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Radionuclide Computed Tomography of the Body Using Routine Radiopharmaceuticals. II. Clinical Applications

Baylor College of Medicine, and St. Luke's Episcopal-Texas Children's Hospitals, Houston, Texas

Correspondence: For reprints contact: John A. Burdine, Nuclear Medicine Sec., Dept. of Radiology, Baylor College of Medicine, Houston, TX 77030.

ABSTRACT

A whole-body computed tomography system for single-photon emitters was used to investigate the clinical utility of this imaging modality. We have explored its application in brain, lung, liver, kidney, cardiac, bone, and gallium imaging in over 200 patients. Brain images demonstrated better lesion contrast than that in standard scintiphotos. Images of the lung and liver showed radionuclide distribution that was not readily apparent in standard scintiphotos. Moderate or strongly positive pyrophosphate myocardial images demonstrate the potential for infarct quantitation. ECG-gated cardiac blood-pool images in cross section, displayed in cine formate, permit evaluation of segmental motion of the free and septal walls of both ventricles. These results suggest significant clinical potential for this imaging modality using standard radiopharmaceuticals, but some increase in system sensitivity will likely be necessary to realize the full benefit of the technique.