Cardiac Performance, Dr. D. Penney

Nuclear Imaging of the Heart: (continued..):

Abnormal Thallium-

This patient is a 70-year-old male who reports crushing chest pain while shoveling snow. He was transported to the ER with concern for significant coronary artery disease. He underwent a stress- thallium examination in conjunction with a treadmill exercise test.

The image obtained during vigorous exercise showed abnormally decreased perfusion to the lateral wall and apex. This represents coronary artery ischemia. The rest image showed improvement in perfusion in these areas. Thus, blood flow during stress is insufficient (defect), but is sufficient in the resting state.

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