Image Quality and Radiation Dose of Pulmonary CT Angiography Performed Using 100 and 120 kVp

Abstract

Pulmonary CTA can be performed using a tube potential of 100 kVp in patients who weigh less than 100 kg (220 lb). Reducing the tube potential from 120 to 100 kVp results in a 37% reduction in radiation dose without a significant impact on diagnostic image quality.