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Inferring the 3D Standing Spine Posture from 2D Radiographs [article]

Amirhossein Bayat, Anjany Sekuboyina, Johannes C. Paetzold, Christian Payer, Darko Stern, Martin Urschler, Jan S. Kirschke, Bjoern H. Menze
2021 arXiv   pre-print
Specifically, we propose a novel neural network architecture working vertebra-wise, termed TransVert, which takes orthogonal 2D radiographs and infers the spine's 3D posture.  ...  This work aims to integrate the two realms, i.e. it combines the upright spinal curvature from radiographs with the 3D vertebral shape from CT imaging for synthesizing an upright 3D model of spine, loaded  ...  Conclusion We propose TransVert, a novel architecture trained to infer a full-3D spine model from 2D sagittal and coronal radiographs and sparse centroid annotations.  ... 
arXiv:2007.06612v2 fatcat:grpvoikpfzdd7fp32bx7lwtlpa

Anatomy-Aware Inference of the 3D Standing Spine Posture from 2D Radiographs

Amirhossein Bayat, Danielle F. Pace, Anjany Sekuboyina, Christian Payer, Darko Stern, Martin Urschler, Jan S. Kirschke, Bjoern H. Menze
2022 Tomography  
We compare the synthesized spine shapes from clinical upright standing radiographs to the same patient's 3D spinal posture in the prone position from CT.  ...  Specifically, we propose a novel neural network architecture, which takes orthogonal 2D radiographs and infers the spine's 3D posture using vertebral shape priors.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/tomography8010039 pmid:35202204 pmcid:PMC8879677 fatcat:4zmky56m2feofho47d5asu5xte

2D measurements of cup orientation are less reliable than 3D measurements (Acta Orthop 2015; 86 (4): 485–90.)

2016 Acta Orthopaedica  
It could be inferred, therefore, that the authors' EBRA data identifi ed multiple cases of possible pseudo-tumours and that standard, 2D radiographic measurements were better than 3D-CT measurements for  ...  , there would seem to be no obvious reason why 3D-CT should be better than an accurate, 2D radiographic technique such as the WCO.  ... 
doi:10.3109/17453674.2016.1156932 pmid:26979301 pmcid:PMC4900089 fatcat:udecgjuwxrbdncfc4tn77grdg4

3D registration of MR and X-ray spine images using an articulated model

Rola Harmouche, Farida Cheriet, Hubert Labelle, Jean Dansereau
2012 Computerized Medical Imaging and Graphics  
3D registration of MR and X-ray spine images using an articulated model.  ...  per vertebra extracted from the MRI data are inferred from the X-ray reconstructions.  ...  They did so by matching 3D gradients of 3D images to 3D gradients coarsely reconstructed from 2D X-ray images. The advantage of this method is that it did not require segmentation.  ... 
doi:10.1016/j.compmedimag.2012.03.003 pmid:22494614 fatcat:ofuhovhzrjgkzaht7avnte6bzq

Comparison of 3D and 2D characterization of spinal geometry from biplanar X-rays: a large cohort study

Zongshan Hu, Claudio Vergari, Laurent Gajny, Zhen Liu, Tsz-Ping Lam, Zezhang Zhu, Yong Qiu, Gene C. W. Man, Kwong-Hang Yeung, Winnie C. W. Chu, Jack C. Y. Cheng, Wafa Skalli
2021 Quantitative Imaging in Medicine and Surgery  
The aim of this study was to compare the newly developed technique of quasi-automatic 3D measurement with classical 2D measurements in a large cohort.  ...  A quasi-automated 3D reconstruction method of the spine from cervical vertebra to pelvis was proposed, which proved fast and accurate in 57 patients with adolescent idiopathic scoliosis.  ...  Acknowledgments The authors are grateful to the ParisTech BiomecAM chair program on subject-speciic musculoskeletal modelling (with the support of ParisTech and Yves Cotrel Foundations, Société Générale  ... 
doi:10.21037/qims-20-861 pmid:34249655 pmcid:PMC8250026 fatcat:dk47oxdvp5hvbch3mjrgcpqhie

Three-dimensional classification of the Lenke 1 adolescent idiopathic scoliosis using coronal and lateral spinal radiographs

Saba Pasha, Victor Ho-Fung, Malcolm Eker, Sarah Nossov, Michael Francavilla
2020 BMC Musculoskeletal Disorders  
Radiologists and orthopedic surgeons were able to identify the 3D subtypes of Lenke 1 AIS from the patients' radiographs with moderate to strong reliability.  ...  Background Classification of the spinal deformity in adolescent idiopathic scoliosis (AIS) remains two-dimensional (2D) as the spinal radiographs remain the mainstay in clinical evaluation of the disease  ...  subtypes using two-view 2D radiographs (PA and lateral) of the spine.  ... 
doi:10.1186/s12891-020-03798-x pmid:33292188 fatcat:jbdq7ytokjc6liaihyq7algehi

An analysis on the determinants of head to pelvic balance in a Chinese adult population

Zongshan Hu, Claudio Vergari, Laurent Gajny, Gene Chi-Wai Man, Kwong-Hang Yeung, Zhen Liu, Tsz-Ping Lam, Zezhang Zhu, Yong Qiu, Winnie Chiu-Wing Chu, Jack Chun-Yiu Cheng, Wafa Skalli
2021 Quantitative Imaging in Medicine and Surgery  
Further analysis showed that sex, weight, TK, PT, SVA, TPA and ODI were determinants of OD-HA. 3D OD-HA angle showed physiological stability with little variability from young to elderly adults, with SD  ...  The key determinants affecting the 3D index-odontoid-hip axis (OD-HA) angle, and in particular its alterations, have not been clearly defined.  ...  Acknowledgments The authors are grateful to the ParisTech BiomecAM chair  ... 
doi:10.21037/qims-21-718 pmid:35371964 pmcid:PMC8923855 fatcat:swrti7jiurblrg3c7ivdprv57u

Non-invasive methods of computer vision in the posture evaluation of adolescent idiopathic scoliosis

Rozilene Maria C. Aroeira, Estevam B. de Las Casas, Antônio Eustáquio M. Pertence, Marcelo Greco, João Manuel R.S. Tavares
2016 Journal of Bodywork & Movement Therapies  
In these studies, the methodological quality varied from low to high.  ...  Purpose: Reviewing techniques for non-invasive postural evaluation of adolescent idiopathic scoliosis (AIS) based on information extraction from images based on computer methods.  ...  As the technique enables evaluations in different body plans, its 2D feature can be alleviated, allowing analysis of inferences in the 3D domain.  ... 
doi:10.1016/j.jbmt.2016.02.004 pmid:27814864 fatcat:fz7pudm6ivchdeo26kggp7vvay

Classification of three-dimensional thoracic deformities in adolescent idiopathic scoliosis from a multivariate analysis

Samuel Kadoury, Hubert Labelle
2011 European spine journal  
from the cohort of 3D spine reconstructions of Lenke Type-1 patients when compared with previous findings on the 3D classification of spinal deformities.  ...  Methods Personalized 3D reconstructions of thoracic (T)/ lumbar (L) spines from a cohort of 170 Lenke Type-1 patients were analyzed with a non-linear manifold embedding algorithm in order to reduce the  ...  natural standing posture [4] .  ... 
doi:10.1007/s00586-011-2004-2 pmid:21879413 pmcid:PMC3252447 fatcat:qo5ygddtcngcdbys72oam247ma

Personalized 3D reconstruction of the rib cage for clinical assessment of trunk deformities

Sébastien Grenier, Stefan Parent, Farida Cheriet
2013 Medical Engineering and Physics  
Scoliosis is a 3D deformity of the spine and rib cage. Extensive validation of 3D reconstruction methods of the spine from biplanar radiography has already been published.  ...  Abstract Scoliosis is a 3D deformity of the spine and rib cage. Extensive validation of 3D reconstruction methods of the spine from biplanar radiography has already been published.  ...  Acknowledgments The authors would like to thank Philippe Debanné and Lama Séoud for their valuable help and useful comments.  ... 
doi:10.1016/j.medengphy.2013.06.002 pmid:23830740 fatcat:le2x3sjgz5ewhmmd45g6z52p5i

The EOS™ imaging system and its uses in daily orthopaedic practice

Tamás Illés, Szabolcs Somoskeöy
2012 International Orthopaedics  
Visualisation of 3D reconstructed models in various views by sterEOS 3D software enables presentation of top view images to help analyse rotational conditions of lower limbs, joints and spine deformities  ...  in the horizontal plane, providing revolutionary novel possibilities in orthopaedic surgery, especially in spine surgery.  ...  of the EOS™ 2D/3D system.  ... 
doi:10.1007/s00264-012-1512-y pmid:22371113 pmcid:PMC3385897 fatcat:hc42mz2pkbe3lf4g7pzlvdndjy

A Novel Method for the 3-D Reconstruction of Scoliotic Ribs From Frontal and Lateral Radiographs

L Seoud, F Cheriet, H Labelle, J Dansereau
2011 IEEE Transactions on Biomedical Engineering  
A novel method for the 3D reconstruction of the rib cage, based only on two standard radiographs, is proposed in this article.  ...  For each rib, two points are extrapolated from the reconstructed spine, and three points are reconstructed by stereo radiography. The reconstruction is then refined using a surface approximation.  ...  ACKNOWLEDGMENT The authors would like to thanks P. Debanné for revising this manuscript and C. Bellefleur for his technical contribution.  ... 
doi:10.1109/tbme.2009.2032530 pmid:19789100 fatcat:3yz3lquqgffbjlckuxi7hfgdty

Cervical Spine Muscle-Tendon Unit Length Differences Between Neutral and Forward Head Postures: Biomechanical Study Using Human Cadaveric Specimens

Saeed Khayatzadeh, Olivia A. Kalmanson, Dale Schuit, Robert M. Havey, Leonard I. Voronov, Alexander J. Ghanayem, Avinash G. Patwardhan
2017 Physical Therapy  
Forward head posture was associated with flexion of the mid-lower cervical spine and extension of the upper cervical (sub-occipital) spine.  ...  Specimen-specific anatomic models derived from computed tomography-based anatomic data were combined with postural data and specimen-specific anatomy of muscle attachment points to estimate the muscle  ...  Author Contributions Data from 10 of the 13 specimens tested were previously reported in the literature in support of additional hypotheses. 6, 42,43 DOI: 10.1093/ptj/pzx040  ... 
doi:10.1093/ptj/pzx040 pmid:28444241 fatcat:u6kknk64gzcavcoyfqbkpyucam

Effects of Standing on Spinal Alignment and Lumbar Intervertebral Discs in Young, Healthy Individuals Determined by Positional Magnetic Resonance Imaging [article]

Christian I Weber, Ching-Ting Hwang, Linda R Van Dillen, Simon Y Tang
2019 bioRxiv   pre-print
Therefore, we seek to quantify the changes from supine to standing in the spines of young, healthy individuals in standing using a positional MRI system.  ...  However, the spine is subjected to complex loading environments in daily activities such as standing.  ...  Postural Changes of the 294 Dural Sac in the Lumbar Spines of Asymptomatic Individuals Using Positional Stand-Up Magnetic 295 Resonance Imaging: Spine 32: E136-E140, 2007. 296 17.  ... 
doi:10.1101/522565 fatcat:zqekftunprdupcbhzzbb6pk2ei

Factors influencing spinal curvature measurements on ultrasound images for children with adolescent idiopathic scoliosis (AIS)

Rui Zheng, Doug Hill, Douglas Hedden, James Mahood, Marc Moreau, Sarah Southon, Edmond Lou, Robert Daniel Blank
2018 PLoS ONE  
instead of inferring the Cobb angle from the AVR.  ...  The standard clinical practice to diagnose and monitor AIS is to measure the Cobb angle on a standing posteroanterior (PA) radiograph.  ...  This posture was similar to the one used during radiography. A transducer was pushed against the subject's back and moved downward from C7 to L5 along the curve of the spine in a standing position.  ... 
doi:10.1371/journal.pone.0198792 pmid:29912905 pmcid:PMC6005491 fatcat:unqh5jmdnvczhm4462xe2fxcnu
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