@article{QIMS6468,
author = {Maninderpal Kaur Gill and Anushya Vijayananthan and Gnana Kumar and Kasthoori Jayarani and Kwan-Hoong Ng and Zhonghua Sun},
title = {Use of 100 kV versus 120 kV in computed tomography pulmonary angiography in the detection of pulmonary embolism: effect on radiation dose and image quality},
journal = {Quantitative Imaging in Medicine and Surgery},
volume = {5},
number = {4},
year = {2015},
keywords = {},
abstract = {Objective: To determine the effective radiation dose and image quality resulting from 100 versus 120 kilovoltage (kV) protocols among patients referred for computed tomography pulmonary angiography (CTPA).
Materials and methods: Sixty-six patients with clinical suspicion of pulmonary embolism (PE) were prospectively enrolled. Two CTPA protocols (group A: n=33, 100 kV/115 mAs; group B: n=33, 120 kV/90 mAs) were compared. Two experienced radiologists assessed image quality in terms of diagnostic performance and effect of artefacts. Image quality parameters [CT attenuation, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR)] and effective radiation dose between the two protocols were compared.
Results: The contrast enhancement in central and peripheral pulmonary arteries was significantly higher in group A than in group B (P},
issn = {2223-4306}, url = {https://qims.amegroups.org/article/view/6468}
}