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MR arteriography using an implantable port system: a new method in assessing perfusion abnormalities during hepatic
1Department of Radiology, Niigata University School of Medicine, Asahimachi-dori, Japan. hseki@med.niigata-u.ac.jp
Abstract:
We present a case in which MR arteriography (MRA) with an indwelling catheter was used in a perfusion study of intrahepatic arterial chemotherapy for liver metastases. After embolization of collateral vessels using platinum coils, CT imaging was disturbed by strong artifact. However, platinum coils produced no MR artifact. In addition, MRA had greater advantages in depicting perfusion defects than perfusion scintigraphy. We consider MRA useful in assessing perfusion abnormalities during intrahepatic arterial chemotherapy.
Insights
Magnetic resonance arteriography (MRA) with an indwelling catheter is useful for perfusion studies in liver cancer treatment. MRA effectively depicts perfusion defects, unlike CT imaging after platinum coil embolization.
Area of Science:
- Interventional Radiology
- Oncology
- Medical Imaging
Background:
- Intrahepatic arterial chemotherapy is used for liver metastases.
- Assessing treatment-induced perfusion changes is crucial.
Observation:
- CT imaging showed significant artifact after platinum coil embolization of collateral vessels.
- MR arteriography (MRA) with an indwelling catheter was employed for perfusion assessment.
Findings:
- Platinum coils did not produce MR artifact, allowing for clear MRA.
- MRA demonstrated superior visualization of perfusion defects compared to perfusion scintigraphy.
Implications:
- MRA is a valuable tool for evaluating perfusion abnormalities during intrahepatic arterial chemotherapy.
- MRA offers an advantage over CT and scintigraphy in this clinical setting.