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The Use of ^99mTc Pertechnetate in Cardiac Scanning

Winston-Salem, N. C.

ABSTRACT

Technetium 99m pertechnetate has been utilized in our laboratory for scanning the cardiac blood pool. The delineation of the heart pool and surrounding vasculature is comparable to that obtained with the standard ¹³¹I compounds now in use. In our hands ^99mTc has the following advantages:

(1) Since we routinely utilize ^99mTc for brain and thyroid scans, it is available, eliminating the purchase and shelf decay of other materials.

(2) Three to 5 mC quantities may be administered with relatively low patient radiation dosage. The associated high count rate permits rapid scanning.

(3) The identification of pericardial effusions is enhanced by the radioactivity in the stomach which in some cases becomes abnormally separated from the cardiac blood pool.

FOOTNOTES

¹ Department of Radiology, Bowman Gray School of Medicine, Winston-Salem, N.C.

² Partially supported by N.I.H. Grant No. CRT-5069