COMPARISON OF GA-67 CITRATE IMAGES OBTAINED WITH RECTILINEAR SCANNER AND LARGE-FIELD ANGER CAMERA

  • 1 January 1977
    • journal article
    • research article
    • Vol. 18  (6) , 538-541
Abstract
Two methods for 67Ga citrate imaging were compared in 20 cancer patients. Scans were performed using approximately equal procedure time with 2 instruments: a dual 5 in. rectilinear scanner with medium energy collimator, with a single window spanning the 93 keV and 185 keV spectral peaks; and a large-field (15 in. diameter) Anger camera equipped with moving table, medium energy collimator and 3 windows covering the 93 keV, 185 keV and 300 keV peaks separately. Sixteen abnormal sites and 24 normal sites were selected for comparison. Each site was evaluated by 4 physicians experienced in interpreting 67Ga citrate images. The observers performed significantly better using the images obtained with the large-field camera (3 windows) than with the dual 5 in. scanner (single window).

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