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e-CASES: Haller index

Dr Antoine Micheau , CHU ARNAUD DE VILLENEUVE , Montpellier , Herault , FRANCE

Calculated on a CT scan by obtaining the ratio of the horizontal distance of the inside of the ribcage and the shortest distance between the vertebrae and sternum.

 

Normal Haller index = 2.5

Haller Index > 3.25 is considered as severe pectus excavatum