title: Characterization of an intravenously injected bolus.
abstract: A study of some parameters affecting the time activity histogram of an intravenous bolus injection of radioactivity was performed. A scoring system for bolus compactness was attempted. A score of 2 and above was considered to be a satisfactory bolus. Volumes less than 1 ml tended to result in a satisfactory bolus. The nature of the radiopharmaceutical injected, different injecters and age of the patient did not affect the score. Thyrotoxic patients gave the best bolus score.
mesh_terms: D000293:Adolescent; D000328:Adult; D006439:Hemodynamics; D006801:Humans; D007275:Injections, Intravenous; D008875:Middle Aged; D011849:Radioactive Tracers; D011868:Radioisotopes / Q000008:administration & dosage*
chemical_list: D011849:Radioactive Tracers; D011868:Radioisotopes