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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한자기공명의과학회 Investigative Magnetic Resonance Imaging Investigative Magnetic Resonance Imaging 제22권 제2호
- 발행연도
- 2018.1
- 수록면
- 94 - 101 (8page)
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초록· 키워드
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Purpose: To determine the value of the appearance of the high signal intensity halo sign for detecting carotid intraplaque hemorrhage (IPH) on maximum intensity projection (MIP) of time-of-flight (TOF) MR angiography (MRA), based on high signal intensity on magnetization-prepared rapid acquisition with gradient-echo (MPRAGE) sequencing. Materials and Methods: A total of 78 carotid arteries in 65 patients with magnetization- prepared rapid acquisition gradient-echo (MPRAGE) positive on carotid plaque MR imaging were included in this study. High-resolution MR imaging was performed on a 3.0-T scanner prior to carotid endarterectomy or carotid artery stenting. Fast spin-echo T1- and T2-weighted axial imaging, TOF, and MPRAGE sequences were obtained. Carotid plaques with high signal intensity on MPRAGE > 200% that of adjacent muscle on at least two consecutive slices were defined as showing IPH. Halo sign of high signal intensity around the carotid artery was found on MIP from TOF MRA. Continuous and categorical variables were compared among groups using the Mann-Whitney test and Fisher’s exact tests. Results: Of these 78 carotid arteries, 53 appeared as a halo sign on the TOF MRA. The total IPH volume of patients with a positive halo sign was significantly higher than that of patients without a halo sign (75.0 ± 86.8 vs. 16.3 ± 18.2, P = 0.001). The maximum IPH axial wall area in patients with a positive halo sign was significantly higher than that of patients without a halo sign (11.3 ± 9.9 vs. 3.7 ± 3.6, P = 0.000). Conclusion: High signal intensity halo of IPH on MIP of TOF MRA is associated with total volume and maximal axial wall area of IPH.
목차
등록된 정보가 없습니다.
참고문헌 (19)
참고문헌 신청
Yamada K / 2012 / Quantitative evaluation of high intensity signal on MIP images of carotid atherosclerotic plaques from routine TOF-MRA reveals elevated volumes of intraplaque hemorrhage and lipid rich necrotic core / J Cardiovasc Magn Reson 14:81
Sun J / 2012 / Sustained acceleration in carotid atherosclerotic plaque progression with intraplaque hemorrhage: a long-term time course study / JACC Cardiovasc Imaging 5:798~804
Saam T / 2013 / Meta-analysis and systematic review of the predictive value of carotid plaque hemorrhage on cerebrovascular events by magnetic resonance imaging / J Am Coll Cardiol 62:1081~1091
Hosseini AA / 2017 / Magnetic resonance imaging plaque hemorrhage for risk stratification in carotid artery disease with moderate risk under current medical therapy / Stroke 48:678~685
Yoon W / 2012 / Safety of protected carotid artery stenting in patients with severe carotid artery stenosis and carotid intraplaque hemorrhage / AJNR Am J Neuroradiol 33:1027~1031
Sun J / 2012 / Sustained acceleration in carotid atherosclerotic plaque progression with intraplaque hemorrhage: a long-term time course study / JACC Cardiovasc Imaging 5:798~804
Saam T / 2013 / Meta-analysis and systematic review of the predictive value of carotid plaque hemorrhage on cerebrovascular events by magnetic resonance imaging / J Am Coll Cardiol 62:1081~1091
Hosseini AA / 2017 / Magnetic resonance imaging plaque hemorrhage for risk stratification in carotid artery disease with moderate risk under current medical therapy / Stroke 48:678~685
Yoon W / 2012 / Safety of protected carotid artery stenting in patients with severe carotid artery stenosis and carotid intraplaque hemorrhage / AJNR Am J Neuroradiol 33:1027~1031
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