title: Double-tracer, multiple-organ transaxial emission computed tomography: improved localization and characterization of radiotracer distributions.
abstract: 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.
mesh_terms: D000038:Abscess / Q000000981:diagnostic imaging; D000818:Animals; D004285:Dogs; D005710:Gallium Radioisotopes; D007674:Kidney Diseases / Q000000981:diagnostic imaging; D010019:Osteomyelitis / Q000000981:diagnostic imaging; D013154:Spleen / Q000000981:diagnostic imaging; D013158:Splenic Diseases / Q000000981:diagnostic imaging; D013667:Technetium; D014055:Tomography, Emission-Computed / Q000379:methods*
chemical_list: D005710:Gallium Radioisotopes; D013667:Technetium