Scaled, patient-specific 3D vertebral model reconstruction based on 2D lateral fluoroscopy
| Autor: | Stephen J. Ferguson, Lutz-Peter Nolte, Guoyan Zheng |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Models
Anatomic musculoskeletal diseases medicine.medical_specialty Computer science Biomedical Engineering Health Informatics Kinematics Lumbar vertebrae Surgical planning Lumbar Imaging Three-Dimensional medicine Cadaver Fluoroscopy Humans Radiology Nuclear Medicine and imaging Computer vision Segmentation Rigid transformation Ground truth Lumbar Vertebrae Models Statistical medicine.diagnostic_test business.industry General Medicine Computer Graphics and Computer-Aided Design Computer Science Applications Biomechanical Phenomena medicine.anatomical_structure Radiographic Image Interpretation Computer-Assisted Surgery Computer Vision and Pattern Recognition Radiology Artificial intelligence business Tomography X-Ray Computed |
| Zdroj: | Zheng, G; Nolte, L.P.; Ferguson, S.J. (2011). Scaled, patient-specific 3D vertebral model reconstruction based on 2D lateral fluoroscopy. International Journal of Computer Assisted Radiology and Surgery, 6(3), pp. 351-366. Berlin: Springer-Verlag 10.1007/s11548-010-0515-7 |
| DOI: | 10.1007/s11548-010-0515-7 |
| Popis: | Backgrounds: Accurate three-dimensional (3D) models of lumbar vertebrae are required for image-based 3D kinematics analysis. MRI or CT datasets are frequently used to derive 3D models but have the disadvantages that they are expensive, time-consuming or involving ionizing radiation (e.g., CT acquisition). An alternative method using 2D lateral fluoroscopy was developed. Materials and methods: A technique was developed to reconstruct a scaled 3D lumbar vertebral model from a single two-dimensional (2D) lateral fluoroscopic image and a statistical shape model of the lumbar vertebrae. Four cadaveric lumbar spine segments and two statistical shape models were used for testing. Reconstruction accuracy was determined by comparison of the surface models reconstructed from the single lateral fluoroscopic images to the ground truth data from 3D CT segmentation. For each case, two different surface-based registration techniques were used to recover the unknown scale factor, and the rigid transformation between the reconstructed surface model and the ground truth model before the differences between the two discrete surface models were computed. Results: Successful reconstruction of scaled surface models was achieved for all test lumbar vertebrae based on single lateral fluoroscopic images. The mean reconstruction error was between 0.7 and 1.6mm. Conclusions: A scaled, patient-specific surface model of the lumbar vertebra from a single lateral fluoroscopic image can be synthesized using the present approach. This new method for patient-specific 3D modeling has potential applications in spine kinematics analysis, surgical planning, and navigation |
| Databáze: | OpenAIRE |
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