影像诊断与介入放射学
影像診斷與介入放射學
영상진단여개입방사학
JOURNAL OF DIAGNOSTIC IMAGING AND INTERVENTIONAL RADIOLOGY
2014年
3期
224-228
,共5页
动脉粥样硬化%冠状动脉粥样硬化性心脏病%磁共振成像%管壁成像%高分辨率
動脈粥樣硬化%冠狀動脈粥樣硬化性心髒病%磁共振成像%管壁成像%高分辨率
동맥죽양경화%관상동맥죽양경화성심장병%자공진성상%관벽성상%고분변솔
Atherosclerosis%Coronary artery disease%Magnetic resonance imaging%Vessel wall imaging%High resolution
目的:探讨高分辨MR管壁成像显示冠心病冠状动脉管壁异常的可行性。方法收集18例经冠状动脉血管造影或CT血管成像证实有冠状动脉狭窄的冠心病患者,在1.5 T MR设备中进行冠状动脉管壁黑血成像。采集狭窄段及其邻近非狭窄段的横断面管壁图像,由两位MR医师协商评估,将显示不满意的图像剔除。在显示满意的狭窄段和非狭窄段管壁图像上分别其测量管壁厚度、管腔直径及横截面积并进行对比。结果18例患者中有15例患者顺利完成检查,经冠状动脉造影或CT血管成像证实共有26个冠状动脉狭窄段,MR管壁成像共获得显示满意的图像34幅(狭窄段和非狭窄段各17幅),与非狭窄段相比,狭窄段管壁明显增厚(P<0.01),管腔直径及横截面积明显减小(P<0.05),差异均具有统计学意义。在MR管壁图像上,冠状动脉狭窄段的管壁呈局限性增厚者11例(64.7%),呈弥漫性增厚者6例(35.3%)。增厚的管壁呈高信号者4例(23.5%),等信号者5例(29.4%),低信号者1例(5.9%),高低混杂信号者7例(41.2%)。结论高分辨MR冠状动脉管壁成像可显示粥样硬化的冠状动脉狭窄段管壁及管腔异常,为冠心病的诊断提供了有力的影像证据,是一种很有潜力的检查方法。
目的:探討高分辨MR管壁成像顯示冠心病冠狀動脈管壁異常的可行性。方法收集18例經冠狀動脈血管造影或CT血管成像證實有冠狀動脈狹窄的冠心病患者,在1.5 T MR設備中進行冠狀動脈管壁黑血成像。採集狹窄段及其鄰近非狹窄段的橫斷麵管壁圖像,由兩位MR醫師協商評估,將顯示不滿意的圖像剔除。在顯示滿意的狹窄段和非狹窄段管壁圖像上分彆其測量管壁厚度、管腔直徑及橫截麵積併進行對比。結果18例患者中有15例患者順利完成檢查,經冠狀動脈造影或CT血管成像證實共有26箇冠狀動脈狹窄段,MR管壁成像共穫得顯示滿意的圖像34幅(狹窄段和非狹窄段各17幅),與非狹窄段相比,狹窄段管壁明顯增厚(P<0.01),管腔直徑及橫截麵積明顯減小(P<0.05),差異均具有統計學意義。在MR管壁圖像上,冠狀動脈狹窄段的管壁呈跼限性增厚者11例(64.7%),呈瀰漫性增厚者6例(35.3%)。增厚的管壁呈高信號者4例(23.5%),等信號者5例(29.4%),低信號者1例(5.9%),高低混雜信號者7例(41.2%)。結論高分辨MR冠狀動脈管壁成像可顯示粥樣硬化的冠狀動脈狹窄段管壁及管腔異常,為冠心病的診斷提供瞭有力的影像證據,是一種很有潛力的檢查方法。
목적:탐토고분변MR관벽성상현시관심병관상동맥관벽이상적가행성。방법수집18례경관상동맥혈관조영혹CT혈관성상증실유관상동맥협착적관심병환자,재1.5 T MR설비중진행관상동맥관벽흑혈성상。채집협착단급기린근비협착단적횡단면관벽도상,유량위MR의사협상평고,장현시불만의적도상척제。재현시만의적협착단화비협착단관벽도상상분별기측량관벽후도、관강직경급횡절면적병진행대비。결과18례환자중유15례환자순리완성검사,경관상동맥조영혹CT혈관성상증실공유26개관상동맥협착단,MR관벽성상공획득현시만의적도상34폭(협착단화비협착단각17폭),여비협착단상비,협착단관벽명현증후(P<0.01),관강직경급횡절면적명현감소(P<0.05),차이균구유통계학의의。재MR관벽도상상,관상동맥협착단적관벽정국한성증후자11례(64.7%),정미만성증후자6례(35.3%)。증후적관벽정고신호자4례(23.5%),등신호자5례(29.4%),저신호자1례(5.9%),고저혼잡신호자7례(41.2%)。결론고분변MR관상동맥관벽성상가현시죽양경화적관상동맥협착단관벽급관강이상,위관심병적진단제공료유력적영상증거,시일충흔유잠력적검사방법。
Objective To assess coronary vessel wall in atherosclerosis by high-resolution MRI.Methods 18 patients with coronary artery stenosis confirmed by selective coronary angiography or coronary CT angiography underwent high-resolution MRI of the coronary vessels using a 1.5 T MR system.Cross-sectional images of the stenotic and adjacent non-stenotic segments were evaluated by two radiologists in consensus.The images with inadequate visualization of vessel walls were excluded.The wall thickness,luminal diameters and cross-sectional areas of both stenotic and non-stenotic segments were measured and compared.Results Of 15 successful examinations,there were 26 confirmed stenotic coronary artery segments and 34 diagnostic images of the stenotic(17)and non-stenotic(17)segments.The vessel wall thickness of stenotic segments was significantly greater(P<0.01)whereas the luminal diameters and cross-sectional areas were significantly lower(P<0.05)than those of non-stenotic segments.The wall thickening was focal(64.7%)or diffuse(35.3%),hyperintense(23.5%),isointense(29.4%),hypointense(5.9%)or heterogeneous(41.2%)on MRI. Conclusion High-resolution MRI of coronary vessel wall can demonstrate the abnormalities of the wall and lumen of atherosclerotic coronary arteries for diagnosing coronary heart disease.