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Association between duration of coronary occlusion and high-intensity signal on T1-weighted magnetic resonance imaging among patients with angiographic total occlusion

OBJECTIVES: To evaluate the association between duration of the coronary occlusion and high-intensity signal (HIS) on noncontrast T1-weighted imaging using a 1.5-T magnetic resonance imager among patients with angiographic coronary total occlusion. METHODS: The signal intensity of the coronary targe...

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Autores principales: Matsumoto, Kenji, Ehara, Shoichi, Hasegawa, Takao, Sakaguchi, Mikumo, Shimada, Kenei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5544795/
https://www.ncbi.nlm.nih.gov/pubmed/28155111
http://dx.doi.org/10.1007/s00330-016-4672-0
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author Matsumoto, Kenji
Ehara, Shoichi
Hasegawa, Takao
Sakaguchi, Mikumo
Shimada, Kenei
author_facet Matsumoto, Kenji
Ehara, Shoichi
Hasegawa, Takao
Sakaguchi, Mikumo
Shimada, Kenei
author_sort Matsumoto, Kenji
collection PubMed
description OBJECTIVES: To evaluate the association between duration of the coronary occlusion and high-intensity signal (HIS) on noncontrast T1-weighted imaging using a 1.5-T magnetic resonance imager among patients with angiographic coronary total occlusion. METHODS: The signal intensity of the coronary target area divided by the signal intensity of the left ventricular muscle near the target area at each site (TMR) was measured. Areas with a TMR >1.0 were defined as HIS. Thirty five lesions from 33 patients were divided into the following three groups: subacute occlusion (up to 3 months; n = 7), short-duration chronic total occlusion (SD-CTO: 3–6 months; n = 9) and long-duration CTO (LD-CTO: ≥6 months; n = 19). RESULTS: All subacute occlusion lesions showed a HIS within the occlusion site. Among patients with CTO, the frequency of a HIS within the occlusion site was significantly higher in SD-CTO than in LD-CTO lesions (p = 0.013). In multivariate analyses, only an occlusion duration of less than 6 months was an independent factor associated with the presence of HIS (odds ratio 7.6, 95% CI 1.1–54.5; p = 0.044). CONCLUSIONS: The presence of a HIS in the occlusion site was associated more with SD-CTO than with LD-CTO among patients with CTO. KEY POINTS: • All subacute occlusion lesions show a high-intensity signal on T1-weighted imaging. • HIS within occlusion sites is associated with subacute or short-duration total occlusion. • T1-weighted imaging for coronary total occlusion may be useful for intervention strategy.
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spelling pubmed-55447952017-08-18 Association between duration of coronary occlusion and high-intensity signal on T1-weighted magnetic resonance imaging among patients with angiographic total occlusion Matsumoto, Kenji Ehara, Shoichi Hasegawa, Takao Sakaguchi, Mikumo Shimada, Kenei Eur Radiol Cardiac OBJECTIVES: To evaluate the association between duration of the coronary occlusion and high-intensity signal (HIS) on noncontrast T1-weighted imaging using a 1.5-T magnetic resonance imager among patients with angiographic coronary total occlusion. METHODS: The signal intensity of the coronary target area divided by the signal intensity of the left ventricular muscle near the target area at each site (TMR) was measured. Areas with a TMR >1.0 were defined as HIS. Thirty five lesions from 33 patients were divided into the following three groups: subacute occlusion (up to 3 months; n = 7), short-duration chronic total occlusion (SD-CTO: 3–6 months; n = 9) and long-duration CTO (LD-CTO: ≥6 months; n = 19). RESULTS: All subacute occlusion lesions showed a HIS within the occlusion site. Among patients with CTO, the frequency of a HIS within the occlusion site was significantly higher in SD-CTO than in LD-CTO lesions (p = 0.013). In multivariate analyses, only an occlusion duration of less than 6 months was an independent factor associated with the presence of HIS (odds ratio 7.6, 95% CI 1.1–54.5; p = 0.044). CONCLUSIONS: The presence of a HIS in the occlusion site was associated more with SD-CTO than with LD-CTO among patients with CTO. KEY POINTS: • All subacute occlusion lesions show a high-intensity signal on T1-weighted imaging. • HIS within occlusion sites is associated with subacute or short-duration total occlusion. • T1-weighted imaging for coronary total occlusion may be useful for intervention strategy. Springer Berlin Heidelberg 2017-02-02 2017 /pmc/articles/PMC5544795/ /pubmed/28155111 http://dx.doi.org/10.1007/s00330-016-4672-0 Text en © The Author(s) 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Cardiac
Matsumoto, Kenji
Ehara, Shoichi
Hasegawa, Takao
Sakaguchi, Mikumo
Shimada, Kenei
Association between duration of coronary occlusion and high-intensity signal on T1-weighted magnetic resonance imaging among patients with angiographic total occlusion
title Association between duration of coronary occlusion and high-intensity signal on T1-weighted magnetic resonance imaging among patients with angiographic total occlusion
title_full Association between duration of coronary occlusion and high-intensity signal on T1-weighted magnetic resonance imaging among patients with angiographic total occlusion
title_fullStr Association between duration of coronary occlusion and high-intensity signal on T1-weighted magnetic resonance imaging among patients with angiographic total occlusion
title_full_unstemmed Association between duration of coronary occlusion and high-intensity signal on T1-weighted magnetic resonance imaging among patients with angiographic total occlusion
title_short Association between duration of coronary occlusion and high-intensity signal on T1-weighted magnetic resonance imaging among patients with angiographic total occlusion
title_sort association between duration of coronary occlusion and high-intensity signal on t1-weighted magnetic resonance imaging among patients with angiographic total occlusion
topic Cardiac
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5544795/
https://www.ncbi.nlm.nih.gov/pubmed/28155111
http://dx.doi.org/10.1007/s00330-016-4672-0
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