Automatic Calculation of Cervical Spine Parameters Using Deep Learning: Development and Validation on an External Dataset
Open access
Datum
2023Typ
- Journal Article
ETH Bibliographie
yes
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Abstract
Study design: Retrospective data analysis.
Objectives: This study aims to develop a deep learning model for the automatic calculation of some important spine parameters from lateral cervical radiographs.
Methods: We collected two datasets from two different institutions. The first dataset of 1498 images was used to train and optimize the model to find the best hyperparameters while the second dataset of 79 images was used as an external validation set to evaluate the robustness and generalizability of our model. The performance of the model was assessed by calculating the median absolute errors between the model prediction and the ground truth for the following parameters: T1 slope, C7 slope, C2-C7 angle, C2-C6 angle, Sagittal Vertical Axis (SVA), C0-C2, Redlund-Johnell distance (RJD), the cranial tilting (CT) and the craniocervical angle (CCA).
Results: Regarding the angles, we found median errors of 1.66° (SD 2.46°), 1.56° (1.95°), 2.46° (SD 2.55), 1.85° (SD 3.93°), 1.25° (SD 1.83°), .29° (SD .31°) and .67° (SD .77°) for T1 slope, C7 slope, C2-C7, C2-C6, C0-C2, CT, and CCA respectively. As concerns the distances, we found median errors of .55 mm (SD .47 mm) and .47 mm (.62 mm) for SVA and RJD respectively.
Conclusions: In this work, we developed a model that was able to accurately predict cervical spine parameters from lateral cervical radiographs. In particular, the performances on the external validation set demonstrate the robustness and the high degree of generalizability of our model on images acquired in a different institution. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000638253Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
Global Spine JournalVerlag
SAGEThema
radiology; deep learning; landmarks localization; automatic parameters calculation cervival radiographs; cervical spineOrganisationseinheit
09769 - Jutzeler, Catherine / Jutzeler, Catherine
ETH Bibliographie
yes
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