【医学影像】心与大血管.pptVIP

影像学检查方法 普通X线检查 特殊X线检查 造影和DSA检查 CT检查 MRI检查 US检查 核医学检查 3D images of coronary arteries A healthy volunteer LCx, LM, RCA, acute marginal artery into the RV, and sinus node (SN) Ao, first diagonal (D1), LAD, LCx, LM, and RVOT Acute transmural myocardial infarction in midventricular part of anterior LV wall 36m, occlusion of first diagonal branch of LAD High signal intensity in anterior left ventricular wall corresponding to myocardial edema Akinesia and absent systolic wall thickening in anterior LV wall * Patent ductus arteriosus Axial and oblique MRA depict the ductus aAo = ascending aorta * Aortopulmonary window The ascending aorta communicates directly with the main pulmonary artery Differs from truncus arteriosus in that both the aortic and the pulmonary valves are present Associated lesions: VSD, PDA, coarctation of the aorta Typically manifest signs and symptoms of congestive heart failure early in life MRI fully depict the anatomic features of aortopulmonary window. Transverse and coronal spin-echo images can depict the abnormal connection between the aorta and the pulmonary trunk, and cine images can reveal a left-to-right shunt * Aortopulmonary window F20 ECG-gated SE images A large defect between the lateral aspect of the ascending aorta and the medial aspect of the main pulmonary artery * 肺动脉狭窄 病理：常为胎儿期心内膜炎所致。肺动脉瓣膜狭窄，瓣叶相互粘连融合，成一圆形穹隆样隔膜。瓣叶增厚，缩短和僵硬，边缘有纤维结缔组织或细小赘生物 临床：常见症状为疲乏，心悸及气急 体征：重者晚期可出现青紫 * 肺动脉狭窄示意图 * 肺动脉狭窄示意图 * 肺动脉狭窄 右心室造影 瓣膜部狭窄，肺动脉主干扩张显著，造影剂排空延迟 * 肺动脉狭窄正侧位造影 * 肺动脉狭窄 右心室造影 瓣膜部狭窄，肺动脉主干扩张显著 * 肺动脉狭窄 肺动脉段突出 左肺纹理细小 右下肺动脉增粗 右室圆隆 * 法乐四联症 病理：有四种畸形：肺动脉狭窄；高位室间隔缺损；主动脉骑跨；右室肥厚 临床：出生后即出现紫绀，有杵状指；严重时有晕厥或惊厥发生，发育较差 * Tetralogy of Fallot A vast spectrum of pulmonary artery abnormalities is seen Mild, a VSD and mild pulmonary valve stenosis, known as pink tetralogy, may be asymptomatic Severe, complete pulmonary artery atresia with absence of the main pulmonary arteries, also known as pseudotruncus arteriosus. systemic-pulmonary collateral vessels and a right-to-le