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Estimating Lumbar Spine Foraminal Disc Measurements Using Ultrasound and X-Ray Imaging Through Advanced Image
Chandra Bhagi1, Maruti Ram Gudavalli1, Ralph A Kruse1
1Research Department, College of Chiropractic Medicine, Keiser University, West Palm Beach, FL 33411, USA.
Bioengineering (Basel, Switzerland)
|March 28, 2026
Summary
This study developed a new method to align spinal measurements from X-ray and ultrasound imaging. This approach enhances diagnostic accuracy for spinal disorders by bridging static and real-time data.
Area of Science:
- Biomedical Engineering
- Radiology
- Spinal Biomechanics
Background:
- Accurate spinal metrics are crucial for diagnosing and treating spinal disorders.
- Discrepancies between X-ray and ultrasound imaging challenge clinical assessment standardization.
- Current imaging methods may not fully capture dynamic spinal changes.
Purpose of the Study:
- To introduce a novel methodology for aligning spinal metrics from X-ray and ultrasound modalities.
- To address discrepancies between static and real-time spinal imaging data.
- To enhance diagnostic accuracy and clinical relevance in spinal assessments.
Main Methods:
- Combined geometric scaling factors and extrapolation techniques to align spinal metrics.
- Collected data from 15 healthy adults undergoing a standardized chiropractic traction protocol.
- Utilized X-ray and ultrasound imaging at L3-L4, L4-L5, and L5-S1 levels under graded traction forces.
Main Results:
- Demonstrated consistent increases in spinal metrics (height, area) under progressive traction weights.
- Indicated positive spinal elongation and flexibility with increasing loads.
- Successfully standardized measurements across pre- and during-procedure conditions using extrapolation.
Conclusions:
- The novel methodology effectively bridges the gap between static (X-ray) and real-time (ultrasound) spinal imaging data.
- This approach has the potential to improve diagnostic accuracy for spinal disorders.
- The study provides a foundation for standardized spinal imaging protocols and broader applications.

