Sandstede J, Pabst T, Beer M, Kellner M, Kenn W, Neubauer S, Hahn D
Institut für Röntgendiagnostik, Universität Würzburg.
Rofo. 1998 Oct;169(4):432-6. doi: 10.1055/s-2007-1015313.
Congenital coronary artery anomalies are found in 0.3 to 1.3% of patients and can cause ischemic heart disease or sudden cardiac death, especially if the anomalous coronary artery courses between the aortic root and the pulmonary artery. Identification of the anatomic course of the anomalous vessel is not always feasible by conventional radiographic coronary angiography. With MR coronary angiography not only flowing blood but also the vessel anatomy can be imaged. In previous studies, a two-dimensional gradient-echo sequence during breathhold was used demanding both cooperation of the patient and operator skill. The navigator technique reduces respiratory artifacts by retrospective respiratory gating on the diaphragm's position, obviating the need for breathhold studies. Furthermore, the three-dimensional MR coronary angiography enables post-processing using the Volume Rendering Technique for evaluation of three-dimensional view. We report on the use of this technique for the identification of the course of anomalous coronary arteries in two patient cases.
先天性冠状动脉异常在0.3%至1.3%的患者中被发现，可导致缺血性心脏病或心源性猝死，尤其是当异常冠状动脉走行于主动脉根部和肺动脉之间时。通过传统的放射学冠状动脉造影并不总是能够确定异常血管的解剖走行。磁共振冠状动脉造影不仅可以对流动血液成像，还能对血管解剖结构成像。在以往的研究中，使用屏气二维梯度回波序列，这既需要患者的配合，也需要操作者的技术。导航技术通过对膈肌位置进行回顾性呼吸门控来减少呼吸伪影，从而无需进行屏气检查。此外，三维磁共振冠状动脉造影能够使用容积再现技术进行后处理，以评估三维视图。我们报告了在两例患者中使用该技术识别异常冠状动脉走行的情况。
