Point cloud registration for measuring shape dependence of soft tissue deformation by digital twins in head and neck surgery
Introduction: A 2½ D point cloud registration method was developed to generate digital twins of different tissue shapes and resection cavities by applying a machine learning (ML) approach. This demonstrates the feasibility of quantifying soft tissue shifts. Methods: An ML model was trained using sim...
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| Main Authors: | , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
January-December 2024
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| In: |
Biomedicine hub
Year: 2024, Volume: 9, Issue: 1, Pages: 9-15 |
| ISSN: | 2296-6870 |
| DOI: | 10.1159/000535421 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1159/000535421
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| Author Notes: | Sara Monji-Azad, David Männle, Jürgen Hesser, Jan Pohlmann, Nicole Rotter, Annette Affolter, Cleo Aron Weis, Sonja Ludwig, Claudia Scherl |
| Summary: | Introduction: A 2½ D point cloud registration method was developed to generate digital twins of different tissue shapes and resection cavities by applying a machine learning (ML) approach. This demonstrates the feasibility of quantifying soft tissue shifts. Methods: An ML model was trained using simulated surface scan data obtained from tumor resections in a pig head cadaver model. It hereby uses 438 2½ D scans of the tissue surface. Tissue shift was induced by a temperature change from 7.91 ± 4.1°C to 36.37 ± 1.28°C. Results: Digital twins were generated from various branched and compact resection cavities (RCs) and cut tissues (CT). A temperature increase induced a tissue shift with a significant volume increase of 6 mL and 2 mL in branched and compact RCs, respectively (p = 0.0443; 0.0157). The volumes of branched and compact CT were decreased by 3 and 4 mL (p < 0.001). In the warm state, RC and CT no longer fit together because of the significant tissue deformation. Although not significant, the compact RC showed a greater tissue deformation of 1 μL than the branched RC with 0.5 μL induced by the temperature change (p = 0.7874). The branched and compact CT forms responded almost equally to changes in temperature (p = 0.1461). Conclusions: The simulation experiment of induced soft tissue deformation using digital twins based on 2½ D point cloud models proved that our method helps to quantify shape-dependent tissue shifts. |
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| Item Description: | Online veröffentlicht: 9. Januar 2024 Gesehen am 10.04.2025 |
| Physical Description: | Online Resource |
| ISSN: | 2296-6870 |
| DOI: | 10.1159/000535421 |