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The Journal of Nuclear Medicine Vol. 36 No. 6 1037-1039
© 1995 by Society of Nuclear Medicine
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Identification of Viable Myocardium with Technetium-99m-MIBI Infusion

D.F. Worsley, A.Y. Fung, J. Jue and R.J. Burns

Divisions of Nuclear Medicine and Cardiology, Vancouver Hospital and Health Sciences Center, Vancouver, Canada;
and the Division of Cardiology, The Toronto Hospital, Toronto, Canada

Correspondence: For correspondence contact: D.F. Worsley, Division of Nuclear Medicine, Vancouver Hospital and Health Sciences Center, 855 West 12th Ave., Vancouver, BC, V5Z 1M9.

Correspondence: For reprints contact: A.Y. Fung, Division of Cardiology, Vancouver Hospital and Health Sciences Center, 855 West 12th Ave., Vancouver, BC, V5Z 1M9.

ABSTRACT

A 50-yr-old man was evaluated using standard stress/rest 99mTc-methoxyisobutylisonitrile (MIBI) perfusion imaging, rest thallium infusion imaging and rest 99mTc-MIBI infusion imaging prior to revascularization. Resting 99mTc-MIBI infusion imaging demonstrated hibernating myocardium which was not detected with standard stress/rest 99mTc-MIBI imaging. The implication from this observation is that resting 99mTc-MIBI infusion scintigraphy can provide useful information when evaluating patients for the presence of hibernating myocardium. A prospective comparison of resting 99mTc-MIBI infusion scintigraphy with other noninvasive techniques used to identify viable myocardium may be warranted.

Key Words: technetium-99m-MIBI • myocardial viability • myocardial perfusion • single-photon emission computerized tomography






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Copyright © 1995 by the Society of Nuclear Medicine.