Digital echocardiography 2002: now is the time.

The ability to acquire echocardiographic images digitally, store and transfer these data using the DICOM standard, and routinely analyze examinations exists today and allows the implementation of a digital echocardiography laboratory. The purpose of this review article is to outline the critical components of a digital echocardiography laboratory, discuss general strategies for implementation, and put forth some of the pitfalls that we have encountered in our own implementation. The major components of the digital laboratory include (1) digital echocardiography machines with network output, (2) a switched high-speed network, (3) a high throughput server with abundant local storage, (4) a reliable low-cost archive, (5) software to manage information, and (6) support mechanisms for software and hardware. Implementation strategies can vary from a complete vendor solution providing all components (hardware, software, support), to a strategy similar to our own where standard computer and networking hardware are used with specialized software for management of image and measurement information.

[1]  D Ehler,et al.  Transition to an all-digital echocardiography laboratory: a large, multi-site private cardiology practice experience. , 2000, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[2]  J D Thomas,et al.  JPEG compression of digital echocardiographic images: impact on image quality. , 1995, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[3]  T. Marwick,et al.  Accuracy and cost- and time-effectiveness of digital clip versus videotape interpretation of echocardiograms in patients with valvular disease. , 2001, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[4]  L Weinert,et al.  Electronic transmission of digital echocardiographic studies: effects of MPEG compression. , 2000, International journal of cardiology.

[5]  G Fitch,et al.  A comparison of the interpretation of digitized and videotape recorded echocardiograms. , 1999, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[6]  J D Thomas,et al.  Comparison of MPEG-1 digital videotape with digitized sVHS videotape for quantitative echocardiographic measurements. , 2001, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[7]  J D Thomas,et al.  The DICOM Image Formatting Standard: what it means for echocardiographers. , 1995, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[8]  M. Cahalan,et al.  The diagnostic validity of digitally captured intraoperative transesophageal echocardiography examinations compared with analog recordings: A pilot study. , 1999, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[9]  R M Lang,et al.  Effects of MPEG compression on the quality and diagnostic accuracy of digital echocardiography studies. , 2000, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[10]  J W Mathewson,et al.  Pediatric digital echocardiography: a study of the analog-to-digital transition. , 2000, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[11]  J D Thomas,et al.  Digital formatting standards in medical imaging: a primer for echocardiographers. , 1994, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[12]  J D Thomas,et al.  Real-time transmission of full-motion echocardiography over a high-speed data network: impact of data rate and network quality of service. , 2000, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[13]  J D Thomas,et al.  Digital storage of echocardiograms offers superior image quality to analog storage, even with 20:1 digital compression: results of the Digital Echo Record Access Study. , 1996, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[14]  J D Thomas,et al.  Comparison of MPEG digital video with super VHS tape for diagnostic echocardiographic readings. , 1998, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[15]  J D Thomas,et al.  Digital echocardiographic laboratory: where do we stand? , 1998, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

[16]  S. E. Nissen,et al.  Digital storage and transmission of cardiovascular images: what are the costs, benefits and timetable for conversion? , 1996, Heart.

[17]  J D Thomas,et al.  Digital compression of echocardiograms: impact on quantitative interpretation of color Doppler velocity. , 1996, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.