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Radiology, Vol 135, 435-438, Copyright © 1980 by Radiological Society of North America

ARTICLES

Double-tracer, multiple-organ transaxial emission computed tomography: improved localization and characterization of radiotracer distributions

BL Holman, TC Hill, RD Lovett, P Shulkin and RE Zimmerman

Transaxial emission computed tomography (ECT) was performed in dogs with experimentally induced abscesses, using 67Ga and several 99mTc- labeled organ-specific radiopharmaceuticals. Superimposition of 99mTc ECT images onto the 67Ga images gave the precise anatomic location of the abnormal foci of 67Ga uptake, correctly localizing a perinephric abscess, a splenic abscess, and a focus of osteomyelitis. This technique also permits further characterization of regions of decreased activity.




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