Semi-automatic measurement of scoliotic angle using a freehand 3-D ultrasound system scolioscan

Guang Quan Zhou, Wei Wei Jiang, Ka Lee Lai, Tsz Ping Lam, Jack Chun Yiu Cheng, Yongping Zheng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

Ultrasound volume projection imaging (VPI), developed with free-hand 3-D ultrasound system, has been advanced to assess scoliosis, a medical condition defined as lateral spine curvature > 10°. Ultrasound VPI provides a coronal view of spine for manual measurement of spine curvature, achieving a performance comparable to the standard posteroanterior standing radiograph. However, the subjective manual measurements still restricted its wider applications in the diagnosis of scoliosis. In this study, we proposed a semi-automatic method to assess the spine curvature by using the polynomial curve fitting to the manual input curve points perceived on the spinous column profile in VPI images obtained from the Scolioscan, a freehand 3-D ultrasound system. The spine curvature angle was automatically calculated according to the inflection points on the curve. Totally 70 subjects (age: 15.9 ± 2.7 years) with different degrees of scoliosis were recruited to evaluate the performance of proposed semi-automatic measurement method. The curvatures obtained using the semi-automatic method had a significant correlation with those by the manual method (slope = 0.96, r = 0.9; p < 0.001). The proposed semi-automatic framework is capable of measuring the spine curvature based on the coronal images obtained with free-hand 3-D ultrasound system, expediting the application of Scolioscan in scoliosis diagnosis.
Original languageEnglish
Title of host publicationXIV Mediterranean Conference on Medical and Biological Engineering and Computing, MEDICON 2016
PublisherSpringer Verlag
Pages341-346
Number of pages6
Volume57
ISBN (Print)9783319327013
DOIs
Publication statusPublished - 1 Jan 2016
Event14th Mediterranean Conference on Medical and Biological Engineering and Computing, MEDICON 2016 - Paphos, Cyprus
Duration: 31 Mar 20162 Apr 2016

Conference

Conference14th Mediterranean Conference on Medical and Biological Engineering and Computing, MEDICON 2016
Country/TerritoryCyprus
CityPaphos
Period31/03/162/04/16

Keywords

  • Freehand 3-D ultrasound
  • Polynomial curve fitting
  • Scoliosis
  • Volume projection imaging

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering

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