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Normalized Cuts in 3-D for Spinal MRI Segmentation

J. Carballido-Gamio, S.J. Belongie, S. Majumdar
2004 IEEE Transactions on Medical Imaging  
Dunn for his help in proofreading this paper.  ...  Fig. 4 shows an example of 3-D local histograms of brightness for voxels corresponding to different anatomical structures of a sagittal T1-weighted MR image of the spine. 5) Normalized Cuts and the  ...  The selection of 3-D local histograms of brightness as the segmentation feature for this paper was done because we thought that a 3-D feature would increase robustness in the segmentation technique, and  ... 
doi:10.1109/tmi.2003.819929 pmid:14719685 fatcat:wm4ozw4yurgunesadttxx443ga

MRI and Anatomical Determinants Affecting Neuroforaminal Stenosis Evaluation: A Descriptive Observational Study

Sayed E Wahezi, Terence Hillery, Rene Przkora, Tim Lubenow, Tim Deer, Chong Kim, Dawood Sayed, Jonathan Krystal, Merritt Kinon, Kishan Sitapara, Kim Nguyen, Daniel Wong (+1 others)
2022 Journal of Pain Research  
When this cannot be performed due to a patient's spine rotation or position, the MRI reader should view oblique, axial, and coronal images simultaneously and dynamically for proper foraminal characterization  ...  Four volunteers underwent lumbar spine MRI twice, once in the supine position and once with intentionally introduced hip tilt.  ...  At the upper third, where the spinal nerve resides, a cut demonstrated normal neuroforaminal caliber.  ... 
doi:10.2147/jpr.s360847 pmid:35637764 pmcid:PMC9148210 fatcat:jpomlu5f7ffqrlttv65hllgeqq

The role of cerebrospinal fluid cross-section area ratio in the prediction of dural ossification and clinical outcomes in patients with thoracic ossification of ligamentum flavum

Jiliang Zhai, Shigong Guo, Yu Zhao, Chunxu Li, Tong Niu
2021 BMC Musculoskeletal Disorders  
No significant differences were found in sex, age, segment of maximum compression and preoperative mJOA score between the two groups.  ...  Conclusion The value of CCAR had a high diagnostic value for prediction of DO and neurological function recovery rate in patients with OLF.  ...  (A) Normal spinal canal at the pedicle level of the maximum compression segment. (B) Cross-section area (CSA) of the normal spinal canal.  ... 
doi:10.1186/s12891-021-04574-1 fatcat:ecw5efwforadzaxpcgidkdh5hq

Preliminary animal studies on observation of injured spinal cord with intraoperative ultrasound backscatter microscopy

HaiJun Niu, LiFeng Li, Kai Liao, XiaoGuang Li, YuBo Fan
2012 Chinese Science Bulletin  
After laminectomy, high-resolution ultrasound images of the spinal cord were obtained in one normal and seven spinal cord-injured adult Wistar rats using a UBM system with a 55-MHz center frequency scanner  ...  UBM has obvious clinical value in nerve regeneration and cell-based transplantation strategies in injured spinal cords. ultrasound backscatter microscopy, spinal cord injury, cyst, glial scar Citation:  ...  The spinal tissue, including the lesional area, could be seen under a dissecting microscope. A spinal cord segment of approximately 4 cm was cut off using scissors.  ... 
doi:10.1007/s11434-012-5219-7 fatcat:m4euodfzg5eebmmefarux5quiy

A Case of Primary Endobronchial Neurilemmoma Without Intraspinal Extension

Mi Young Kim, Hyun Ji Kim, Ah Lim Kim, Hyeong Seok Kim, Hyun Woong Shin, Seung Wook Jeong
2012 Yeungnam University Journal of Medicine  
MRI) of the chest.  ...  A 3.0 × 2.6 cm mass in the right lower lobe projecting into the mediobasal segmental bronchus was shown in the results of the contrast-enhanced computed tomography (CT) and magnetic resonance imaging (  ...  The bronchoscopic view shows a polypoid protruding mass in the mediobasal segmental bronchus (D).  ... 
doi:10.12701/yujm.2012.29.1.54 fatcat:dmjjtvkpofh7fix7w2ba2kjd5u

Framework for integrated MRI average of the spinal cord white and gray matter: The MNI–Poly–AMU template

V.S. Fonov, A. Le Troter, M. Taso, B. De Leener, G. Lévêque, M. Benhamou, M. Sdika, H. Benali, P.-F. Pradat, D.L. Collins, V. Callot, J. Cohen-Adad
2014 NeuroImage  
The field of spinal cord MRI is lacking a common template, as existing for the brain, which would allow extraction of multi-parametric data (diffusion-weighted, magnetization transfer, etc.) without user  ...  The template can notably be used for measurements of spinal cord cross-sectional area, voxel-based morphometry, identification of anatomical features (e.g., vertebral levels, white and gray matter location  ...  Acknowledgements The authors thank Kevin Nigaud (CENIR), Carollyn Hurst and André Cyr (CRIUGM) for assistance with MRI acquisitions.  ... 
doi:10.1016/j.neuroimage.2014.08.057 pmid:25204864 fatcat:lquuachaybffdbzfxsjo5povgq

Spinal Cord Herniation: Why Anterior Thoracic?

Anna Szucs, Andras Horvath, Peter Varallyay
2015 Journal of Neurology and Neuroscience  
The traction may tear the anterior dura; resulting in a dural defect; it allows the nipping/ protrusion of the spinal cord.  ...  Summary: We present the main features of the condition by our case series and forward a hypothesis for the consistent anterior, mid-thoracic localization.  ...  Figure 3 3 Figure 3 Sagittal (A) and axial T2-weighted images (B,C,D).  ... 
doi:10.21767/2171-6625.s10012 fatcat:4agifqbzpvccvmnqxe5mqa335e

Intervertebral focal surgery for the treatment of non-contiguous multifocal spinal tuberculosis

Jian-Dang Shi, Zi-Li Wang, Guang-Qi Geng, Ning-Kui Niu
2012 International Orthopaedics  
The levels of erythrocyte sedimentation rate and C-reactive protein returned to normal in 27 cases on average at 5.8 months and bone union could be observed at five months after surgery.  ...  Conclusions Intervertebral focal surgery by complete debridement, deformity correction, graft fusion, and internal fixation for patients with non-contiguous multifocal spinal tuberculosis was feasible  ...  Distribution of multifocal of spinal TB (n029) 2 foci 24 3 foci 5 Number of normal intervertebral disc between affected bodies 1 3 2 or 2+ 26 Frankl grade (n029) B 2 C 4 D 5 E  ... 
doi:10.1007/s00264-011-1478-1 pmid:22237921 pmcid:PMC3385909 fatcat:inoojijsx5fb3onevoacnknjeu

Square-Cut: A Segmentation Algorithm on the Basis of a Rectangle Shape

Jan Egger, Tina Kapur, Thomas Dukatz, Malgorzata Kolodziej, Dženan Zukić, Bernd Freisleben, Christopher Nimsky, Yong Fan
2012 PLoS ONE  
For evaluation, we focus on vertebrae images from Magnetic Resonance Imaging (MRI) datasets to support the time consuming manual slice-by-slice segmentation performed by physicians.  ...  We present a rectangle-based segmentation algorithm that sets up a graph and performs a graph cut to separate an object from the background.  ...  Furthermore, the authors would like to thank Fraunhofer MeVis in Bremen, Germany, for their collaboration and especially Horst K. Hahn for his support. Author Contributions  ... 
doi:10.1371/journal.pone.0031064 pmid:22363547 pmcid:PMC3283589 fatcat:h3gcngbrtjhghhwyb5ir7qbbuq

Role of Additional Coronal Magnetic Resonance Imaging in Decompression and Reconstruction with or without Segment Salvage in Thoracic Spine Tuberculosis

Sudhir Srivastava, Nandan Marathe, Sunil Bhosale, Prajakta Bhide, Shaligram Purohit, Chetan Shende, Balgovind Raja
2019 Asian Spine Journal  
Hence, additional cone down coronal cuts must be required when MRI is suggestive for spinal TB because it will help in the decision making.  ...  This method of deciding the level of fixation and segment salvage based on coronal MRI in addition to the sagittal and axial images provided good result in 64 of 65 patients, except for one patient in  ...  Hence, additional cone down coronal cuts must be required when MRI is suggestive for spinal TB because it will help in the decision making.  ... 
doi:10.31616/asj.2019.0007 pmid:31352723 pmcid:PMC6894969 fatcat:b3to5l2lzraopdhpqwmvka5pvm

Enhanced N-Cut and Watershed based Model for Brain MRI Segmentation

2020 International Journal of Engineering and Advanced Technology  
In the next stage these primitive regions resembled for graph depiction and then the normalized cut method is used for segmenting an image.  ...  Hybrid approach which uses enhanced normalized cut and watershed transform to segment brain MRI images is developed in this paper.  ...  We have proposed a novel hybrid approach based on enhanced normalize cut and watershed transform for segmentation of brain MRI.  ... 
doi:10.35940/ijeat.e9535.069520 fatcat:ejovljsva5cgxdyre6o2afefmm

Focal Spinal Nondisjunction in Primary Neurulation : Limited Dorsal Myeloschisis and Congenital Spinal Dermal Sinus Tract

Sui-To Wong, Dachling Pang
2021 Journal of Korean Neurosurgical Society  
Spinal dysraphic lesions due to focal nondisjunction in primary neurulation are commonly encountered in paediatric neurosurgery, but the "fog-of-war" on these conditions was only gradually dispersed in  ...  It is now clear that limited dorsal myeloschisis and congenital spinal dermal sinus tract are conditions at the two ends of a spectrum; and mixed lesions of them with various configurations exist.  ...  INTRODUCTION Focal nondisjunction of the primary neural tube in its spinal cord region results in a normal or near-normal spinal cord, except for the presence of a tract anchoring the dorsal surface of  ... 
doi:10.3340/jkns.2020.0117 pmid:33715322 pmcid:PMC7969048 fatcat:i6iozbfjufbajeubctcpemlism

Long segment composite split cord malformation with double bony spur

Anand Sharma, Achal Sharma, R.S. Mittal
2015 Romanian Neurosurgery  
In this report, we presented an unusual case of long segment composite type split cord malformation with double level bony spur with multiple associated bony anomalies.  ...  The frequency of composite- type SCM is lower than 1% in the literature.  ...  D, E -MRI T2 axial images at D6 (A) and L2 (E) level  ... 
doi:10.1515/romneu-2015-0047 fatcat:dilufc76i5alng5kpptbowu7lq

How I Do It: Management of spina bifida in a hospital in The People′s Republic of China

Nan Bao, Jorge Lazareff
2015 Surgical neurology international  
We acknowledge that the diameter of the spinal canal is a problem for large remnant lesions.  ...  In cases of myelomeningocele, we prefer to place the shunt and close the defect in the same procedure, it reduces the risks inherent to exposure to anesthesia, reduces hospital stay, and related costs.  ...  a b c d Figure 18: (a) MRI evidencing cord herniated in omega shape, (b) the bulging dura sac has been opened, (c) the spinal cord is separated from the sac, (d) the freed cord is about to be placed in  ... 
doi:10.4103/2152-7806.161410 pmid:26236554 pmcid:PMC4521313 fatcat:gg45tg2vhjgvhdulnxzyik4obq

MRI-SegFlow: a novel unsupervised deep learning pipeline enabling accurate vertebral segmentation of MRI images

Xihe Kuang, Jason PY Cheung, Honghan Wu, Socrates Dokos, Teng Zhang
2020 2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)  
We integrate the sub-optimal segmentation results produced by a rule-based method with a unique voting mechanism to provide supervision in the training process for the deep learning model.  ...  Most deep learning based vertebral segmentation methods require laborious manual labelling tasks. We aim to establish an unsupervised deep learning pipeline for vertebral segmentation of MR images.  ...  ACKNOWLEDGMENT We would like to thank the Hong Kong Theme-Based Research Scheme (T12-708/12N) for supporting the establishment of the MRI dataset.  ... 
doi:10.1109/embc44109.2020.9175987 pmid:33018308 fatcat:alucygxlkbakxew52d2vthuqdm
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