Equal-time imaging for bone scanning refers to the technique in which

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Commonly, multiple individual images (or spot views) are taken for an equal amount of time.Equal-time technique allows comparison of the film density in one image with that in another image, because the exposure is made for equal amounts of time.This method is effective as long as adequate statistics are achieved.First, one area of the body (e.g., the anterior or posterior view of the chest) is imaged for a preset number of counts and the time is recorded.Between 400,000 and 600,000 counts are accumulated for a standard-field camera, and between 500,000 and 1 million counts for a large-crystal camera.All subsequent images are taken for the same interval that had been recorded for the first image.

Equal-Time Imaging for Bone Scanning Refers to the Technique in Which