Abstract: A computer-implemented method and apparatus is provided for workflow configuration and execution in medical imaging. One method embodiment comprises the steps of creating and storing a workflow template (the workflow template comprising a standard form for entering data and activities), filling out the workflow template with data and a sequence of activities, and executing the sequence of activities according to the workflow template.

Abstract: A gamma camera system is provided for obtaining a distribution image (i.e. a reconstruction and/or multiplanar reconstruction image) of a radioisotope injected into an object by dynamic study on the basis of .gamma.-rays emitted from the radioisotope. The system comprises a two-dimensional detector for detecting the .gamma.-rays, the detector being repeatedly rotated around the object. There are provided an element for forming image data of a reference image and the distribution image on the basis of detected signals from the detector, an element for obtaining a change in quantity of the .gamma.-rays every one rotation of detector, an element for specifying one of the plurality of rotations, the specified rotation corresponding to a maximum number of the .gamma.-rays, and an element for displaying the reference image using the reference image data corresponding to the specified one rotation.

Abstract: In a digital scintillation camera system, image data representing an radioisotope distribution is detected by a scintillation camera and is then digitized and converted to a video signal. The video signal is processed in a video imager to produce a diagnostic image on a film. A count-to-grey-level converter is arranged to convert a radiation count of diagnostic image data to a grey-level. A count-to-grey-level conversion table is accessed in the converter. The conversion table includes a correction component for obtaining the same count-density characteristics of a film as in a conventional analog scintillation camera system.

Abstract: A scintillation camera apparatus adapted for displaying an image representing a radioisotope distribution within a subject under examination at a substantially constant level in image density during a persistent data acquisition procedure comprises an auxiliary memory for sequentially storing position signals representing detected positions of gamma rays, and an image memory for storing a count representing the frequency of detection of gamma rays in a memory location accessed by position signals. The auxiliary memory has a predetermined capacity, and thus, when the number of the sequentially stored position signals exceeds this memory capacity, the earliest-entered position signals stored therein are made to overflow therefrom. A memory controller accesses a location in the image memory by means of the overflowed position signals and decrements the content at the accessed location.