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[Evaluation of multislice dynamic MR imaging of the whole liver by inversion recovery snap shot FLASH method]
O Satoh1, T Takahashi, S Naruse
1Department of Radiology, Kyoto Prefectural University of Medicine.
Abstract:
We acquired dynamic images over the whole liver by inversion recovery snap shot FLASH method after a bolus intravenous injection of Gadolinium-DTPA. Each nodule of hepatoma in the liver showed early enhancement and gradually turned to show low intensity. In two cases of hepatoma, small intrahepatic metastases, which were not detected by US, CT and spin-echo image of MRI, were suspected as high intensity nodules on early phase. Also recurrent areas after TAE were enhanced on early phase. This method is practical for improving the detection of lesions and is useful for evaluating the recurrence after TAE.
Insights
Dynamic MRI with Gadolinium-DTPA enhances hepatoma detection. This technique improves visualization of liver lesions and recurrence after transarterial embolization (TAE).
Area of Science:
- Hepatobiliary imaging
- Medical physics
- Radiology
Context:
- Hepatocellular carcinoma (HCC) diagnosis and monitoring remain challenging.
- Conventional imaging modalities may miss small intrahepatic metastases or early recurrence.
- Dynamic contrast-enhanced MRI offers potential for improved lesion detection.
Purpose:
- To evaluate the utility of a dynamic inversion recovery snapshot FLASH MRI technique with Gadolinium-DTPA for detecting hepatoma.
- To assess the capability of this method in identifying intrahepatic metastases and recurrence after transarterial embolization (TAE).
Summary:
- Dynamic imaging of the whole liver was performed using inversion recovery snapshot FLASH MRI after Gadolinium-DTPA injection.
- Hepatoma nodules exhibited initial enhancement followed by decreased intensity.
- The technique revealed suspected intrahepatic metastases, not seen on US, CT, or spin-echo MRI, and enhanced recurrent areas post-TAE.
Impact:
- This dynamic MRI method is practical for enhancing the detection of liver lesions.
- It proves useful for evaluating tumor recurrence after transarterial embolization.
- Improved lesion detection can lead to timely and more effective patient management.