scholarly journals Spinal Cord Segmentation in Ultrasound Medical Imagery

2020 ◽  
Vol 10 (4) ◽  
pp. 1370
Author(s):  
Bilel Benjdira ◽  
Kais Ouni ◽  
Mohamad M. Al Rahhal ◽  
Abdulrahman Albakr ◽  
Amro Al-Habib ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Semantic Segmentation ◽  
Ultrasound Waves ◽  
Medical Imagery ◽  
Abnormal Pressure ◽  
Processing Step ◽  
Spatial Pyramid Pooling ◽  
Pass Through ◽  
Spinal Cord Decompression ◽  
Adequate Decompression

In this paper, we study and evaluate the task of semantic segmentation of the spinal cord in ultrasound medical imagery. This task is useful for neurosurgeons to analyze the spinal cord movement during and after the laminectomy surgical operation. Laminectomy is performed on patients that suffer from an abnormal pressure made on the spinal cord. The surgeon operates by cutting the bones of the laminae and the intervening ligaments to relieve this pressure. During the surgery, ultrasound waves can pass through the laminectomy area to give real-time exploitable images of the spinal cord. The surgeon uses them to confirm spinal cord decompression or, occasionally, to assess a tumor adjacent to the spinal cord. The Freely pulsating spinal cord is a sign of adequate decompression. To evaluate the semantic segmentation approaches chosen in this study, we constructed two datasets using images collected from 10 different patients performing the laminectomy surgery. We found that the best solution for this task is Fully Convolutional DenseNets if the spinal cord is already in the train set. If the spinal cord does not exist in the train set, U-Net is the best. We also studied the effect of integrating inside both models some deep learning components like Atrous Spatial Pyramid Pooling (ASPP) and Depthwise Separable Convolution (DSC). We added a post-processing step and detailed the configurations to set for both models.

scholarly journals Is there a right time for surgery in paraplegic patients secondary to non traumatic spinal cord compression?

2012 ◽  
Vol 10 (4) ◽  
pp. 508-511 ◽  
Author(s):  
Leonardo Giacomini ◽  
Roger Neves Mathias ◽  
Andrei Fernandes Joaquim ◽  
Mateus Dal Fabbro ◽  
Enrico Ghizoni ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Prognostic Factor ◽  
Spinal Cord Compression ◽  
Cord Compression ◽  
Lower Limbs ◽  
Motor Deficit ◽  
Indication For Surgery ◽  
Sensory Deficits ◽  
Sensory Involvement ◽  
Spinal Cord Decompression

Paraplegia is a well-defined state of complete motor deficit in lower limbs, regardless of sensory involvement. The cause of paraplegia usually guides treatment, however, some controversies remain about the time and benefits for spinal cord decompression in nontraumatic paraplegic patients, especially after 48 hours of the onset of paraplegia. The objective of this study was to evaluate the benefits of spinal cord decompression in such patients. We describe three patients with paraplegia secondary to non-traumatic spinal cord compression without sensory deficits, and who were surgically treated after more than 48 hours of the onset of symptoms. All patients, even those with paraplegia during more than 48 hours, had benefits from spinal cord decompression like recovery of gait ability. The duration of paraplegia, which influences prognosis, is not a contra-indication for surgery. The preservation of sensitivity in this group of patients should be considered as a positive prognostic factor when surgery is taken into account.

Spinal cord decompression and stabilization in malignant lesions of the spine

1997 ◽  
Vol 68 (sup275) ◽  
pp. 97-100 ◽  
Author(s):  
George Sapkas ◽  
John Kyratzoulis ◽  
Nicolas Papaioannou ◽  
George Babis ◽  
Dimitris Rologis ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Malignant Lesions ◽  
Spinal Cord Decompression

Spinal cord decompression for Gaucher??s disease

Neurosurgery ◽  
1987 ◽  
Vol 21 (2) ◽  
pp. 227???30 ◽  
Author(s):  
J Goldblatt ◽  
P Keet ◽  
D Dall
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Decompression

scholarly journals Spinal cord segmentation and classification of degenerative disease

2019 ◽  
Vol 10 (3) ◽  
pp. 2426-2432 ◽  
Author(s):  
Arjun ◽  
Kanchana V
Keyword(s):  
Image Processing ◽  
Spinal Cord ◽  
Human Life ◽  
Semantic Segmentation ◽  
Processing Technique ◽  
Degenerative Disease ◽  
Image Processing Technique ◽  
Segmentation Approach ◽  
Work First ◽  
Mri Image

spinal cord plays an important role in human life. In our work, we are using digital image processing technique, the interior part of the human body can be analyzed using MRI, CT and X-RAY etc. Medical image processing technique is extensively used in medical field. In here we are using MRI image to perform our work In our proposed work, we are finding degenerative disease from spinal cord image. In our work first, we are preprocessing the MRI image and locate the degenerative part of the spinal cord, finding the degenerative part using various segmentation approach after that classifying degenerative disease or normal spinal cord using various classification algorithm. For segmentation, we are using an efficient semantic segmentation approach

Neural Activation and Transformation in Explants of Competent Ectoderm under the Influence of Fragments of Anterior Notochord in Urodeles

Development ◽  
1954 ◽  
Vol 2 (3) ◽  
pp. 175-193
Author(s):  
P. D. Nieuwkoop ◽  
G. v. Nigtevecht
Keyword(s):  
Spinal Cord ◽  
Neural Induction ◽  
Spatial Relations ◽  
Neural Activation ◽  
Stages Of Development ◽  
Temporal And Spatial ◽  
Pass Through ◽  
Autonomous Development

Experiments in which folds of competent ectoderm were attached to neural plates of host embryos at various cranio-caudal levels (Nieuwkoop et al., 1952) suggested that two successive influences emanate from the underlying archenteron roof: a first one representing a more or less non-specific activation which leads autonomously to a differentiation in a prosencephalic direction; and a second one transforming these prosencephalic differentiation tendencies into more caudal ones leading to the formation of rhombencephalon and spinal cord. The work of Eyal-Giladi (1954) in which the temporal and spatial relations of neural induction were analysed by means of an interruption of the induction at various stages of development and at various cranio-caudal levels of the presumptive neural area showed very clearly that during gastrulation two successive waves of induction actually pass through the presumptive neuro-ectoderm in a caudo-cranial direction. The first wave, which emanates from the presumptive prechordal material, leads to an activation of the ectoderm and its autonomous development in a prosencephalic direction.

scholarly journals Severe Cervical Spinal Kyphosis: Technical Case Reports on the Way of Microsurgical Management

2020 ◽  
Vol 3 (1) ◽  
pp. 1-9
Author(s):  
Forhad H. Chowdhury ◽  
Mohammod Raziul Haque
Keyword(s):  
Spinal Cord ◽  
Cervical Spine ◽  
Neurological Deficit ◽  
Anterior Approach ◽  
Case Reports ◽  
Posterior Stabilization ◽  
Cervical Corpectomy ◽  
Transforaminal Approach ◽  
Partial Corpectomy ◽  
Spinal Cord Decompression

A young man presented with quadriparesis due to severe kyphosis of the cervical spine. In the first posterior operation, the spinal cord was decompressed by laminectomies and posterior partial corpectomy through bilateral translateral mass and transforaminal approach followed by posterior stabilization and fusion. In the second operation, the cervical spine was stabilized and fused through an anterior approach. The patient recovered completely from his neurological deficit with very minimal neck movements. We report this case to describe the bilateral translateral mass and transforaminal partial posterior cervical corpectomy for spinal cord decompression followed by posterior and anterior stabilization and fusion.

Sign in / Sign up

Export Citation Format

Share Document