There has been a great deal of interest in recent years in the development of improved systems for displaying the distribution of radioactive tracers inside the human body. There are a number of diagnostic radioisotope studies that depend on accurate imaging, and physicians have come to rely on some of these studies as a necessary part of a routine workup for certain disorders. Some of the most creative activity has been in the field of dynamic flow studies, i.e. imaging the rapid passage of a bolus of radioisotope through an organ of interest. Dynamic flow studies are of especial interest in studies of highly vascular organs such as the heart, lungs, brain, and kidneys.
Dennis D. Patton,
John E. Cutler,
"Gamma Camera Dynamic Flow Studies on a Single Film by Color Coding of Time," Optical Engineering 9(4), 904140 (1 May 1971). https://doi.org/10.1117/12.7971553