Impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children

Abstract This study aimed to evaluate the imaging quality of head and neck computed tomographic angiography (CTA) in pediatric patients at a lowered radiation dose by combining an iterative model reconstruction (IMR) with low voltage scanning. Eighty-three pediatric patients were randomized into two...

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Autores principales:	Bochao Cheng, Haoyang Xing, Du Lei, Yingkun Guo, Gang Ning, Qiyong Gong, Wu Cai
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/15b724526dd44a92b93c421e21c31d80
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spelling	oai:doaj.org-article:15b724526dd44a92b93c421e21c31d802021-12-02T11:40:25ZImpact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children10.1038/s41598-018-30300-42045-2322https://doaj.org/article/15b724526dd44a92b93c421e21c31d802018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30300-4https://doaj.org/toc/2045-2322Abstract This study aimed to evaluate the imaging quality of head and neck computed tomographic angiography (CTA) in pediatric patients at a lowered radiation dose by combining an iterative model reconstruction (IMR) with low voltage scanning. Eighty-three pediatric patients were randomized into two groups as follows: Group A (n = 42), 100 kV/50 ml contrast media (CM), using filtered back projection (FBP); and Group B (n = 41), 80 kV/30 ml CM, using IMR. The enhanced CT value of the arteries, the image noise, the signal-to-noise ratio (SNR)/contrast-to-noise ratio (CNR), the image quality, the effective radiation dose (ED) and the iodine intake were compared between the two groups. The mean ED and iodine intake of group B were reduced by 69.8% and 40.0%, respectively, compared to those of group A. The mean CT values of the arteries in group B were higher than those in group A (p < 0.01), whereas the image noise of group B was lower than that of group A (p < 0.01). Group B exhibited a better image quality and a higher mean CNR/SNR than that of group A (p < 0.01). Compared to FBP, IMR in head and neck CTA enables a significant reduction in the radiation dose while preserving the diagnostic image quality. Thus, IMR, combined with low tube voltage scanning, provided an excellent solution for improving the image quality of craniocervical vessels in children.Bochao ChengHaoyang XingDu LeiYingkun GuoGang NingQiyong GongWu CaiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bochao Cheng Haoyang Xing Du Lei Yingkun Guo Gang Ning Qiyong Gong Wu Cai Impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children
description	Abstract This study aimed to evaluate the imaging quality of head and neck computed tomographic angiography (CTA) in pediatric patients at a lowered radiation dose by combining an iterative model reconstruction (IMR) with low voltage scanning. Eighty-three pediatric patients were randomized into two groups as follows: Group A (n = 42), 100 kV/50 ml contrast media (CM), using filtered back projection (FBP); and Group B (n = 41), 80 kV/30 ml CM, using IMR. The enhanced CT value of the arteries, the image noise, the signal-to-noise ratio (SNR)/contrast-to-noise ratio (CNR), the image quality, the effective radiation dose (ED) and the iodine intake were compared between the two groups. The mean ED and iodine intake of group B were reduced by 69.8% and 40.0%, respectively, compared to those of group A. The mean CT values of the arteries in group B were higher than those in group A (p < 0.01), whereas the image noise of group B was lower than that of group A (p < 0.01). Group B exhibited a better image quality and a higher mean CNR/SNR than that of group A (p < 0.01). Compared to FBP, IMR in head and neck CTA enables a significant reduction in the radiation dose while preserving the diagnostic image quality. Thus, IMR, combined with low tube voltage scanning, provided an excellent solution for improving the image quality of craniocervical vessels in children.
format	article
author	Bochao Cheng Haoyang Xing Du Lei Yingkun Guo Gang Ning Qiyong Gong Wu Cai
author_facet	Bochao Cheng Haoyang Xing Du Lei Yingkun Guo Gang Ning Qiyong Gong Wu Cai
author_sort	Bochao Cheng
title	Impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children
title_short	Impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children
title_full	Impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children
title_fullStr	Impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children
title_full_unstemmed	Impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children
title_sort	impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck cta in children
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/15b724526dd44a92b93c421e21c31d80
work_keys_str_mv	AT bochaocheng impactofiterativemodelreconstructioncombinedwithdosereductionontheimagequalityofheadandneckctainchildren AT haoyangxing impactofiterativemodelreconstructioncombinedwithdosereductionontheimagequalityofheadandneckctainchildren AT dulei impactofiterativemodelreconstructioncombinedwithdosereductionontheimagequalityofheadandneckctainchildren AT yingkunguo impactofiterativemodelreconstructioncombinedwithdosereductionontheimagequalityofheadandneckctainchildren AT gangning impactofiterativemodelreconstructioncombinedwithdosereductionontheimagequalityofheadandneckctainchildren AT qiyonggong impactofiterativemodelreconstructioncombinedwithdosereductionontheimagequalityofheadandneckctainchildren AT wucai impactofiterativemodelreconstructioncombinedwithdosereductionontheimagequalityofheadandneckctainchildren
_version_	1718395624949284864

Impact of iterative model reconstruction combined with dose reduction on the image quality of head and neck CTA in children

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