冠状动脉解剖
冠状动脉CoronaryArteries:Branches
Someofthearteriesthatextendfromthemaincoronaryarteriesinclude:
右冠状动脉RightCoronaryArtery-Suppliesoxygenatedbloodtothewallsoftheventriclesandtherightatrium.
后室间支,亦称后降支PosteriorDescendingArtery-Suppliesoxygenatedbloodtotheinferiorwalloftheleftventricleandtheinferiorportionoftheseptum.
左冠状动脉LeftMainCoronaryArtery-Directsoxygenatedbloodtotheleftanteriordescendingarteryandtheleftcircumflex.
左前降支也称前室间支LeftAnteriorDescendingArtery-Suppliesoxygenatedbloodtotheanteriorportionoftheseptumaswellastothewallsoftheventriclesandtheleftatrium(frontregionoftheheart).
旋支LeftCircumflexArtery-Suppliesoxygenatedbloodtothewallsoftheventriclesandtheleftatrium(backregionoftheheart).
冠状动脉分段
CTimagesofnormalheartin53-year-oldman.主动脉根部Ao=aorticroot,冠状窦CS=coronarysinus,左心房LA=leftatrium,左前降支LAD=leftanteriordescendingartery,左旋支LCx=leftcircumflexartery,左冠状动脉主干LM=leftmaincoronaryartery,左心室LV=leftventricle,后降支PDA=posteriordescendingartery,右心房RA=rightatrium,右冠状动脉RCA=rightcoronaryartery,右心室RV=rightventricle,右室流出道RVOT=rightventricularoutflowtract.Axial5-mmmaximum-intensity-projection(MIP)imageshowsleftmaincoronaryarteryasitarisesfromleftcoronarycusp.
左冠状动脉LCA(黑箭),左前降支LAD(白箭头),
左旋支LCx(黑箭头),右冠状动脉RCA(白箭)
左冠状动脉LCA(黑箭),左旋支LCx(箭头),左前降支LAD(白箭)
左前降支LAD(箭头)
左前降支LAD(箭头)
室间隔支(黑色箭头),对角支(白色箭头)
左前降支(黑箭头),回旋支(白箭头)中间支(对角支)(箭)
右冠状动脉(黑箭),动脉圆锥支(箭头)来自主动脉,锐缘支(白箭)
锐缘支(白箭)
窦房结支(箭头)
圆锥支的解剖变异
AO=主动脉根部,LA=左心房,LAD=左前降支,LM=左冠状动脉主干,LV=左心室,RA=右心房,RCA=右冠状动脉,RVOT=右室流出道,SAN=窦房结支。
Ao=aorticroot,LA=leftatrium,LAD=leftanteriordescendingartery,LM=leftmaincoronaryartery,LV=leftventricle,RA=rightatrium,RCA=rightcoronaryartery,RVOT=rightventricularoutflowtract,SAN=sinoatrialnodebranch.
窦房结支的变异:
窦房结支(箭头),来自右冠状动脉近端
窦房结支(箭头),来自左回旋支
AO=主动脉根部,D1=第一对角支,GCV=心大静脉,LA=左心房,LAD=左前降支,LCx=左回旋支,LM=左冠状动脉主干,OM1=第一钝缘支,RCA=右冠状动脉,RVOT=右室流出道,SVC=上腔静脉。
LAD=左前降支,LV=左心室,RCA=右冠状动脉,RV=右心室。右缘支(箭)
Ao=主动脉根部,AVN=房室结支,IMB=下缘支,LCx=左回旋支,LV=左心室,PDA=后降支,PLB=后外侧支,RCA=右冠状动脉,RVOT=右室流出道
CS=冠状窦,LV=左心室,MCV=心中静脉,PDA=后降支,PLB=后外侧支,PLV=后外侧静脉,RA=右心房,RCA=右冠状动脉,RV=右心室
Ao=主动脉根部,AVGA=房室沟动脉,CS=冠状窦,LA=左心房,OM=钝缘支,PDA=后降支,PLB=后外侧支,RA=右心房,RCA=右冠状动脉
LV=左心室,PDA=后降支,PLB=后外侧支,RCA=右冠状动脉,RV=右心室
左冠状动脉解剖AVGA=房室沟动脉,PDA=后降支
左冠状动脉主干分叉AVGA=房室沟动脉,D1=第一对角支,LAD=左前降支,LCx=左回旋支,LM=左冠状动脉主干,OM1=第一钝缘支,SAN=窦房结支
中间支解剖
LAD=左前降支leftanteriordescendingartery,LCx=左回旋支leftcircumflexartery,LM=左冠状动脉主干leftmaincoronaryartery,RI=中间支动脉ramusintermediusartery
前降支
LA=左心房leftatrium,LV=左心室leftventricle
Myocardialbridgeandseptalperforatorbranch心肌桥和室间隔穿支
LA=左心房leftatrium,LAA=左心耳leftatrialappendage,LV=左心室leftventricle,S1,S2,S3=first,second,andthirdseptalperforators第一、二、三室间隔穿支,心肌桥覆盖第二室间隔穿支以远左前降支(箭)
心肌桥左前降支(箭)
对角支
D1=第一对角支firstdiagonal,D2=第二对角支seconddiagonal,LAD=左前降支leftanteriordescendingartery,LCx=左回旋支leftcircumflexartery,LM=左冠状动脉主干leftmaincoronaryartery,LV=左心室leftventricle,RI=中间支ramusintermediusartery,SP=室间隔穿支septalperforatorbranches
Nondominantleftcircumflexarteryanatomy
AVGA=房室沟动脉atrioventriculargrooveartery,CS=冠状窦coronarysinus,D1=第一对角支firstdiagonal,GCV=心大静脉greatcardiacvein,LAD=左前降支leftanteriordescendingartery,LCx=左回旋支leftcircumflexartery,OM1=第一钝缘支firstobtusemarginal
Dominantleftcircumflexarteryanatomy
AVGA=房室沟动脉atrioventriculargrooveartery,LCx=左回旋支leftcircumflexartery,LM=左冠状动脉主干leftmaincoronaryartery,OM1=第一钝缘支firstobtusemarginal,OM2=第二钝缘支secondobtusemarginal,PDA=后降支posteriordescendingartery,PLB=后外侧支posteriorlateralbranch,RI=中间支动脉ramusintermediusartery
右冠状动脉和左主冠状动脉异常起源Anomalousoriginofrightcoronaryarteryandleftmaincoronaryartery
Ao=主动脉根部aorticroot,LAD=左前降支leftanteriordescendingartery,LM=左冠状动脉主干leftmaincoronaryartery,RCA=右冠状动脉rightcoronaryartery,RVOT=右室流出道rightventricularoutflowtract
左心室(黑*),左心房(白*),左心耳(白箭),二尖瓣(MV)(黑箭),冠状窦CS(箭头)
左心室(大黑*),左心房(小黑*),右心房(RA)(小白*),二尖瓣MV(黑箭),三尖瓣(白箭)和心包(箭头)
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