中国医学影像学杂志
中國醫學影像學雜誌
중국의학영상학잡지
CHINESE JOURNAL OF MEDICAL IMAGING
2013年
12期
886-890
,共5页
陈忠华%褚春燕%朱传芳%龚向阳
陳忠華%褚春燕%硃傳芳%龔嚮暘
진충화%저춘연%주전방%공향양
颈动脉狭窄%颈动脉内膜切除术%磁共振成像%液体衰减反转恢复序列%高信号血管征
頸動脈狹窄%頸動脈內膜切除術%磁共振成像%液體衰減反轉恢複序列%高信號血管徵
경동맥협착%경동맥내막절제술%자공진성상%액체쇠감반전회복서렬%고신호혈관정
Carotid stenosis%Endarterectomy,carotid%Magnetic resonance imaging%Fluid attenuated inversion recovery sequence%Hyperintense vessel sign
目的探讨T2-FLAIR序列高信号血管征（HVS）与颈动脉（ICA）狭窄程度的相关性，评估颈动脉内膜剥脱术（CEA）对HVS的影响。资料与方法回顾性分析51例ICA狭窄患者的临床和影像学资料，将患者分为ICA狭窄程度<90%组和≥90%组。将HVS的分布区域划分为侧裂池、颞枕叶脑沟和其他部位，统计HVS在各区域出现的次数。根据HVS的分布范围，将HVS分为I级（HVS分布范围<1/3大脑中动脉供血区）、II级（HVS分布范围>1/3大脑中动脉供血区）。比较不同狭窄程度HVS的发生率和分级的差别，分析CEA前后ICA及T2-FLAIR序列的变化，评估CEA对HVS的影响。结果 ICA狭窄程度≥90%组HVS的发生率显著高于<90%组，差异有统计学意义（χ2=23.584, P<0.001）。HVS在各区域出现的次数分别为：侧裂池12次，颞枕叶脑沟34次，其他部位15次。ICA狭窄程度≥90%组的HVS II级比例高于<90%组（χ2=8.395, P<0.05）。CEA后24例HVS消失，5例HVS不变。结论 HVS的发生率及等级与ICA狭窄程度具有相关性。ICA狭窄所致HVS多见于颞枕叶脑沟，侧裂池较少见。CEA可以明显改善HVS，术后HVS消失可能成为评估CEA效果的有效指标之一。
目的探討T2-FLAIR序列高信號血管徵（HVS）與頸動脈（ICA）狹窄程度的相關性，評估頸動脈內膜剝脫術（CEA）對HVS的影響。資料與方法迴顧性分析51例ICA狹窄患者的臨床和影像學資料，將患者分為ICA狹窄程度<90%組和≥90%組。將HVS的分佈區域劃分為側裂池、顳枕葉腦溝和其他部位，統計HVS在各區域齣現的次數。根據HVS的分佈範圍，將HVS分為I級（HVS分佈範圍<1/3大腦中動脈供血區）、II級（HVS分佈範圍>1/3大腦中動脈供血區）。比較不同狹窄程度HVS的髮生率和分級的差彆，分析CEA前後ICA及T2-FLAIR序列的變化，評估CEA對HVS的影響。結果 ICA狹窄程度≥90%組HVS的髮生率顯著高于<90%組，差異有統計學意義（χ2=23.584, P<0.001）。HVS在各區域齣現的次數分彆為：側裂池12次，顳枕葉腦溝34次，其他部位15次。ICA狹窄程度≥90%組的HVS II級比例高于<90%組（χ2=8.395, P<0.05）。CEA後24例HVS消失，5例HVS不變。結論 HVS的髮生率及等級與ICA狹窄程度具有相關性。ICA狹窄所緻HVS多見于顳枕葉腦溝，側裂池較少見。CEA可以明顯改善HVS，術後HVS消失可能成為評估CEA效果的有效指標之一。
목적탐토T2-FLAIR서렬고신호혈관정（HVS）여경동맥（ICA）협착정도적상관성，평고경동맥내막박탈술（CEA）대HVS적영향。자료여방법회고성분석51례ICA협착환자적림상화영상학자료，장환자분위ICA협착정도<90%조화≥90%조。장HVS적분포구역화분위측렬지、섭침협뇌구화기타부위，통계HVS재각구역출현적차수。근거HVS적분포범위，장HVS분위I급（HVS분포범위<1/3대뇌중동맥공혈구）、II급（HVS분포범위>1/3대뇌중동맥공혈구）。비교불동협착정도HVS적발생솔화분급적차별，분석CEA전후ICA급T2-FLAIR서렬적변화，평고CEA대HVS적영향。결과 ICA협착정도≥90%조HVS적발생솔현저고우<90%조，차이유통계학의의（χ2=23.584, P<0.001）。HVS재각구역출현적차수분별위：측렬지12차，섭침협뇌구34차，기타부위15차。ICA협착정도≥90%조적HVS II급비례고우<90%조（χ2=8.395, P<0.05）。CEA후24례HVS소실，5례HVS불변。결론 HVS적발생솔급등급여ICA협착정도구유상관성。ICA협착소치HVS다견우섭침협뇌구，측렬지교소견。CEA가이명현개선HVS，술후HVS소실가능성위평고CEA효과적유효지표지일。
Purpose To evaluate the correlation between T2-FLAIR hyperintense vessel sign (HVS) and the stenotic degree of internal carotid artery (ICA) and assess the HVS changes after the carotid endarterectomy (CEA). Materials and Methods Fifty-one patients with CEA were retrospectively enrolled. The stenosis of the bilateral ICA were as:≥90%, and<90%. The distribution of HVS locations was classified as three regions:sylvian fissure, sulci of temporo-occipital lobe and other areas. The presence and the location of HVS were counted. The extrension of HVS on T2-FLAIR were graded as:I:the presence of HVS was<1/3 of the MCA territory, II:the presence of HVS was≥1/3 of the MCA territory.χ2-test was performed for correlation between HVS and ICA stenosis. The difference of HVS and stenosis of ICA and their effects on CEA was accessed. Results HVS was significantly higher in the ICA stenosis more than 90%group than in the less than 90% group (χ2=23.584, P<0.001). The frequencies of HVS were 12, 34 and 15 in sylvian fissure, sulci of temporo-occipital lobe and other area, respectively. The proportion of grade II HVS was higher in the ≥ 90% group than in the<90% group (χ2=8.395, P<0.05). After CEA, HVS on 29 affected hemispheres were showed to be disappeared (n=24) or remained (n=5) in the treated side. Conclusion The presence and the grade of HVS were correlated with the stenotic degree of ICA. In the patients with ICA stenosis, HVS was most frequently found in the sulci of temporal lobe and occipital lobe, and seldom found in sylvian fissure. HVS disappeared after CEA indicating that HVS can be considered as a marker for CEA treatment.
