b. From our reading on Xcelera ECHO System, we found that:

ECHO system acquire data by Non-invasive single trans-thoracic cardiac ultrasound waves.

ECHO system has sophisticated equipment that analyzes waves produced and received by transducers.

ECHO system assembles the reflected ultrasound waves then creates an image of the heart which appear on a television screen.

ECHO system converts the echoes into images to produce a one-, two-, or three-dimensional picture of the heart.

ECHO system presents data as spreadsheet with various echo parameters and representative images.

ECHO system put  the recordings on a computer disc or printed on paper to be reviewed by a cardiologist.

c. Links for Xcelera ECHO System

http://www.mcpc.wustl.edu/EchoCardiographic.html

http://www.cardioconsult.com/DiagnosticTechniques/Echocardiogram.php

http://www.nhlbi.nih.gov/health/health-topics/topics/echo/printall-index.html

d. image of Xcelera ECHO System (from National Heart,Lung and Blood Institute)