Effect of Inspiration on Bolus Injection

Abstract

Adequate compact intravenous (i.v.) bolus injections of radiopharmaceuticals are essential for many quantitative radionuclide studies. Techniques have been described to obtain optimum bolus injections. The effect of inspiration on i.v. bolus injections was studied in 36 individuals. A slow, deep inspiration just prior to the arrival of the bolus within the superior vena cava significantly improved the quality of the bolus.