Portable optically tracked ultrasound system for scoliosis measurement

Guillermo Carbajal, Álvaro Gómez, Gabor Fichtinger, Tamas Ungi

Research output: Contribution to journalArticlepeer-review


Monitoring spinal curvature in adolescent kyphoscoliosis requires regular radiographic examinations; however, the applied ionizing radiation increases the risk of cancer. Ultrasound imaging is favorable over X-ray because it does not emit ionizing radiation. It has been shown in the past that tracked ultrasound can be used to localize vertebral transverse processes as landmarks along the spine to measure curvature angles. Tests have been performed with spine phantoms, but scanning protocol, tracking system, data acquisition and processing time has not been considered in human subjects yet. In this paper, a portable optically tracked ultrasound system for scoliosis measurement is presented. It provides a simple way to acquire data in the clinical environment with the aim of comparing results to current X-ray-based measurement. The workflow of the procedure was tested on volunteers. The customized open-source software is shared with the community as part of our effort to make a clinically practical system.

Original languageEnglish (US)
Pages (from-to)37-46
Number of pages10
JournalLecture Notes in Computational Vision and Biomechanics
StatePublished - 2015
Externally publishedYes


  • Adolescent idiopathic kyphoscoliosis
  • Kyphosis
  • Scoliosis
  • Tracked sonography
  • Tracked ultrasound snapshot

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Artificial Intelligence
  • Computer Science Applications
  • Computer Vision and Pattern Recognition
  • Mechanical Engineering


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