Optical Surface Imaging Versus Conventional Photography as a Tool to Document the Surface Geometry of Pectus Excavatum
Optical Surface Imaging Versus Conventional Photography as a Tool to Document the Surface Geometry of Pectus Excavatum
Pectus excavatum is the most common congenital anterior chest wall deformity, known to occur
 in 1:400 of new-borns. Complaints may be of cosmetic nature or as a consequence of
 (cardio)pulmonary impairment. Part of the current work-up of pectus excavatum patients in
 Zuyderland Medical Centre (Heerlen, the Netherlands) is visual documentation of the
 deformity. Visual documentation is performed utilising a single-reflex camera and consists of
 5 standard photographs (acquired from different angles) and two specialised recordings. These
 specialised recordings encompass a recording to measure the pectus excavatum's depth and a
 raster stereography recording to create a three-dimensional perspective. However, this form
 of visual documentation is not efficient, as it is time- and labor-intensive for the
 photographer and patient.

 Recently, another study started that aims to investigate whether three-dimensional (3D)
 optical surface scans can be used to determine pectus severity, as compared to chest
 radiographs and computed tomography scans (3DPECTUS study; METCZ20190048; NCT03926078).
 Building on this study it was determined whether 3D optical surface scans can be used as a
 tool to document the surface geometry of pectus excavatum. To determine whether the current
 standard photographs and specialised recordings can be replaced by a 3D scan, both methods
 are compared. To make this comparison, the pectus excavatum depth was chosen as an objective
 measure of agreement. If there is good agreement, it is assumed that the standard photos can
 be replaced by a 3D photo in the current work-up. This will subsequently result in a time
 saving as well as a reduced burden for the patient while acquisition of 3D scans takes only
 10 seconds.
Inclusion Criteria:

 -  All participants of the 3D PECTUS study (METCZ20190048; NCT03926078) that received a
 3D scan and standard photographies.

 Exclusion Criteria:

 -  Participants in which the photography based pectus excavatum depth was measured in the
 transversal plane.