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Hepatic perfusional changes on CT and MRI: a radiology primer
Dane Gunter1, Shaista Riaz2, Ehsan A Haider3
1University College Cork, School of Medicine, Cork, Ireland.
Abdominal Radiology (New York)
|October 13, 2020
Summary
Hepatic perfusional changes due to various conditions are common. This review details how contrast-enhanced CT and MRI imaging help radiologists accurately diagnose these changes and avoid pitfalls.
Area of Science:
- Radiology
- Hepatology
- Medical Imaging
Background:
- Hepatic perfusional changes are frequently observed in diverse pathological conditions, including neoplastic, inflammatory, fibrotic, and ischemic processes.
- The liver's dual blood supply makes it uniquely suited for evaluation with multiphasic contrast-enhanced computed tomography (CT) and magnetic resonance imaging (MRI).
Purpose of the Study:
- To review the various causes of hepatic perfusional changes.
- To elucidate the CT and MRI appearance of these changes for accurate diagnosis.
- To highlight common diagnostic pitfalls in evaluating hepatic blood flow abnormalities.
Main Methods:
- Review of imaging findings from contrast-enhanced CT and MRI.
- Correlation of imaging appearance with clinical presentation and underlying pathology.
- Discussion of differential diagnoses for hepatic perfusional abnormalities.
Main Results:
- Diverse pathological processes can lead to similar hepatic perfusional changes on imaging.
- Multiphase imaging characteristics on CT and MRI are crucial for differentiating causes.
- Awareness of imaging patterns aids in accurate diagnosis and prevention of misdiagnosis.
Conclusions:
- Accurate interpretation of hepatic perfusional changes on CT and MRI requires knowledge of their varied etiologies.
- Understanding common imaging pitfalls is essential for radiologists to prevent misdiagnosis or delayed diagnosis of liver conditions.
- Integrated analysis of imaging features and clinical context facilitates precise diagnosis of hepatic perfusion abnormalities.