Evaluation of the Morphometric Reliability of Umbilical Cord Vessels’ 3D Models

The aim was to create a three-dimensional model of the umbilical cord vessels of newborns, taking into account their individual morphometric features and evaluation the compliance of the morphometric parameters of the 3D model and the corrosion preparation. Material and methods. The material for the study included the umbilical cord vessels of full-term newborns whose status at birth was estimated at ≥7 points on the Apgar scale, in the amount of 20 samples, 10 cm long. The first stage of the study was the production of corrosion preparations based on the dental material “Belakril”-M XO. Then the corrosion preparations were scanned on a 3D scanner RangeVision SPECTRUM (Russia) on a rotary table at a speed of 24°/s. As a result, 3D models of umbilical cord vessels were obtained in the ScanCenter NG 2022 program.The number of turns in a given area was counted, the distance between the turns of the umbilical cord vessels was measured on corrosion preparations using an electronic caliper, the distance between the “artery and vein” complexes, the circumference of the umbilical cord vessel complex was measured with a centimeter tape, and the internal diameter of the arteries and veins was measured with a micrometer. Measurements of 3D models were taken in the Blender 4.2. STL program. Statistical data processing was carried out in the Statistica 10 program. Results. On the corrosion specimen and 3D model, the number of turns on the examined section of the umbilical cord with a length of 10 cm did not exceed two. The distance between the turns was 45 mm. The distance between adjacent “artery and vein” complexes was 45 mm. The internal diameter of the arteries and veins was 2.6 mm and 7.3 mm, respectively. Comparison of the morphometric parameters of the corrosion preparation and the 3D model showed no statistically significant differences. This observation may indicate the methodological accuracy and adequacy of the technology for constructing 3D models from the corrosion preparation. Conclusion. The morphometric parameters of computer 3D models of the umbilical cord vessels of full-term newborns created using the RangeVision SPECTRUM 3D scanner are identical to those of corrosive preparations. Such models can be used in the future as a basis for setting up biophysical experiments and for creating computer simulations.

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