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Lung-Heart Ratio in Stress Thallium Myocardial Perfusion Imaging in Patients With a History of a Previous Pneumonectomy

TUROGLU, H. TURGUT M.D.; AKISIK, M. FATIH M.D.; NADDAF, SLEIMAN M.D.; OMAR, WALID S. M.D.; ABDEL-DAYEM, HUSSEIN M. M.D.

Original Articles

Increased Tl-201 lung-heart ratio after treadmill exercise or pharmacologic stress is an indicator of left ventricular dysfunction. After pneumonectomy, it is not reliable because of increased pulmonary circulation in the remaining lung. The authors present an example of normal stress TI-201 myocardial perfusion imaging with an increased lung-heart ratio of TI-201 uptake.

From the Nuclear Medicine Section, Department of Radiology, Saint Vincent's Hospital and Medical Center of New York and New York Medical College, Valhalla, New York

Received for publication February 27, 1996; accepted April 26, 1996.

Reprint requests: Hussein M. Abdel-Dayem, Professor of Radiology, New York Medical College, Valhalla, New York and Director of Nuclear Medicine Service, Saint Vincent's Hospital and Medical Center of New York, 153 West Eleventh Street, New York, New York 10011.

© Lippincott-Raven Publishers