Automatic spinal curvature measurement on ultrasound spine images using Faster R-CNN

2021 ◽  
Author(s):  
Zhichao Liu ◽  
Liyue Qian ◽  
Wenke Jing ◽  
Desen Zhou ◽  
Xuming He ◽  
...  
Keyword(s):  
Spinal Curvature ◽  
Curvature Measurement

Spinal Curvature Measurement by Tracked Ultrasound Snapshots

2014 ◽  
Vol 40 (2) ◽  
pp. 447-454 ◽  
Author(s):  
Tamas Ungi ◽  
Franklin King ◽  
Michael Kempston ◽  
Zsuzsanna Keri ◽  
Andras Lasso ◽  
...  
Keyword(s):  
Spinal Curvature ◽  
Tracked Ultrasound ◽  
Curvature Measurement

Clinical workflow for spinal curvature measurement with portable ultrasound

2016 ◽  
Author(s):  
Reza Tabanfar ◽  
Christina Yan ◽  
Michael Kempston ◽  
Daniel Borschneck ◽  
Tamas Ungi ◽  
...  
Keyword(s):  
Spinal Curvature ◽  
Clinical Workflow ◽  
Portable Ultrasound ◽  
Curvature Measurement

Localization of the transverse processes in ultrasound for spinal curvature measurement

2017 ◽  
Author(s):  
Shahrokh Kamali ◽  
Tamas Ungi ◽  
Andras Lasso ◽  
Christina Yan ◽  
Matthew Lougheed ◽  
...  
Keyword(s):  
Spinal Curvature ◽  
Curvature Measurement

Comparison of portable and conventional ultrasound imaging in spinal curvature measurement

2016 ◽  
Author(s):  
Christina Yan ◽  
Reza Tabanfar ◽  
Michael Kempston ◽  
Daniel Borschneck ◽  
Tamas Ungi ◽  
...  
Keyword(s):  
Ultrasound Imaging ◽  
Spinal Curvature ◽  
Curvature Measurement ◽  
Conventional Ultrasound

scholarly journals Computerized image understanding system for reliable estimation of spinal curvature in idiopathic scoliosis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ananthakrishna Thalengala ◽  
Shyamasunder N. Bhat ◽  
H. Anitha
Keyword(s):  
Spinal Deformity ◽  
Medial Axis ◽  
Image Understanding ◽  
Spinal Curvature ◽  
Absolute Difference ◽  
Computer Assisted ◽  
Type I ◽  
Observer Variability ◽  
Curvature Estimation ◽  
Accuracy And Repeatability

AbstractAnalysis of scoliosis requires thorough radiographic evaluation by spinal curvature estimation to completely assess the spinal deformity. Spinal curvature estimation gives orthopaedic surgeons an idea of severity of spinal deformity for therapeutic purposes. Manual intervention has always been an issue to ensure accuracy and repeatability. Computer assisted systems are semi-automatic and is still influenced by surgeon’s expertise. Spinal curvature estimation completely relies on accurate identification of required end vertebrae like superior end-vertebra, inferior end-vertebra and apical vertebra. In the present work, automatic extraction of spinal information central sacral line and medial axis by computerized image understanding system has been proposed. The inter-observer variability in the anatomical landmark identification is quantified using Kappa statistic. The resultant Kappa value computed between proposed algorithm and observer lies in the range 0.7 and 0.9, which shows good accuracy. Identification of the required end vertebra is automated by the extracted spinal information. Difference in inter and intra-observer variability for the state of the art computer assisted and proposed system are quantified in terms of mean absolute difference for the various types (Type-I, Type-II, Type-III, Type-IV, and Type-V) of scoliosis.

Design and fabrication of anisotropic textile brace for exerting corrective forces on spinal curvature

2021 ◽  
pp. 152808372110326
Author(s):  
Queenie Fok ◽  
Joanne Yip ◽  
Kit-lun Yick ◽  
Sun-pui Ng
Keyword(s):  
Medical Condition ◽  
Three Dimensional ◽  
Case Series ◽  
The Body ◽  
Spinal Curvature ◽  
Radiographic Examination ◽  
Interface Pressure ◽  
Pressure System ◽  
Case Series Study ◽  
Point Pressure

This study focuses on the fabrication of an anisotropic textile brace that exerts corrective forces based on the three-point pressure system to treat scoliosis, which is a medical condition that involves deformity of the spine. The design and material properties of the proposed anisotropic textile brace are discussed in detail here. A case series study with 5 scoliosis patients has been conducted to investigate the immediate in-brace effect and biomechanics of the proposed brace. Radiographic examination, three-dimensional scanning of the body and interface pressure measurements have been used to evaluate the immediate effect of the proposed brace on reducing the spinal curvature and asymmetry of the body contours and its biomechanics. The results show that the proposed brace on average reduces the spinal curvature by 11.7° and also increases the symmetry of the posterior trunk by 14.1% to 43.2%. The interface pressure at the corrective pad ranges from 6.0 to 24.4 kPa. The measured interface pressure shows that a sufficient amount of pressure has been exerted and a three-point pressure distribution is realized to reduce the spinal curvature. The obtained results indicate the effectiveness of this new approach which uses elastic textile material and a hinged artificial backbone to correct spinal deformity.

scholarly journals Muscle Changes in Lambs with Surgically Created Scoliosis Produced in Utero

1978 ◽  
Vol 5 (3) ◽  
pp. 283-287 ◽  
Author(s):  
G.M. Kent ◽  
W. Zingg ◽  
D. Armstrong
Keyword(s):  
Musculoskeletal Diseases ◽  
Fiber Type ◽  
Surgical Techniques ◽  
Spinal Curvature ◽  
Surgical Trauma ◽  
Developmental Defect ◽  
Type I ◽  
Type Ii ◽  
Muscle Changes ◽  
Type Ii Fibers

SUMMARY:Spinal curves may be produced in fetal lambs with three surgical techniques. These procedures vary from mere exposure of the costo-vertebral junction of three ribs through a paravertebral incision, to resection of the head and part of the adjacent shaft of three ribs. The fetal age varies from forty-nine to seventy-three days. The degree of curvature present at birth seems to increase in severity with decreasing fetal age at the time of surgery, but the type of surgical procedure does not appear to influence the severity of the curve, suggesting that the mechanical presence of the ribs does not prevent the development of scoliosis in these animals.Histological studies of the m. longissimus dorsi at the apices of the curves reveal two main types of abnormality in the muscle fibers. Both Type I and Type II fibers were significantly reduced in size in the biopsies taken from the side on which the surgery was performed, and there was marked alteration in the proportion of one fiber type to the other in most biopsies taken from both operated sides when compared with biopsies from unoperated twin animals.The fetal age and amount of surgical trauma appeared to play no role in the degree of muscle alteration, suggesting that even minimal surgical trauma to the paraspinal region at any fetal age between 49–73 days is sufficient to produce significant muscle fiber abnormality and spinal curvature.A parallel is drawn between these muscle findings and those in a number of human musculoskeletal diseases, and suggests the possibility of a developmental defect in the pathogenesis of these diseases.

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