지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Background and Purpose Quantitative magnetic resonance angiography (Q-MRA) enables direct measurement of volume flow rate (VFR) of intracranial arteries. We aimed to evaluate the collateral flows in internal carotid artery (ICA) occlusion with primary collateral pathway via circle of Willis using Q-MRA, and to compare them between patients who recently developed ipsilateral symptomatic ischemia and those who did not.
Methods Between 2012 and 2014, 505 patients underwent Q-MRA in our institution. Among these, 33 patients who had unilateral ICA occlusion with primary collateral pathway were identified, and grouped into asymptomatic patients, stable patients with chronic infarction, and symptomatic patients with acute/subacute infarction. Mean VFR (mVFR) in intracranial arteries was measured and compared between the patients’ groups. Kruskal-Wallis test was used for statistical analysis.
Results Six patients were asymptomatic, fifteen with chronic infarction were stable, and twelve with acute/subacute infarction were symptomatic. The mVFR of ipsilateral middle cerebral artery in symptomatic patients was significantly lower than those in stable or asymptomatic patients (73.7±45.6 mL/min vs. 119.9±36.1 mL/min vs. 121.8±42.0 mL/min; P=0.04). Total sum of the mVFR of ipsilateral anterior, middle, and posterior cerebral arteries was significantly lower in symptomatic patients than those in other groups (229.3±51.3 mL/min vs. 282.0±68.6 mL/min vs. 314.0±44.4 mL/min; P=0.02).
Conclusions Q-MRA could be helpful to demonstrate the difference in the degree of primary collateral flow in ICA occlusion between the patients with recent symptomatic ischemia and those without.
목차
등록된 정보가 없습니다.
참고문헌 (22)
참고문헌 신청
Barber P / 2005 / Imaging of the brain in acute ischaemic stroke: comparison of computed tomography and magnetic resonance diffusion-weighted imaging / J Neurol Neurosurg Ps
Brisman JL / 2012 / Clinical utility of quantitative magnetic res
Conway SA / 2008 / Quantitative magnetic resonance angiography of the cerebrovasculature in physiologic and pathologic states / J Neuroimaging 18 : 34 ~ 37
Gibbs J / 1984 / Evaluation of cerebral perfusion reserve in patients with carotid-artery occlusion / Lancet 323 : 310 ~ 314
Halsey J Jr. / 1988 / Prognosis of acute hemiplegia estimated by transcranial Doppler ultrasonography / Stroke 19 : 648 ~ 649
Brisman JL / 2012 / Clinical utility of quantitative magnetic res
Conway SA / 2008 / Quantitative magnetic resonance angiography of the cerebrovasculature in physiologic and pathologic states / J Neuroimaging 18 : 34 ~ 37
Gibbs J / 1984 / Evaluation of cerebral perfusion reserve in patients with carotid-artery occlusion / Lancet 323 : 310 ~ 314
Halsey J Jr. / 1988 / Prognosis of acute hemiplegia estimated by transcranial Doppler ultrasonography / Stroke 19 : 648 ~ 649
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