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Case Reports
Computerized double-tracer subtraction scanning with gallium-67 citrate in inflammatory diseases.
- V M Dhawan, J J Sziklas, R P Spencer, and D A Rich.
- J. Nucl. Med. 1978 Dec 1; 19 (12): 1297-300.
AbstractA gallium-67/technetium-99m subtraction technique was used with a variable weighting factor. That is, each image was separately set to 100%. Varying amounts of the Tc-99m images were subtracted from those of Ga-67. A total of 95 patients who had radiogallium scanning for suspected inflammatory disease were studied by the subtraction technique. Thirty of these patients had abnormal Tc-99m pyrophosphate bone scans, while 20 had abnormal radiogallium abdominal foci; 45 had defects in liver, spleen, or kidney images. The subtraction technique with variable weighting was highly successful in enhancing hot-spot visibility, and in providing information as to the anatomic location of the defect.
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