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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한자기공명의과학회 Investigative Magnetic Resonance Imaging Investigative Magnetic Resonance Imaging 제16권 제3호
- 발행연도
- 2012.1
- 수록면
- 236 - 242 (7page)
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초록· 키워드
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Purpose : The origin of the vertebral artery (VA) is a frequent site of pseudostenosis on contrast-enhanced MRA (CEMRA).
The purpose of this study is to evaluate the relationship between the motion of the aortic arch and pseudostenosis at the origin of the VA.
Materials and Methods: Our study had approval of our institutional review board. 47 patients underwent CT angiography (CTA), CE-MRA, and 3D time-resolved contrast-enhanced MRA (TR-CEMRA) within 6.87±9.89 days (mean±SD). Percent stenosis using the NASCET criteria was measured on CTA and CE-MRA. CTA was used as a reference standard to classify the CE-MRA into pseudostenosis and control group. Pseudostenosis was determined as 50%-99% stenosis observed on CE-MRA but normal to less than 50% stenosis on CTA. Aortic motion (distance between the highest position and lowest position of aortic arch) was measured on TR-CEMRA. Age, route of intravenous contrast media, motion of aortic arch, and normal distal diameter of VA were compared between the two groups.
Results: There were 17 patients and 23 vertebral arteries of pseudostenosis. Patients with pseudostenosis showed more aortic motion (3.61±1.88 vs. 2.05±1.97 mm) and older age (71.29±8.88 vs. 62.32±13.19 year-old). Route of intravenous contrast media and normal distal diameter of VA were not associated with pseudostenosis.
Conclusion: VA origin is a frequent site of pseudostenosis. Older age and more motion of aortic arch are associated with pseudostenosis on CE-MRA.
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참고문헌 (21)
참고문헌 신청
Anzidei M / 2009 / Gadofosvesetenhanced mr angiography of carotid arteries: does steady-state imaging improve accuracy of firstpass imaging? comparison with selective digital
Beneficial effect of carotid endarterectomy in symptomatic patients with highgrade carotid stenosis / 1991 / North american symptomatic carotid endarterectomy trial collabor
Choi HS / 2010 / Accuracy of3 t MR angioraphy in vertebral artery stenosis and coincidencewith other cerebrovascular stenoses / Neuroradiology 52 : 893 ~ 898
Compter A / 2011 / Prevalence and prognosis of asymptomatic vertebral artery origin stenosis in patients with clinically manifest arterial disease / Stroke 42 : 2795 ~ 2800
Cosottini M / 2003 / Contrast-enhanced three-dimensional MR angiography of neck vessels: does dephasing effect alter diagnostic accuracy? / Eur Radiol 13 : 571 ~ 581
Beneficial effect of carotid endarterectomy in symptomatic patients with highgrade carotid stenosis / 1991 / North american symptomatic carotid endarterectomy trial collabor
Choi HS / 2010 / Accuracy of3 t MR angioraphy in vertebral artery stenosis and coincidencewith other cerebrovascular stenoses / Neuroradiology 52 : 893 ~ 898
Compter A / 2011 / Prevalence and prognosis of asymptomatic vertebral artery origin stenosis in patients with clinically manifest arterial disease / Stroke 42 : 2795 ~ 2800
Cosottini M / 2003 / Contrast-enhanced three-dimensional MR angiography of neck vessels: does dephasing effect alter diagnostic accuracy? / Eur Radiol 13 : 571 ~ 581
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