Evaluation of peripheral pulmonary arteries at 80 kV and at 140 kV: dual-energy computed tomography assessment in 51 patients

Journal of Computer Assisted Tomography
Andrei GorgosJacques Remy

Abstract

To compare peripheral pulmonary artery image quality at 80 kVp and 140 kVp in the same patients. Image quality of third-, fourth- and fifth-order arteries was assessed at 80 kV and 140 kV on 1-mm-thick transverse scans, generated from dual-source computed tomography (CT) acquisitions. The mean level of enhancement was significantly higher at 80 kV compared with 140 kV for the third-, fourth-, and fifth-order arteries (P < 0.0001). Despite a higher noise level at 80 kV (P < 0.0001), the signal-to-noise ratio and contrast-to-noise ratio were significantly higher at 80 kV than at 140 kV at the level of third-, fourth-, and fifth-order arteries (P < 0.0001). The mean vascular attenuation, mean signal-to-noise ratio and contrast-to-noise ratio for peripheral arteries were significantly superior at 80 kV in the 3 body mass index categories (P < 0.005). Eighty-kilovolt protocols significantly improve the image quality of peripheral pulmonary arteries on CT angiograms of the chest.

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Citations

Jul 6, 2013·European Radiology·Tilo NiemannMartine Remy-Jardin
May 14, 2010·Journal of Thoracic Imaging·Konstantin NikolaouMaximilian F Reiser
Jul 26, 2011·AJR. American Journal of Roentgenology·Naama R BogotJacob Sosna
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Jul 18, 2015·The British Journal of Radiology·Hongzhen WangXiuhua Yang
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Nov 26, 2010·Journal of Magnetic Resonance Imaging : JMRI·Sebastian LeyJim Wild
Apr 17, 2021·Thrombosis Research·F H J KapteinF A Klok

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