期刊
EUROPEAN SPINE JOURNAL
卷 31, 期 8, 页码 2031-2045出版社
SPRINGER
DOI: 10.1007/s00586-022-07155-5
关键词
Sagittal balance; Spinopelvic measurements; Artificial intelligence; Deep learning; Predictive analytics; Systematic review
资金
- Slovenian Research Agency [P2-0232]
The study summarizes and critically evaluates the existing studies of spinopelvic measurements of sagittal balance that are based on deep learning (DL). The results show that the application of complex DL architectures improves the measurement accuracy of spinopelvic parameters, with excellent performance against manual measurements. However, future methods should focus on multi-institution and multi-observer analyses, as well as uncertainty estimation and error handling implementations.
Purpose To summarize and critically evaluate the existing studies for spinopelvic measurements of sagittal balance that are based on deep learning (DL). Methods Three databases (PubMed, WoS and Scopus) were queried for records using keywords related to DL and measurement of sagittal balance. After screening the resulting 529 records that were augmented with specific web search, 34 studies published between 2017 and 2022 were included in the final review, and evaluated from the perspective of the observed sagittal spinopelvic parameters, properties of spine image datasets, applied DL methodology and resulting measurement performance. Results Studies reported DL measurement of up to 18 different spinopelvic parameters, but the actual number depended on the image field of view. Image datasets were composed of lateral lumbar spine and whole spine X-rays, biplanar whole spine X-rays and lumbar spine magnetic resonance cross sections, and were increasing in size or enriched by augmentation techniques. Spinopelvic parameter measurement was approached either by landmark detection or structure segmentation, and U-Net was the most frequently applied DL architecture. The latest DL methods achieved excellent performance in terms of mean absolute error against reference manual measurements (similar to 2 degrees or similar to 1 mm). Conclusion Although the application of relatively complex DL architectures resulted in an improved measurement accuracy of sagittal spinopelvic parameters, future methods should focus on multi-institution and multi-observer analyses as well as uncertainty estimation and error handling implementations for integration into the clinical workflow. Further advances will enhance the predictive analytics of DL methods for spinopelvic parameter measurement.
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