Rosenzweig B P, Nayar A C, Varkey M P, Kronzon I
Non-Invasive Cardiology Laboratories, New York University Medical Center, New York, New York 10016, USA.
J Am Soc Echocardiogr. 2001 Feb;14(2):155-7. doi: 10.1067/mje.2001.108249.
Pulsed wave, continuous wave, and color flow Doppler imaging as well as intravenously administered agitated saline solution can detect intracardiac shunts during transthoracic echocardiography. Ultrasonographic contrast agents have greatly improved the visualization of left heart chambers and can enhance signals from blood flow within chambers and across valves, increasing the sensitivity of Doppler techniques. We describe a patient in whom the use of echo contrast media during transthoracic echocardiography allowed the detection of a previously unseen atrial septal defect. Combining such modalities may help to increase the sensitivity of transthoracic echocardiography and may eliminate the need for transesophageal echocardiography in selected patients.
脉冲波、连续波和彩色血流多普勒成像以及静脉注射搅动生理盐水溶液，在经胸超声心动图检查期间可检测心内分流。超声造影剂极大地改善了左心腔的可视化，并可增强心腔内及跨瓣膜血流信号，提高了多普勒技术的敏感性。我们描述了一名患者，经胸超声心动图检查期间使用超声造影剂检测到了一个之前未发现的房间隔缺损。联合使用这些方法可能有助于提高经胸超声心动图的敏感性，并可能使部分患者无需进行经食管超声心动图检查。
