How is the Haller Index used to measure the extent of pectus excavatum?

Lyall A. Gorenstein, MD
Thoracic Surgery (Cardiothoracic Vascular)
The Haller Index is a measure of the extent of pectus excavatum. The Haller index is measured by means of the CT scan. It is calculated by obtaining the ratio of the horizontal distance of the inside of the ribcage and the shortest distance between the vertebrae and sternum. A Haller Index of greater than 3.25 is generally considered severe (a normal Haller Index is 2.5).

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Birth Defects

Birth Defects

The cause of most birth defects is unknown, though genetics and environmental factors can play a role. While prenatal tests can detect some birth defects, many are not found immediately. Some birth defects can be prevented by taki...

ng vitamins with folic acid before conception and avoiding known contaminants such as smoking, alcohol and illegal drugs.
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