatous liver lesions.