A novel technique to measure severity of pediatric pectus excavatum using white light scanning.
jpedsurg.org shows its articles on its own site.
Read the article on jpedsurg.org ↗Article · May 2018 · 1 min read
In brief
In brief
Study validates handheld white light scanning as a radiation-free alternative to CT for measuring pectus excavatum severity in children. The novel Hebal-Malas Index derived from optical scans showed strong correlation with traditional CT-based Haller Index (r=0.87), supporting its use for serial monitoring and surgical planning without repeated radiation exposure.
Written by the GCMD Library team from the article.
Background/purpose
Computed tomography (CT) derived Haller Index (HI) remains the standard for quantifying severity in patient with pectus excavatum (PE). Optical scanning described in literature reports optimistic results and new indices that correlate with HI. This study assessed the feasibility of a handheld White Light Scanner (WLS) to obtain 3D measurements and indices of PE deformity.
Methods
From April 2015–April 2017, WLS scanning was conducted by orthotists during clinical visits. Included were children with PE up to 18 years. Analysis assessed correlation of a WLS-derived severity index, Hebal-Malas Index (HMI), with physician measured PE Depth (PED), and CT-derived HI.
Results
Of 195 participants, 185(94%) patients with PE were scanned and 127(69%) had complete WLS data. For 88 patients undergoing monitoring, HMI correlated with PED (r = 0.42, p = 0.004). For 39 patients with pre-operative CT, HMI demonstrated strong correlation with HI (r = 0.87, p