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Hepatic haemangioma: dynamic MRI using gadolinium-DTPA
K Ohtomo1, Y Itai, K Yoshikawa
1Department of Radiology, University of Tokyo, Japan.
European Journal of Radiology
|November 1, 1987
Summary
Dynamic MRI effectively visualizes hepatic hemangiomas with gadolinium contrast. This method shows dense lesion enhancement and is better tolerated than CT scans.
Area of Science:
- Radiology
- Medical Imaging
- Hepatology
Background:
- Hepatic hemangiomas are benign liver tumors.
- Accurate diagnosis is crucial for patient management.
- Contrast-enhanced imaging is standard for evaluation.
Purpose of the Study:
- To evaluate the efficacy of dynamic Magnetic Resonance Imaging (MRI) for hepatic hemangioma.
- To assess contrast enhancement patterns of hepatic hemangiomas using MRI.
Main Methods:
- Six patients with hepatic hemangioma underwent dynamic MRI.
- Scans were performed before and after gadolinium-DTPA injection.
- Spin-echo imaging parameters: TR 100 ms, TE 20 ms, scan time 26 sec.
Main Results:
- All patients demonstrated dense contrast enhancement of hepatic hemangiomas.
- Enhancement showed a 'high signal fill-in' pattern, spreading from the lesion.
- Enhanced signal intensity exceeded surrounding liver parenchyma by two minutes post-injection.
Conclusions:
- Dynamic MRI is a promising tool for hepatic hemangioma evaluation.
- MRI offers superior patient tolerance compared to dynamic CT with iodinated contrast.