摘要
目的应用门控PET/CT评价猪双侧乳内动脉Y型搭桥术后桥血管和冠状动脉形态、心肌灌注、左心室功能。方法对6头实验猪行双侧乳内动脉Y型搭桥术。术后送至PET中心对其再行门控13 N-NH3心肌灌注和CT冠状动脉造影。结果 6头猪共12条桥血管的18处吻合口中15处显示清晰,冠状动脉充盈良好;左心室各壁心肌灌注放射性分布均匀,室壁运动正常,左心室功能均大于50%。结论门控PET/CT可无创地评价搭桥术后血管形态、心肌灌注和左心室功能。双侧乳内动脉Y型搭桥术可为心脏提供充足血供。
Objective To observe the shape of bridge vessels and coronary artery,myocardial perfusion and left ventricle function of pigs after bilateral internal mammary artery Y-bypass operation with gated PET/CT.Methods Six pigs were proceeded bilateral internal mammary artery Y-bypass operation,and were sent to PET center after operation.Then 13N-NH3 gated PET and CT coronary angiography were performed.Results Twelve bridge vessels and 15 in 18 anastomotic places were showed clearly.Coronary arteries filled well.The myocardial perfusion was well-distributed of left ventricular wall.The motion of the wall was normal.The left ventricular ejection function was greater than 50%.Conclusion Gated PET/CT can be used for noninvasive evaluation of vessels,myocardial perfusion and left ventricle function.Bilateral internal mammary artery Y-bypass operation can provide enough blood supply for the pig＇s heart.
出处
《中国医学影像技术》
CSCD
北大核心
2012年第5期825-828,共4页
Chinese Journal of Medical Imaging Technology
