Head H D, Brown M F
Miami Valley Hospital, Dayton, Ohio.
Ann Thorac Surg. 1995 Jan;59(1):144-8. doi: 10.1016/0003-4975(94)00796-A.
High-resolution, real-time ultrasonographic imaging of the greater saphenous veins was performed preoperatively in 100 patients undergoing coronary artery bypass grafting. Vein diameters were measured by ultrasound at four locations in the leg, and the course of the vein in the leg was marked on the overlying skin. Veins removed at operation were measured at the same locations at initial dissection and after vein preparation. The mapped and in situ vein diameters correlated closely, whereas the distended vein diameter was approximately 1.5 mm larger. When greater saphenous veins were absent or diseased, lesser saphenous veins were mapped. No differences in measurements were demonstrated for a variety of patient and operator variables. Major branches or duplications were predicted correctly in 11 patients and venous disease in 13 patients. Mapping influenced the surgeon's choice of the venectomy site in 13 patients. Vein mapping is a simple, accurate, and noninvasive method of imaging the saphenous vein preoperatively. It is useful in demonstrating areas of venous anomalies and disease, and predicts the course of the vein in the leg.
对100例行冠状动脉搭桥术的患者在术前进行了大隐静脉的高分辨率实时超声成像检查。通过超声在腿部四个位置测量静脉直径，并在覆盖的皮肤上标记腿部静脉的走行。在手术中切除的静脉在初次解剖时和静脉准备后在相同位置进行测量。标记的静脉直径与原位静脉直径密切相关，而扩张后的静脉直径大约大1.5毫米。当大隐静脉缺失或病变时，对小隐静脉进行标记。对于各种患者和操作者变量，测量结果未显示出差异。11例患者的主要分支或重复情况以及13例患者的静脉疾病被正确预测。标记影响了13例患者手术医生对静脉切除术部位的选择。静脉标记是一种术前对隐静脉进行成像的简单、准确且无创的方法。它有助于显示静脉异常和疾病区域，并预测腿部静脉的走行。
