Table 2: Data rates for typical telemedicine devices [7].

Digital device Temporal/spatial Contrast/resolution Required data
(no. of samples/sec) (bits per sample)rate

Digital blood pressure monitor 1 <10 kbps
Digital audio stethoscope 10000 approx. 120 kbps
Electrocardiogram (ECG) 1250 approx. 15 kbps
Ultrasound, cardiology, radiology 512 512 256 kB (image size)
Scanned X-ray 1024 1250 1.8 MB (image size)
Mammogram 4096 4096 24 MB (image size)
Compressed and full motion video 384 kbps to 1.544 Mbps