Feasibility study of iterative model reconstruction combined with low tube voltage, low iodine load, and low iodine delivery rate in craniocervical CT angiography
机构：[a]Department of Radiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China[b]Department of Radiology, Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China[c]Department of Radiology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
AIM: To investigate the feasibility of iterative model reconstruction (IMR) combined with low tube voltage, low iodine load, and low iodine deliver rate in craniocervical computed tomography angiography (CTA). MATERIALS AND METHODS: Sixty patients were randomly divided into two groups (n = 30 for each): group A: 120 kVp, 50 ml of iopromide at a flow rate of 5 ml/s; filtered back projection (FBP) reconstruction; group B: 80 kVp, 30 ml of iohexol at 4.5 ml/s; hybrid iterative reconstruction (HIR) for group B1 and IMR for group B2. CT attenuation values, image noise, signalto- noise ratio (SNR), contrast-to-noise ratio (CNR), subjective image quality, effective dose (ED), iodine load, and iodine delivery rate (IDR) were compared. RESULTS: CT attenuation values of the arteries were higher in groups B1 and B2 than group A. The SNR and CNR were higher, while image noisewas lower, for group B2 compared with groups B1 and A. The best subjective image qualitywas obtained with group B2. ED, iodine load, and IDR reduction of 69.6%, 51.4%, 27%, respectively, was obtained in group B compared with group A. CONCLUSION: IMR combined with 80 kVp and 30 ml of iohexol at a flow rate of 4.5 ml/s for craniocervical CTA can reduce ED, iodine load, and IDR, while improving image quality. (C) 2017 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.
基金：
This workwas supported by grant no. SYSD2016088 from
the Suzhou Municipal Science and Technology Guiding
Project and grant no. SDFEYGJ1109 from the Pre-research
Foundation of Second Affiliated Hospital of Soochow
University.
第一作者机构：[a]Department of Radiology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China[b]Department of Radiology, Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
通讯作者：
通讯机构：[*1]Department of Radiology, First Affiliated Hospital of Soochow University, No. 188, Shizi Street, Suzhou, Jiangsu 215006, China
推荐引用方式(GB/T 7714)：
W. Cai,C. Hu,S. Hu,et al.Feasibility study of iterative model reconstruction combined with low tube voltage, low iodine load, and low iodine delivery rate in craniocervical CT angiography[J].CLINICAL RADIOLOGY.2018,73(2):217.e1-217.e6.doi:10.1016/j.crad.2017.09.009.
APA：
W. Cai,C. Hu,S. Hu,X. Wang,J. Gong...&B. Cheng.(2018).Feasibility study of iterative model reconstruction combined with low tube voltage, low iodine load, and low iodine delivery rate in craniocervical CT angiography.CLINICAL RADIOLOGY,73,(2)
MLA：
W. Cai,et al."Feasibility study of iterative model reconstruction combined with low tube voltage, low iodine load, and low iodine delivery rate in craniocervical CT angiography".CLINICAL RADIOLOGY 73..2(2018):217.e1-217.e6
