Reliability of External Caliper-Based Measurements for Identifying Severe Pectus Excavatum: Results from a Multi-Institutional Regional Consortium

Abstract

Historically, methods for quantifying the severity of pectus excavatum (PE) have involved cross-sectional imaging. An external caliper-based metric, the Modified Percent Depth (MPD), has been described as a viable alternative to radiographic-based measurements such as the Pectus and Correction Indices for identifying severe PE in the clinic setting. The purpose of this study was to evaluate the reproducibility of the MPD among PE patients evaluated within a regional multicenter consortium of children’s hospitals.

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