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Updated: Jun 11, 2026
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Nine-Grid Area Division Method: A New Ideal Bone Puncture Region for Percutaneous Vertebroplasty in Lumbar Spine
Published on: August 9, 2024
Automated cement segmentation in vertebroplasty
Nina Kozic1, Stefan Weber, Miguel A González Ballester
1Institute for Surgical Technology and Biomechanics, University of Bern, Bern, Switzerland. kozic.nina@gmail.com
Summary
This study introduces an automated method to track bone cement during vertebroplasty, aiming to prevent serious complications from cement leakage. The technique accurately detects cement, even with unclear boundaries, aiding surgeons.
Area of Science:
- Medical Imaging
- Surgical Technology
- Biomedical Engineering
Background:
- Vertebroplasty is a minimally invasive procedure with significant benefits.
- Cement leakage during vertebroplasty poses serious risks, including neurological complications and pulmonary embolism.
Purpose of the Study:
- To develop an automatic method for segmenting and tracking bone cement during vertebroplasty.
- To create a foundational system for early detection and prevention of cement leakage.
Main Methods:
- Utilized active contours based on level sets for cement detection.
- Improved the segmentation model by incorporating a term to confine the level set function within the vertebral body.
- Applied the method to real intra-operative X-ray images.
Main Results:
- The algorithm accurately detected the shape of injected bone cement.
- Successfully segmented cement with blurred and ill-defined boundaries, outperforming classical active contours.
- The method was positively evaluated by physicians.
Conclusions:
- The developed method provides accurate automatic segmentation and tracking of bone cement.
- This technique is a crucial first step towards an effective warning system to prevent cement leakage during vertebroplasty.
- The approach shows promise for enhancing surgical safety in vertebroplasty procedures.
