An interactive program on the PDP-11 for computing organ blood flow from data obtained using the radioactive microsphere technique

An interactive, BASIC-PLUS language program is described for computation of various parameters of blood flow in research animals from data obtained using the radioactive microsphere technique. This program used in conjunction with the PDP-11 computer gives the following output for a variable number of organs studied simultaneously: (1) descriptive statistics on counts per minute; (2) total blood flow to an organ; (3) blood flow to an organ per unit weight; (4) resistance to flow in that organ; (5) total systemic arterial resistance; (6) cardiac output; and (7) percent of cardiac output distributed to each organ. Further, separate outputs can be generated when a series of different isotopes are used in the same animal to study different experimental conditions.