Transducers in medical ultrasound: Part Three. Transducer applications in echocardiology |
| |
| Authors: | C T Lancée R Daigle D J Sahn J M Thijssen |
| |
| Institution: | Thoraxcenter, Erasmus University Rotterdam, PO Box 1738, 3000 DR Rotterdam, The Netherlands;Advanced Technology Laboratory Inc., PO Box 6639, Bellevue, Washington 98007, USA;University Hospital, University of California Medical Center, 225 Dickinson Street, San Diego, California 92103-9981, USA;Laboratory of Biophysics, Department of Opthalmology, University of Nijmegen, Philips van Leydenlaan 15, 6500 HB Nijmegen, The Netherlands |
| |
| Abstract: | A comparison is made between phased arrays and mechanical sector scanners in transcutaneous echocardiographic applications. Aspects such as contact area, beam control, side lobes, grating lobes and image quality are discussed in the context of transducer frequency. The incorporation of simultaneous acquisition of Doppler velocity information and display of M-mode signals is considered. Transoesophageal and intraoperative scanning systems for cardiology are also compared, in particular linear arrays, phased arrays and mechanical scanners, and their advantages and disadvantages in relation to the above mentioned aspects are discussed. The general conclusion is that electronic sector scanners may have a considerably improved cost/benefit ratio in the near future and thereby will become the leading systems for echocardiography. |
| |
| Keywords: | ultrasound transducers echocardiology |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
