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Scintigraphic diagnosis of right ventricular ischemia
S M Kim1, C H Park, C M Intenzo
1Department of Radiation Oncology and Nuclear Medicine, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107.
Insights
Exercise-induced right ventricular ischemia, diagnosed via thallium-201 (TI-201) myocardial scintiscan, was successfully treated. Percutaneous transluminal coronary angioplasty resolved the proximal right coronary artery occlusion, normalizing scintiscan results.
Area of Science:
- Cardiology
- Nuclear Cardiology
- Interventional Cardiology
Background:
- Exercise-induced myocardial ischemia can affect the right ventricle.
- Thallium-201 (TI-201) myocardial scintiscan is a diagnostic tool for assessing myocardial perfusion.
Observation:
- A patient presented with symptoms suggestive of exercise-induced right ventricular ischemia.
- Stress TI-201 myocardial scintiscan revealed evidence of ischemia.
Findings:
- Cardiac catheterization identified a subtotal occlusion in the proximal right coronary artery.
- Successful percutaneous transluminal coronary angioplasty (PTCA) was performed.
- Post-PTCA, repeat stress TI-201 scintiscan showed normalization of myocardial perfusion.
Implications:
- PTCA is an effective treatment for right coronary artery occlusion causing right ventricular ischemia.
- Stress TI-201 scintiscan can effectively monitor treatment outcomes for coronary artery interventions.
- This case highlights the importance of evaluating right ventricular ischemia in appropriate clinical contexts.
Abstract:
We present a patient with exercise induced right ventricular ischemia demonstrated on stress TI-201 myocardial scintiscan. The patient underwent cardiac catheterization, and subtotal occlusion was found at the proximal right coronary artery. Repeat stress TI-201 scan became normal following the successful percutaneous transluminal coronary angioplasty.