keyword
MENU ▼
Read by QxMD icon Read
search

mri spinal cord

keyword
https://www.readbyqxmd.com/read/28547862/mri-evaluation-of-regional-and-longitudinal-changes-in-z-spectra-of-injured-spinal-cord-of-monkeys
#1
Feng Wang, Zhongliang Zu, Ruiqi Wu, Tung-Lin Wu, John C Gore, Li Min Chen
PURPOSE: In principle, MR methods that exploit magnetization transfer (MT) may be used to quantify changes in the molecular composition of tissues after injury. The ability to track such changes in injured spinal cord may allow more precise assessment of the state of neural tissues. METHODS: Z-Spectra were obtained from the cervical spinal cord before and after a unilateral dorsal column lesion in monkeys at 9.4T. The amplitudes of chemical exchange saturation transfer (CEST) and nuclear Overhauser enhancement (NOE) effects from multiple proton pools, along with nonspecific semisolid MT effects from immobile macromolecules, were quantified using a five-peak Lorenzian fitting of each Z-spectrum...
May 25, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28547859/giant-cell-tumor-of-the-mobile-spine-occurring-in-pregnancy-a-case-report-and-literature-review
#2
Kai Zheng, Ming Xu, Bing Wang, Xiu-Chun Yu, Yong-Cheng Hu
Giant cell tumor (GCT) is a benign, locally aggressive tumor that rarely occurs in the spine. They usually occur in patients between 20 and 40 years of age; some patients with GCT present in hospital with pregnancy. The management of these patients can be challenging. The current study reports a case of GCT located in the sixth thoracic vertebra of a 31-year-old female at 34 weeks of gestation. An osteolytic lesion, 3.5 cm × 3.5 cm in diameter, was identified on CT. An MRI test of the lesion revealed a soft tissue mass involving the T 6-7 vertebrae, extending to the right pedicle of the T 6 vertebra and causing significant spinal cord compression...
May 26, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28541431/emerging-safety-of-intramedullary-transplantation-of-human-neural-stem-cells-in-chronic-cervical-and-thoracic-spinal-cord-injury
#3
Allan D Levi, David O Okonkwo, Paul Park, Arthur L Jenkins, Shekar N Kurpad, Ann M Parr, Aruna Ganju, Bizhan Aarabi, Dong Kim, Steven Casha, Michael G Fehlings, James S Harrop, Kim D Anderson, Allyson Gage, Jane Hsieh, Stephen Huhn, Armin Curt, Raphael Guzman
BACKGROUND: Human central nervous system stem cells (HuCNS-SC) are multipotent adult stem cells with successful engraftment, migration, and region-appropriate differentiation after spinal cord injury (SCI). OBJECTIVE: To present data on the surgical safety profile and feasibility of multiple intramedullary perilesional injections of HuCNS-SC after SCI. METHODS: Intramedullary free-hand (manual) transplantation of HuCNS-SC cells was performed in subjects with thoracic (n = 12) and cervical (n = 17) complete and sensory incomplete chronic traumatic SCI...
May 24, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28540253/craniocervical-junction-abnormalities-with-atlantoaxial-subluxation-caused-by-ventral-subluxation-of-c2-in-a-dog
#4
Harumichi Itoh, Kazuhito Itamoto, Shotaro Eto, Tomoya Haraguchi, Shimpei Nishikawa, Kenji Tani, Yoshiki Itoh, Masato Hiyama, Toshie Iseri, Munekazu Nakaichi, Yasuho Taura
Craniocervical junction abnormalities with atlantoaxial subluxation caused by ventral subluxation of C2 were diagnosed in a 6-month-old female Pomeranian with tetraplegia as a clinical sign. Lateral survey radiography of the neck with flexion revealed atlantoaxial subluxation with ventral subluxation of C2. Computed tomography revealed absence of dens and atlanto-occipital overlapping. Magnetic resonance imaging showed compression of the spinal cord and indentation of caudal cerebellum. The diagnosis was Chiari-like malformation, atlantoaxial subluxation with ventral displacement of C2, atlanto-occipital overlapping, and syringomyelia...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28540122/presurgical-role-of-mri-tractography-in-a-case-of-extensive-cervicothoracic-spinal-ependymoma
#5
Francesca Granata, Sergio Racchiusa, Enricomaria Mormina, Valeria Barresi, Giada Garufi, Giovanni Grasso, Francesco Maria Salpietro, Marcello Longo, Concetta Alafaci
BACKGROUND: Intramedullary spinal ependymoma is a tumor, hardly characterizable with conventional magnetic resonance (MR) imaging only. MR diffusion tensor imaging (DTI) with three-dimensional fiber-tracking reconstructions allows the evaluation of the relationship between neoplasm and white matter fiber tracts, being a powerful tool in presurgical planning. We present DTI findings in a case of a young female with an extensive cervicothoracic spinal ependymoma. CASE DESCRIPTION: The patient complained of a 2-month history of acute urinary retention, weakness and numbness on the lower limbs and the upper left limb...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28536800/causes-and-preventive-measures-of-symptomatic-spinal-epidural-haematoma-after-spinal-surgery
#6
Xiao-Jun Zeng, Wei Wang, Zhou Zhao, Ming Li
STUDY DESIGN: This was a retrospective study to evaluate clinical characteristics of patients who developed symptomatic spinal epidural haematoma (SSEH) after spinal surgery. OBJECTIVE: The objective was to determine clinical parameters associated with the development of SSEH after spinal surgery, and to discuss clinical management and possible preventive measures. Although the incidence rate of SSEH is low, the neurological sequelae are devastating. There are limited reports which identify risk factors for SSEH because of the rarity of the condition...
May 24, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28535554/anesthetic-considerations-and-perioperative-management-of-spinal-cord-stimulators-literature-review-and-initial-recommendations
#7
Michael E Harned, Brandon Gish, Allison Zuelzer, Jay S Grider
BACKGROUND: Patients with implanted spinal cord stimulators (SCS) present to the anesthesia care team for management at many different points along the care continuum. Currently, the literature is sparse on the perioperative management. What is available is confusing; monopolar electrocautery is contraindicated but often used, full body magnetic resonance imaging (MRI) is safe with particular systems but with other manufactures only head and specific extremities exams are safe. Moreover, there are anesthetizing locations outside of the operating room where implanted SCS can interact with surrounding medical equipment and pose significant risk to patient and device...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28534040/elsberg-syndrome-a-rarely-recognized-cause-of-cauda-equina-syndrome-and-lower-thoracic-myelitis
#8
Filippo Savoldi, Timothy J Kaufmann, Eoin P Flanagan, Michel Toledano, Brian G Weinshenker
OBJECTIVE: Elsberg syndrome (ES) is an established but often unrecognized cause of acute lumbosacral radiculitis with myelitis related to recent herpes virus infection. We defined ES, determined its frequency in patients with cauda equina syndrome (CES) with myelitis, and evaluated its clinical, radiologic, and microbiologic features and outcomes. METHODS: We searched the Mayo Clinic medical records for ES and subsequently for combinations of index terms to identify patients with suspected CES and myelitis...
July 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28533943/etiology-and-treatment-of-amyotrophic-lateral-sclerosis
#9
Hernando Rafael, Juan Oscar David, Antonio Santiago Vilca
BACKGROUND: To date all researchers conclude that the etiology of Amyotrophic lateral sclerosis (ALS) is not known. On the contrary, since August 2009, we believe that disease is of ischemic origin in the anterior surface of the medulla oblongata. MATERIAL AND METHOD: We present our surgical experience into 45 patients with ALS (bulbar form in 36 cases and spinal form in 9). Preoperative MRI scans revealed microinfarcts in the medulla oblongata and/or cervical cord...
2017: American Journal of Neurodegenerative Disease
https://www.readbyqxmd.com/read/28533868/-rare-medico-surgical-emergency-spinal-epidural-abscess-about-3-cases
#10
Abderrazzak El Saqui, Mohamed Aggouri, Mohamed Benzagmout, Khalid Chakour, Mohamed El Faiz Chaoui
The awareness about infections in the epidural space is increasing thanks to the development of neurosurgery, including MRI. Spinal epidural abscess is a rare pathology but extremely serious from a functional point of view and potentially life threatening. We report three cases of male patients (the first one aged 52 years, the second 57 years and the third 63 years) with diagnosed spinal epidural abscess. Two patients were admitted to the Neurosurgical Emergencies with slow progressive spinal cord compression evolving in the context of infection...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28533855/-a-rare-cause-of-spinal-cord-compression-spinal-epidural-arachnoid-cyst-about-3-cases
#11
Abderrazzak El Saqui, Mohamed Aggouri, Mohamed Benzagmout, Khalid Chakour, Mohamed El Faiz Chaoui
Spinal epidural arachnoid cyst (SEAC) is a benign condition whose pathophysiology is still uncertain. It is most commonly asymptomatic but it can cause severe neurological sequelae especially when treatment is not received in time. We conducted a retrospective study of three patients treated for SEAC conducted in the Neurosurgery Department, Hassan II University Hospital, Fez. We report the case of two male patients and a woman, with an average age of 35 years (range: 16-56 years), admitted with slow progressive spinal cord compression...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28533365/prediction-of-disease-activity-in-models-of-multiple-sclerosis-by-molecular-magnetic-resonance-imaging-of-p-selectin
#12
Antoine Philippe Fournier, Aurélien Quenault, Sara Martinez de Lizarrondo, Maxime Gauberti, Gilles Defer, Denis Vivien, Fabian Docagne, Richard Macrez
New strategies for detecting disease activity in multiple sclerosis are being investigated to ameliorate diagnosis and follow-up of patients. Today, although magnetic resonance imaging (MRI) is widely used to diagnose and monitor multiple sclerosis, no imaging tools exist to predict the evolution of disease and the efficacy of therapeutic strategies. Here, we show that molecular MRI targeting the endothelial adhesion molecule P-selectin unmasks the pathological events that take place in the spinal cord of mice subjected to chronic or relapsing experimental autoimmune encephalomyelitis...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28532916/spinal-intramedullary-tuberculosis-with-concurrent-supra-and-infratentorial-intracranial-disease-in-a-9-month-old-boy-case-report-and-review-of-the-literature
#13
REVIEW
Michael George Zaki Ghali, Visish M Srinivasan, C J Kim, Archana Malik
Tuberculous involvement of the spinal cord parenchyma is an exceedingly rare clinical entity; even more so is concurrent intracranial tuberculosis (TB). Spinal intramedullary TB presents with a characteristic subacute myelopathy, with slowly progressive paraplegia, sensory deficits, and/or bowel and bladder dysfunction. Diagnosis is strongly suspected with a clinical history of known TB in conjunction with characteristic findings on magnetic resonance imaging. Management involves multi-agent antitubercular chemotherapy without or with operative intervention...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28529681/imaging-spectrum-of-spinal-dysraphism-on-magnetic-resonance-a-pictorial-review
#14
REVIEW
Jyoti Kumar, Muhammed Afsal, Anju Garg
Congenital malformations of spine and spinal cord are collectively termed as spinal dysraphism. It includes a heterogeneous group of anomalies which result from faulty closure of midline structures during development. Magnetic resonance imaging (MRI) is now considered the imaging modality of choice for diagnosing these conditions. The purpose of this article is to review the normal development of spinal cord and spine and reviewing the MRI features of spinal dysraphism. Although imaging of spinal dysraphism is complicated, a systematic approach and correlation between neuro-radiological, clinical and developmental data helps in making the correct diagnosis...
April 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28526323/-18-f-fdg-pet-ct-helps-in-unmasking-the-great-mimicker-a-case-of-neurosarcoidosis-with-isolated-involvement-of-the-spinal-cord
#15
A Gholamrezanezhad, L Mehta
A 36 year-old male with no significant past medical history presented with lower extremity numbness, gait instability, and urinary and bowel retention of 4 weeks onset. Spine MRI revealed diffuse oedema of cervicothoracic spinal cord with several solid enhancing intramedullary lesions, suggestive of metastases. The (18)F-FDG PET/CT performed to identify the primary malignancy demonstrated mild hypermetabolic foci within the cervicothoracic cord, as well as a mildly hypermetabolic bilateral hilar lymphadenopathy and a mildly hypermetabolic pulmonary nodule, suggestive of sarcoidosis versus metastasis...
May 16, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28525486/regression-of-anterior-disk-osteophyte-complex-following-cervical-laminectomy-and-fusion-for-cervical-spondylotic-myelopathy
#16
Adedayo O Ashana, Jeremiah R Cohen, Brandon Evans, Langston T Holly
STUDY DESIGN: A retrospective case-control study. OBJECTIVE: To investigate whether posterior cervical laminectomy and fusion modifies the natural course of anterior disk-osteophyte complex in patients with multilevel cervical spondylotic myelopathy. SUMMARY OF BACKGROUND DATA: Dorsal migration of the spinal cord is the main purported mechanism of spinal cord decompression following cervical laminectomy and fusion but other potential mechanisms have received scant attention in the literature...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28524790/cognard-type-v-intracranial-dural-arteriovenous-fistula-presenting-in-a-pediatric-patient-with-rapid-progressive-myelopathy
#17
Walter J Jermakowicz, Alexander G Weil, Artyom Vlasenko, Sanjiv Bhatia, Toba N Niazi
Cognard Type V dural arteriovenous fistulas (dAVFs) are a unique type of cranial vascular malformation characterized by congestion of the perimedullary venous system that may lead to devastating spinal cord pathology if left untreated. The authors present the first known case of a pediatric patient diagnosed with a Type V dAVF. A 14-year-old girl presented with a 3-week history of slowly progressive unilateral leg weakness that quickly progressed to bilateral leg paralysis, sphincter dysfunction, and complete sensory loss the day of her presentation...
May 19, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28514903/utility-of-the-central-motor-conduction-time-recorded-from-the-abductor-pollicis-brevis-and-the-abductor-digiti-minimi-muscles-in-patients-with-c6-7-myelopathy
#18
Yasuaki Imajo, Tsukasa Kanchiku, Hidenori Suzuki, Masahiro Funaba, Norihiro Nishida, Toshihiko Taguchi
OBJECTIVE: Central motor conduction time (CMCT) recorded from the abductor pollicis brevis (CMCT-APB) and abductor digiti minimi (CMCT-ADM) muscles may enable the evaluation of patients with C6-7 myelopathy. CMCT is more useful for the evaluation of the function of spinal cord than magnetic resonance imaging (MRI) findings. CMCT may be associated with age and height. However, there are few reports regarding CMCT-APB in normal subjects. This study aimed to investigate the relationships between age, height, and conduction parameters in normal subjects to assess the effectiveness of using CMCT-APB and CMCT-ADM for the evaluation of patients with C6-7 and C7-T1 myelopathy...
May 17, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28512616/surgical-management-of-syringomyelia-associated-with-spinal-adhesive-arachnoiditis-a-late-complication-of-tuberculous-meningitis-a-case-report
#19
Jun Seok Lee, Geun Sung Song, Dong Wuk Son
Syringomyelia associated with tuberculous meningitis is an extremely rare condition. Only a few studies have reported clinical experience with syringomyelia as a late complication of tuberculous meningitis. Twenty-six years after a tuberculous meningitis episode, a 44-year-old man presented with progressively worsening spastic paresis of the lower limbs and impaired urinary function for 2 years. Radiological examination revealed syringomyelia extending from the level of C2 to T9 and arachnoiditis with atrophy of the spinal cord between C2 and T3...
April 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/28508100/cervical-radiculopathy-combined-with-cervical-myelopathy-prevalence-and-characteristics
#20
Byung-Wan Choi, Sung-Soo Kim, Dong-Hyun Lee, Ji-Wan Kim
Patients with cervical myelopathy may experience symptoms of radiculopathy, and it is not easy to determine whether these symptoms are caused by the myelopathy itself or by a radiculopathy accompanied by root compression. Therefore, we aimed to investigate the prevalence of radiculopathy combined with cervical myelopathy and to evaluate the characteristics of cervical myelopathy with or without radiculopathy. We enrolled 127 patients with cervical myelopathy in this retrospective study and reviewed their medical records and magnetic resonance imaging findings...
May 15, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
keyword
keyword
72156
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"