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Evaluation of reperfused myocardial infarction by low-dose multidetector computed tomography using prospective electrocardiography (ECG)-triggering: comparison with magnetic resonance imaging

Authors
 Hye Mi Gweon  ;  Sang Jin Kim  ;  Tae Hoon Kim  ;  Sang Min Lee  ;  Yoo Jin Hong  ;  Se-Joong Rim  ;  Bum Ki Hong  ;  Phil Ki Min  ;  Young Won Yoon  ;  Hyuck Moon Kwon 
Citation
 Yonsei Medical Journal, Vol.51(5) : 683-691, 2010 
Journal Title
 Yonsei Medical Journal 
ISSN
 0513-5796 
Issue Date
2010
Abstract
PURPOSE: To evaluate the potential of prospective electrocardiography (ECG)- gated 64-slice multidetector computed tomography (MDCT) for evaluation of myocardial enhancement, infarct size, and stent patency after percutaneous coronary intervention (PCI) with stenting in patients with myocardial infarction. MATERIALS AND METHODS: Seventeen patients who were admitted with acute myocardial infarction were examined with prospective ECG-gated 64-slice cardiac MDCT and magnetic resonance (MR) imaging after reperfusion using PCI with stenting. Cardiac MDCT was performed with two different phases: arterial and delayed phases. We evaluated the stent patency on the arterial phase, and nonviable myocardium on the delayed phase of computed tomography (CT) image, and they were compared with the results from the delayed MR images. RESULTS: Total mean radiation dose was 7.7 +/- 0.5 mSv on the two phases of CT images. All patients except one showed good patency of the stent at the culprit lesion on the arterial phase CT images. All patients had hyperenhanced area on the delayed phase CT images, which correlated well with those on the delayed phase MR images, with a mean difference of 1.6% (20 +/- 10% vs. 22 +/- 10%, r = 0.935, p = 0.10). Delayed MR images had a better contrast-to-noise ratio (CNR) than delayed CT images (27.1 +/- 17.8% vs. 4.3 +/- 2.1%, p < 0.001). CONCLUSION: Prospective ECG-gated 64-slice MDCT provides the potential to evaluate myocardial viability on delayed phase as well as for stent patency on arterial phase with an acceptable radiation dose after PCI with stenting in patients with myocardial infarction
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DOI
10.3349/ymj.2010.51.5.683
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
권혁문(Kwon, Hyuck Moon) ORCID logo https://orcid.org/0000-0001-9901-5015
김상진(Kim, Sang Jin)
김태훈(Kim, Tae Hoon) ORCID logo https://orcid.org/0000-0003-3598-2529
민필기(Min, Pil Ki) ORCID logo https://orcid.org/0000-0001-7033-7651
윤영원(Yoon, Young Won) ORCID logo https://orcid.org/0000-0002-0907-0350
이상민(Lee, Sang Min)
임세중(Rim, Se Joong) ORCID logo https://orcid.org/0000-0002-7631-5581
홍범기(Hong, Bum Kee) ORCID logo https://orcid.org/0000-0002-6456-0184
홍유진(Hong, Yoo Jin) ORCID logo https://orcid.org/0000-0002-7276-0944
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/101471
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