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The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study

Aim: To investigate the feasibility of low-concentration contrast (270 mg/ml) together with low tube voltage (80 kV) and adaptive iterative dose reduction (AIDR)-3D reconstruction in liver computed tomography (CT) perfusion imaging. Method: A total of 15 healthy New Zealand rabbits received two CT s...

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Autores principales: Pan, Yuning, Song, Aiqin, Bu, Shizhong, Chen, Zhaoqian, Huang, Qiuli, Li, Aijing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Portland Press Ltd. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6435459/
https://www.ncbi.nlm.nih.gov/pubmed/29208767
http://dx.doi.org/10.1042/BSR20170977
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author Pan, Yuning
Song, Aiqin
Bu, Shizhong
Chen, Zhaoqian
Huang, Qiuli
Li, Aijing
author_facet Pan, Yuning
Song, Aiqin
Bu, Shizhong
Chen, Zhaoqian
Huang, Qiuli
Li, Aijing
author_sort Pan, Yuning
collection PubMed
description Aim: To investigate the feasibility of low-concentration contrast (270 mg/ml) together with low tube voltage (80 kV) and adaptive iterative dose reduction (AIDR)-3D reconstruction in liver computed tomography (CT) perfusion imaging. Method: A total of 15 healthy New Zealand rabbits received two CT scans each. The first scan (control) was acquired at 100 kV and 100 mA with iopromide (370 mg/ml), while the second scan (experimental) was acquired at 80 kV and 100 mA with iodixanol (270 mg/ml) 24 h after the first scan. The obtained images were reconstructed with filtered back projection (FBP) and AIDR-3D in the control and experimental groups respectively. The perfusion parameters (hepatic artery perfusion [HAP], portal vein perfusion [PVP], hepatic perfusion index [HPI], and total liver perfusion [TLP]) and image quality (image quality score, average CT value of abdomen aorta, signal-to-noise ratio [SNR], contrast-to-noise ratio [CNR], and figure of merit [FOM]) were compared using a paired t-test or Mann–Whitney U test between the two groups, when appropriate. The effective radiation dose and iodine intake were also recorded and compared. Results: With the exception of the FOM criteria, the image quality and perfusion parameters were not significantly different between the two groups. The effective radiation dose and iodine intake were 38.79% and 27.03% lower respectively, in the experimental group. Conclusion: Low-concentration contrast (iodixanol, 270 mg/ml) together with low tube voltage (80 kV) and AIDR-3D reconstruction help to reduce radiation dose and iodine intake without compromising perfusion parameters and image quality in liver CT perfusion imaging.
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spelling pubmed-64354592019-04-12 The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study Pan, Yuning Song, Aiqin Bu, Shizhong Chen, Zhaoqian Huang, Qiuli Li, Aijing Biosci Rep Research Articles Aim: To investigate the feasibility of low-concentration contrast (270 mg/ml) together with low tube voltage (80 kV) and adaptive iterative dose reduction (AIDR)-3D reconstruction in liver computed tomography (CT) perfusion imaging. Method: A total of 15 healthy New Zealand rabbits received two CT scans each. The first scan (control) was acquired at 100 kV and 100 mA with iopromide (370 mg/ml), while the second scan (experimental) was acquired at 80 kV and 100 mA with iodixanol (270 mg/ml) 24 h after the first scan. The obtained images were reconstructed with filtered back projection (FBP) and AIDR-3D in the control and experimental groups respectively. The perfusion parameters (hepatic artery perfusion [HAP], portal vein perfusion [PVP], hepatic perfusion index [HPI], and total liver perfusion [TLP]) and image quality (image quality score, average CT value of abdomen aorta, signal-to-noise ratio [SNR], contrast-to-noise ratio [CNR], and figure of merit [FOM]) were compared using a paired t-test or Mann–Whitney U test between the two groups, when appropriate. The effective radiation dose and iodine intake were also recorded and compared. Results: With the exception of the FOM criteria, the image quality and perfusion parameters were not significantly different between the two groups. The effective radiation dose and iodine intake were 38.79% and 27.03% lower respectively, in the experimental group. Conclusion: Low-concentration contrast (iodixanol, 270 mg/ml) together with low tube voltage (80 kV) and AIDR-3D reconstruction help to reduce radiation dose and iodine intake without compromising perfusion parameters and image quality in liver CT perfusion imaging. Portland Press Ltd. 2018-01-10 /pmc/articles/PMC6435459/ /pubmed/29208767 http://dx.doi.org/10.1042/BSR20170977 Text en © 2018 The Author(s). http://creativecommons.org/licenses/by/4.0/This is an open access article published by Portland Press Limited on behalf of the Biochemical Society and distributed under the Creative Commons Attribution License 4.0 (CC BY) (http://creativecommons.org/licenses/by/4.0/) .
spellingShingle Research Articles
Pan, Yuning
Song, Aiqin
Bu, Shizhong
Chen, Zhaoqian
Huang, Qiuli
Li, Aijing
The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study
title The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study
title_full The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study
title_fullStr The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study
title_full_unstemmed The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study
title_short The feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study
title_sort feasibility of low-concentration contrast and low tube voltage in computed tomography perfusion imaging: an animal study
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6435459/
https://www.ncbi.nlm.nih.gov/pubmed/29208767
http://dx.doi.org/10.1042/BSR20170977
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