Pocket calculator program to compute normal values for echocardiographic measurements in children
✍ Scribed by Larry A. Latson; Howard P. Gutgesell
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 384 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0010-4825
No coin nor oath required. For personal study only.
✦ Synopsis
We have developed a pocket calculator program which computes the upper and lower limits of normal for six cardiac dimensions and two systolic time intervals frequently measured from M-mode echocardiograms.
The parameters include the diameter of the left ventricle, left atrium. aorta, and right ventricle, the thickness of the septum and left ventricular posterior wall, and the preejection period and ejection time. The normal ranges are calculated from previously published regression equations relating the various parameters to a function of body weight or to heart rate. Use of the program eliminates the necessity for plotting measured values onto graphs of normals, and should increase the speed and accuracy of interpretation of these paremeters, especially in pediatric echocardiography.