ULTRASOUND TRANSDUCER FOR CONTINUOUS IMAGING OF HEART

用于心脏连续成像的超声换能器

• 批准号: 2715952
• 负责人: PREMINDRA A CHANDRARATNA
• 金额: $ 10万
• 依托单位: GUIDED THERAPY SYSTEMS, INC.
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-05-15 至 2000-11-14
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2715952
• 关键词: angiocardioultrasonography; bioimaging /biomedical imaging; biomedical equipment development; cardiac output; cardiography; electronic recording system; patient monitoring device; ultrasonography; ultrasound blood flow measurement

DESCRIPTION (Adapted from Applicant's Abstract): Currently available ultrasound transducers are hand-held devices. Changes in clinical status of patients may warrant multiple echocardiograms. Performance of serial echocardiograms within a short period of time using a hand-held transducer is inconvenient, expensive, and often impractical. Thus, there is a great clinical need for an ultrasound transducer which can be used for continuous imaging of the heart. To circumvent the limitations on hand-held transducers, the applicants proposed to build a spherical, low profile, ultrasound transducer which will be attached to the chest wall using an adhesive ring to permit continuous imaging of cardiac structures and Doppler flow velocity profiles. The transducer will be coupled to a lightweight, portable, inexpensive ultrasound machine. Potential applications include continuous recording of left ventricular wall motion in the coronary care unit, intraoperative monitoring of left ventricular function, and recording of cardiac output and pulmonary diastolic pressure using Doppler flow velocity profiles. Measurement of cardiac and pulmonary diastolic pressure will be automated, and these parameters as well as wall motion will be displayed on a screen in the intensive care unit. This device would replace current invasive methods, thereby reducing potential risk. PROPOSED COMMERCIAL APPLICATION: 1. Non-invasive ultrasonic hemodynamic monitoring. 2. Continuous "Hands-free" ultrasonic monitoring of left ventricular function in the intensive care setting.

描述（改编自申请人的摘要）：目前可用的超声换能器是手持式装置。 患者临床状态的变化可能需要多次超声心动图检查。使用手持式换能器在短时间内执行连续超声心动图是不方便的，昂贵的，并且通常是不切实际的。 因此，临床上对可用于心脏连续成像的超声换能器有很大的需求。 为了规避对手持式换能器的限制，申请人提出构建球形、低剖面、超声换能器，其将使用粘合环附接到胸壁以允许心脏结构和多普勒流速分布的连续成像。 换能器将被耦合到一个重量轻，便携式，廉价的超声机。 潜在的应用包括在冠心病监护室连续记录左心室壁运动，术中监测左心室功能，以及使用多普勒血流速度曲线记录心输出量和肺舒张压。 心脏和肺舒张压的测量将自动进行，这些参数以及室壁运动将显示在重症监护室的屏幕上。 该设备将取代目前的侵入性方法，从而降低潜在风险。建议的商业应用：1.无创超声血流动力学监测。2.重症监护环境中连续“免提”超声监测左心室功能

项目成果

"Hands-Free" continuous transthoracic monitoring of pericardiocentesis using a novel ultrasound transducer.

使用新型超声换能器对心包穿刺术进行“免提”连续经胸监测。

• DOI: 10.1046/j.1540-8175.2003.03084.x
• 发表时间: 2003
• 期刊: Echocardiography (Mount Kisco, N.Y.)
• 作者: Chandraratna,PAN;Vijayasekaran,Sridhar;Brar,Prabhjoyt;Tzeng,John
• 通讯作者: Tzeng,John

Feasibility of continuous transthoracic cardiac imaging using a novel ultrasound transducer.

使用新型超声换能器进行连续经胸心脏成像的可行性。

• DOI: 10.1046/j.1540-8175.2001.00651.x
• 发表时间: 2001
• 期刊: Echocardiography (Mount Kisco, N.Y.)
• 作者: Chandraratna,PA;Vijayasekaran,S;Brar,R;Azer,M;Brar,B;Gandhi,S;Niguse,GT;Chen,Q
• 通讯作者: Chen,Q