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Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
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Current Approach to Planning Angiography and MAA Administration.
Clayton W Commander1, David M Mauro1
1Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
Seminars in Interventional Radiology
|October 11, 2021
Summary
Transarterial radioembolization using yttrium-90 microspheres for liver tumors requires careful angiography planning. This diagnostic step ensures safe, effective treatment and minimizes radiation damage to healthy liver tissue.
Area of Science:
- Interventional Radiology
- Nuclear Medicine
- Oncology
Background:
- Transarterial radioembolization (TARE) with yttrium-90 (90Y) microspheres is a standard treatment for hepatic malignancies.
- TARE is typically a two-part procedure involving diagnostic angiography and subsequent treatment.
Purpose of the Study:
- To review the critical steps and considerations during diagnostic angiography for TARE.
- To discuss methods for optimizing radiation dose delivery and minimizing toxicity.
Main Methods:
- Diagnostic angiography with technetium-99m-macroaggregated albumin (99mTc-MAA) injection.
- Planar scintigraphy for radiation dosimetry and treatment planning.
- Review of procedural details and potential complications.
Main Results:
- Angiography planning is crucial for accurate microsphere delivery to tumors.
- Precise dosimetry is essential to maximize therapeutic effect and minimize radiation-induced liver disease.
- Careful patient selection and anatomical assessment are key to successful outcomes.
Conclusions:
- Optimized diagnostic angiography is fundamental for safe and effective yttrium-90 radioembolization.
- Future research should focus on refining imaging techniques and treatment strategies for hepatic malignancies.
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