Three-dimensional head shape acquisition in preterm infants - Translating an orthodontic imaging procedure into neonatal care. (January 2020)

• Record Type: Journal Article
• Authors: Santander, P.; Quast, A.; Hubbert, J.; Horn, S.; Meyer-Marcotty, P.; Küster, H.; Dieks, J.K.
• Is Part Of: Early human development. Volume 140(2020)
• Publication Date: 2020-01
• Subjects: Cephalometry -- Three-dimensional -- Stereophotogrammetry -- Preterm infant -- Head shape; 2D two-dimensional -- 3D three-dimensional -- CrI cranial index -- CrV cranial volume -- CT computed tomography -- CV coefficient of variation -- CVAI cranial vault asymmetry index -- HC head circumference -- ICP iterative closes point -- MRI magnetic resonance imaging -- PCAI posterior cranial asymmetry index -- STL stereolithography; Fetus -- Periodicals; Neonatology -- Periodicals; Prenatal influences -- Periodicals; 612.65
• DOI: 10.1016/j.earlhumdev.2019.104908
• Languages: English
• ISSNs: 0378-3782

Abstract

Abstract: Background: Head shape and head volume of preterm infants give important information on short- and long-term development. Three-dimensional (3D) assessment of a preterm infant's head would therefore provide more information than currently used two-dimensional methods. Aims: To evaluate a contactless 3D imaging system to assess head shape and volume in preterm infants. Methods: A protocol for 3D imaging and reconstruction of an infant's head with a portable stereophotogrammetric camera system was developed. It was validated on a manikin by comparison to an established stationary stereophotogrammetric device. Feasibility for clinical routine and 3D data analysis were assessed in six preterm infants. Results: Ten 3D reconstructions from a manikin were done with ten images each taken from different angles. The accuracy of the 3D reconstruction was measured at the overlapping areas between two images. Comparing the portable to the stationary system, a high concordance was found for the 3D manikin head-reconstructions (mean difference 0.21 ± 0.03 mm). In preterm infants, digital evaluation of the head was proven to be feasible for head circumference (HC), cranial index and asymmetry indices. There was good concordance between manual and digital measurement of the HC (95% CI −0.85 to 0.38 mm). Conclusions: The portable camera system allowed fast and contactless 3D image capture of a preterm infant's head without any risk or interference with neonatal care. Together with a new software, this technique would allow more precise evaluation of head growth even in very preterm infants and thereby may improve their care and long-term outcome. Highlights: Portable stereophotogrammetric imaging system validated for preterm infants. Detailed protocol on how to use the portable camera system is given. Method allows a fast and contactless 3D image capture of the preterm infant head. Feasibility was given during clinical routine on the neonatal ward. Long processing time for manual image reconstruction is still a disadvantage.