血管内超声在冠状动脉分叉病变分型中应用的探讨Application intravascular ultrasound the classification of coronary bifurcation lesions
李丽,盖鲁粤,杨庭树,王禹,陈练,刘宏斌,孙志军,金琴花
摘要(Abstract):
目的探讨血管内超声(IVUS)在冠状动脉分叉病变分型中的价值。方法经冠状动脉造影(CAG)确定的53例患者,共62处冠状动脉分叉病变,除常规CAG检查外,均行IVUS检查,根据主支(MV)和分支(SB)开口的斑块特点和分布进行病变类型的归纳与分类。结果分叉部位93.55%的MV斑块和98.39%的SB血管开口病变为偏心性斑块,斑块最大厚度呈相向存在或外侧壁分布的比例为77.42%。分叉部位共有6种主要病变类型:A型,MV偏心斑块位于SB开口对侧,SB开口的偏心斑块位于分叉脊对侧,占90.32%;B型,MV有向心斑块但未累及SB开口,SB开口的对侧主支上有斑块,占1.61%;C型,MV有向心性斑块并累及SB开口,SB开口的偏心斑块位于分支侧分叉脊的对侧,占1.61%;D型,MV有向心性斑块并累及SB开口及分叉脊的主支侧,占3.23%;E型,MV的偏心斑块位于SB开口对侧,SB血管开口有向心性病变,占1.61%;F型,MV的偏心斑块最大厚度位于SB侧,且斑块累及SB开口及分叉脊的主支侧,占1.61%。累及到分叉脊处的病变仅6.45%。结论冠状动脉分叉病变的IVUS分型不同于传统的CAG分型。病变的偏心性和外侧壁分布以及分叉脊的低病变率是IVUS分型的主要特点。
关键词(KeyWords): 超声检查,介入性;冠状动脉疾病;诊断技术,心血管
基金项目(Foundation):
作者(Author): 李丽,盖鲁粤,杨庭树,王禹,陈练,刘宏斌,孙志军,金琴花
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