Ehrsam J E, Spittell P C, Seward J B
Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA.
J Am Soc Echocardiogr. 1998 Jan;11(1):10-2. doi: 10.1016/s0894-7317(98)70114-2.
We report our experience in visualizing the internal mammary artery (IMA) with new enhanced Doppler technology. Twenty-three patients without previous coronary artery bypass grafting formed the study group. Bilateral transthoracic two-dimensional and color flow Doppler IMA images were acquired from multiple intercostal spaces with a prototype ultrasound machine equipped with coherent beam formation technology. In all patients, the IMA was followed from its origin for an average of 15 cm. To our knowledge, a high rate of direct visualization (100%) of the IMA has not been reported previously. Noninvasive ultrasound assessment of the IMA may reduce the need for invasive preoperative testing for patency and length and allow postoperative assessment of coronary artery flow reserve.
我们报告了使用新型增强多普勒技术可视化乳内动脉（IMA）的经验。23例未曾接受过冠状动脉旁路移植术的患者组成了研究组。使用配备相干波束形成技术的原型超声机从多个肋间间隙获取双侧经胸二维和彩色血流多普勒IMA图像。在所有患者中，对IMA从其起源处开始追踪，平均追踪长度为15厘米。据我们所知，此前尚未有关于IMA直接可视化率高达100%的报道。对IMA进行无创超声评估可能会减少术前进行有创通畅性和长度检测的需求，并允许术后评估冠状动脉血流储备。
