Affiliation:
1. Department of Interventional treatment , Qinhuangdao Municipal No. 1 Hospital, No. 258 Wenhua Road, Qinhuangdao, Hebei Province 066001, P R China
Abstract
AbstractObjectiveTo investigate the application of low tube voltage computer tomography angiography (CTA) in bronchial artery (BA) imaging in hemoptysis patients.MethodsBetween January 2017 and December 2021, 119 patients were studied, including 31 in the 80-kV group, 39 in the 100-kV group and 49 in the control group (120 kV). The CT dose index-volume (CTDIvol) (mGy) and effective dose (ED) (mSv) of each group were comparatively analysed. Image quality evaluation included the signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR) and subjective 5-scores.ResultsStatistically significant differences were noted in CTDIvol, ED, SNR, CNR and image quality scores of the groups (P < 0.05). Comparative analysis showed no statistical difference in CTDIvol, ED and image quality scores between the 80- and 100-kV groups.ConclusionLow tube voltage CTA is useful in BA imaging for hemoptysis patients. Tube voltages of 100 kV have better image quality and lower radiation dose.
Funder
Qinhuangdao Science-Technology Support Projects of China
Publisher
Oxford University Press (OUP)
Subject
Public Health, Environmental and Occupational Health,Radiology, Nuclear Medicine and imaging,General Medicine,Radiation,Radiological and Ultrasound Technology