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Thin-slice Free-breathing Pseudo-golden-angle Radial Stack-of-stars with Gating and Tracking T(1)-weighted Acquisition: An Efficient Gadoxetic Acid-enhanced Hepatobiliary-phase Imaging Alternative for Patients with Unstable Breath Holding
PURPOSE: To compare four free-breathing scan techniques for gadoxetic acid-enhanced hepatobiliary phase imaging with conventional breath-hold scans. MATERIALS AND METHODS: Gadoxetic acid-enhanced hepatobiliary phase imaging with six image acquisition sets performed in 50 patients. Image acquisition...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Japanese Society for Magnetic Resonance in Medicine
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6326769/ https://www.ncbi.nlm.nih.gov/pubmed/29526882 http://dx.doi.org/10.2463/mrms.mp.2017-0173 |
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author | Kajita, Kimihiro Goshima, Satoshi Noda, Yoshifumi Kawada, Hiroshi Kawai, Nobuyuki Okuaki, Tomoyuki Honda, Masatoshi Matsuo, Masayuki |
author_facet | Kajita, Kimihiro Goshima, Satoshi Noda, Yoshifumi Kawada, Hiroshi Kawai, Nobuyuki Okuaki, Tomoyuki Honda, Masatoshi Matsuo, Masayuki |
author_sort | Kajita, Kimihiro |
collection | PubMed |
description | PURPOSE: To compare four free-breathing scan techniques for gadoxetic acid-enhanced hepatobiliary phase imaging with conventional breath-hold scans. MATERIALS AND METHODS: Gadoxetic acid-enhanced hepatobiliary phase imaging with six image acquisition sets performed in 50 patients. Image acquisition sets included fat-suppressed 3D T(1)-weighted turbo field echo with free-breathing pseudo-golden-angle radial stack-of-stars (FBRS) acquisition, FBRS with track (FBRS(T)), FBRS with gate and track (FBRS(G&T)), thin-slice FBRS with gate and track (thin-slice FBRS(G&T)), free-breathing Cartesian acquisition (Cartesian(FB)), and breath-hold Cartesian acquisition (Cartesian(BH)). Signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and image quality compared to the six-image acquisition sets. RESULTS: Signal-to-noise ratio and CNR were significantly higher in FBRS, FBRS(T), FBRS(G&T), and thin-slice FBRS(G&T) than in Cartesian(FB) and Cartesian(BH) (P < 0.001). Based on sharpness, motion artifacts, visibility of intrahepatic vessels, and overall image quality, thin-slice FBRS(G&T) had the highest image quality followed by Cartesian(BH) and FBRS(G&T) (P < 0.001). Severe motion artifacts were observed in 25 patients in Cartesian(FB) and three patients in Cartesian(BH), whereas image quality remained above the acceptable range in FBRS(G&T), FBRS(T), FBRS, and thin-slice FBRS(G&T) in all cases. CONCLUSION: Thin-slice FBRS(G&T) demonstrated excellent image quality compared with conventional Cartesian(BH) in gadoxetic acid-enhanced hepatobiliary phase imaging. It can be apply to supplemental sequences of patients with unstable breath holding. |
format | Online Article Text |
id | pubmed-6326769 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Japanese Society for Magnetic Resonance in Medicine |
record_format | MEDLINE/PubMed |
spelling | pubmed-63267692019-01-11 Thin-slice Free-breathing Pseudo-golden-angle Radial Stack-of-stars with Gating and Tracking T(1)-weighted Acquisition: An Efficient Gadoxetic Acid-enhanced Hepatobiliary-phase Imaging Alternative for Patients with Unstable Breath Holding Kajita, Kimihiro Goshima, Satoshi Noda, Yoshifumi Kawada, Hiroshi Kawai, Nobuyuki Okuaki, Tomoyuki Honda, Masatoshi Matsuo, Masayuki Magn Reson Med Sci Major Paper PURPOSE: To compare four free-breathing scan techniques for gadoxetic acid-enhanced hepatobiliary phase imaging with conventional breath-hold scans. MATERIALS AND METHODS: Gadoxetic acid-enhanced hepatobiliary phase imaging with six image acquisition sets performed in 50 patients. Image acquisition sets included fat-suppressed 3D T(1)-weighted turbo field echo with free-breathing pseudo-golden-angle radial stack-of-stars (FBRS) acquisition, FBRS with track (FBRS(T)), FBRS with gate and track (FBRS(G&T)), thin-slice FBRS with gate and track (thin-slice FBRS(G&T)), free-breathing Cartesian acquisition (Cartesian(FB)), and breath-hold Cartesian acquisition (Cartesian(BH)). Signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and image quality compared to the six-image acquisition sets. RESULTS: Signal-to-noise ratio and CNR were significantly higher in FBRS, FBRS(T), FBRS(G&T), and thin-slice FBRS(G&T) than in Cartesian(FB) and Cartesian(BH) (P < 0.001). Based on sharpness, motion artifacts, visibility of intrahepatic vessels, and overall image quality, thin-slice FBRS(G&T) had the highest image quality followed by Cartesian(BH) and FBRS(G&T) (P < 0.001). Severe motion artifacts were observed in 25 patients in Cartesian(FB) and three patients in Cartesian(BH), whereas image quality remained above the acceptable range in FBRS(G&T), FBRS(T), FBRS, and thin-slice FBRS(G&T) in all cases. CONCLUSION: Thin-slice FBRS(G&T) demonstrated excellent image quality compared with conventional Cartesian(BH) in gadoxetic acid-enhanced hepatobiliary phase imaging. It can be apply to supplemental sequences of patients with unstable breath holding. Japanese Society for Magnetic Resonance in Medicine 2018-03-09 /pmc/articles/PMC6326769/ /pubmed/29526882 http://dx.doi.org/10.2463/mrms.mp.2017-0173 Text en © 2018 Japanese Society for Magnetic Resonance in Medicine This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ |
spellingShingle | Major Paper Kajita, Kimihiro Goshima, Satoshi Noda, Yoshifumi Kawada, Hiroshi Kawai, Nobuyuki Okuaki, Tomoyuki Honda, Masatoshi Matsuo, Masayuki Thin-slice Free-breathing Pseudo-golden-angle Radial Stack-of-stars with Gating and Tracking T(1)-weighted Acquisition: An Efficient Gadoxetic Acid-enhanced Hepatobiliary-phase Imaging Alternative for Patients with Unstable Breath Holding |
title | Thin-slice Free-breathing Pseudo-golden-angle Radial Stack-of-stars with Gating and Tracking T(1)-weighted Acquisition: An Efficient Gadoxetic Acid-enhanced Hepatobiliary-phase Imaging Alternative for Patients with Unstable Breath Holding |
title_full | Thin-slice Free-breathing Pseudo-golden-angle Radial Stack-of-stars with Gating and Tracking T(1)-weighted Acquisition: An Efficient Gadoxetic Acid-enhanced Hepatobiliary-phase Imaging Alternative for Patients with Unstable Breath Holding |
title_fullStr | Thin-slice Free-breathing Pseudo-golden-angle Radial Stack-of-stars with Gating and Tracking T(1)-weighted Acquisition: An Efficient Gadoxetic Acid-enhanced Hepatobiliary-phase Imaging Alternative for Patients with Unstable Breath Holding |
title_full_unstemmed | Thin-slice Free-breathing Pseudo-golden-angle Radial Stack-of-stars with Gating and Tracking T(1)-weighted Acquisition: An Efficient Gadoxetic Acid-enhanced Hepatobiliary-phase Imaging Alternative for Patients with Unstable Breath Holding |
title_short | Thin-slice Free-breathing Pseudo-golden-angle Radial Stack-of-stars with Gating and Tracking T(1)-weighted Acquisition: An Efficient Gadoxetic Acid-enhanced Hepatobiliary-phase Imaging Alternative for Patients with Unstable Breath Holding |
title_sort | thin-slice free-breathing pseudo-golden-angle radial stack-of-stars with gating and tracking t(1)-weighted acquisition: an efficient gadoxetic acid-enhanced hepatobiliary-phase imaging alternative for patients with unstable breath holding |
topic | Major Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6326769/ https://www.ncbi.nlm.nih.gov/pubmed/29526882 http://dx.doi.org/10.2463/mrms.mp.2017-0173 |
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