scholarly journals Agreement and differentiation of intradural spinal cord lesions in dogs using magnetic resonance imaging

2021 ◽  
Author(s):  
Maya S. Krasnow ◽  
John F. Griffin ◽  
Jonathan M. Levine ◽  
Wilfried Mai ◽  
Theresa E. Pancotto ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Spinal Cord Lesions

Spinal Cord Biopsy: A Review of 38 Cases

Neurosurgery ◽  
2003 ◽  
Vol 52 (4) ◽  
pp. 806-816 ◽  
Author(s):  
Aaron A. Cohen-Gadol ◽  
Ofer M. Zikel ◽  
Gary M. Miller ◽  
Allen J. Aksamit ◽  
Bernd W. Scheithauer ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Preoperative Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Imaging Studies ◽  
Benign Lesions ◽  
Spinal Cord Lesions ◽  
Clinicopathological Findings ◽  
Preoperative Magnetic Resonance

Abstract OBJECTIVE Neurosurgeons are frequently asked to evaluate patients for spinal cord biopsies when preoperative magnetic resonance imaging studies demonstrate nonspecific features. These lesions often appear unresectable, but surgeons must decide whether a biopsy is warranted. To determine the best approach to these cases, we evaluated the clinicopathological findings for patients with unknown spinal cord lesions who underwent spinal cord biopsies. METHODS Thirty-eight consecutive patients who underwent spinal cord biopsies at the Mayo Clinic (Rochester, MN) between August 1988 and July 1998 were studied. A detailed review of the case histories, radiological results, surgical notes, histological findings, and outcomes was performed. RESULTS Spinal cord biopsies were performed for 21 male and 17 female patients (mean age, 42.1 yr) with progressive neurological deficits related to spinal cord lesions. All patients underwent preoperative magnetic resonance imaging evaluations. High T2-weighted signal intensity and spinal cord expansion were identified in 92 and 87% of cases, respectively. After gadolinium infusion, the majority (94%) of the inflammatory lesions demonstrated patchy and often peripherally situated enhancement. This neuroradiological pattern was less common for neoplasms (50%) and benign lesions (40%). The most common pathological findings were inflammatory changes of demyelination or sarcoidosis, which together accounted for 13 cases (34%). Nonspecific changes or benign lesions were observed in 10 cases (26%). Neoplasms were identified in eight cases (21%). One case of tuberculosis and one of schistosomiasis were found. Overall, 47% of the preoperative diagnoses made by the attending surgeon were correct. For 26% of the patients, specific treatment was based on the biopsy results. The average follow-up period was 12 months (standard deviation, 14 mo; range, 0–50 mo). CONCLUSION Preoperative laboratory and imaging studies are often diagnostically inconclusive in cases of spinal cord lesions with nonspecific features. Biopsies should be considered for patients with progressive symptomatic lesions.

scholarly journals Brain and Spinal Cord Lesions in Leprosy: A Magnetic Resonance Imaging–Based Study

2019 ◽  
Vol 100 (4) ◽  
pp. 921-931 ◽  
Author(s):  
Kiran Polavarapu ◽  
Veeramani Preethish-Kumar ◽  
Seena Vengalil ◽  
Saraswati Nashi ◽  
Mallika Lavania ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Spinal Cord Lesions ◽  
Brain And Spinal Cord

Magnetic Resonance Imaging of Intramedullary Spinal Cord Lesions: A Pictorial Review

2010 ◽  
Vol 39 (4) ◽  
pp. 160-185 ◽  
Author(s):  
Daniel D. Do-Dai ◽  
Michael K. Brooks ◽  
Allison Goldkamp ◽  
Sami Erbay ◽  
Rafeeque A. Bhadelia
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Spinal Cord Lesions ◽  
Intramedullary Spinal Cord ◽  
Pictorial Review

Magnetic resonance imaging of intramedullary spinal cord lesions: A pictorial review

2014 ◽  
Vol 58 (5) ◽  
pp. 569-581 ◽  
Author(s):  
Jane Watts ◽  
Georgia Alexandra Box ◽  
Angela Galvin ◽  
Frans Van Tonder ◽  
Nicholas Trost ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Spinal Cord Lesions ◽  
Intramedullary Spinal Cord ◽  
Pictorial Review

Diffusion Tensor Magnetic Resonance Imaging and Fiber Tracking in Spinal Cord Lesions: Current and Future Indications

2007 ◽  
Vol 17 (1) ◽  
pp. 137-147 ◽  
Author(s):  
Denis Ducreux ◽  
Pierre Fillard ◽  
David Facon ◽  
Augustin Ozanne ◽  
Jean-François Lepeintre ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Diffusion Tensor ◽  
Fiber Tracking ◽  
Resonance Imaging ◽  
Spinal Cord Lesions

scholarly journals The clinical and subclinical features of spinal cord injury on magnetic resonance imaging of patients with N2O intoxication

2020 ◽  
Vol 12 (2) ◽  
Author(s):  
Tran Anh Tuan ◽  
Nguyen Minh Duc ◽  
Than Van Sy ◽  
Trinh Minh Hung ◽  
Tran Cuong ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Vitamin B12 ◽  
Roc Curve ◽  
Total Duration ◽  
Serum Levels ◽  
Resonance Imaging ◽  
Spinal Cord Lesions ◽  
Cord Injury

Nitrous oxide (N2O) is a weak anesthetic gas that was first used in 1844 in the field of dental anesthesia. However, currently, N2O is being abused for entertainment purposes in the form of N2O-filled balloons, called funky balls, which can cause many adverse effects, especially nervous system injury. This study aimed to investigate the detailed clinical and subclinical features associated with N2O intoxication. We retrospectively reviewed 47 patients diagnosed with N2O intoxication, from May 2018 to July 2019, and collected demographic data, clinical and laboratory tests, and spinal cord magnetic resonance imaging (MRI) findings. The mean time of funky ball use was 8.8 months, with a mean use of 36.3 balls per day. All patients presented with superficial sensory disorders. Reductions in muscle strength, decreased vibration sensation, and decreased or lost tendon reflexes were the most common clinical signs of N2O intoxication. Romberg sign and Lhermitte sign were observed in 39 patients (83%) and 21 patients (44.7%), respectively. Spinal cord lesions on MRI were observed in 32 patients (68.1%), which mostly presented with an inverted V sign. The total duration of N2O use, the number of days of using N2O per week, and the presence of Lhermitte sign (P<0.05) were significantly different between patients with and without spinal cord lesions on MRI. Serum levels of homocysteine and vitamin B12 were significantly different between the time of admission and discharge (P<0.05). Our study indicated that the days of using N2O per week was significantly associated with Spinal Cord Injuries (SCI) on MRI. According to the Receiver Operating Characteristic (ROC) curve analysis, a cutoff days of using per week value of 2.5 days could predict SCI with a sensitivity of 81.3%, a specificity of 73.3%, and an area under the ROC curve (AUC) of 0.813. Changes in the serum levels of homocysteine and vitamin B12 were effective markers for the evaluation of treatment response.

scholarly journals HAM/TSP: association between white matter lesions on magnetic resonance imaging, clinical and cerebrospinal fluid findings

2012 ◽  
Vol 70 (4) ◽  
pp. 246-251 ◽  
Author(s):  
Marzia Puccioni-Sohler ◽  
Emerson Gasparetto ◽  
Mauro Jorge Cabral-Castro ◽  
Carla Slatter ◽  
Cecilia M. Vidal ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Cerebrospinal Fluid ◽  
White Matter ◽  
Magnetic Resonance ◽  
Cervical Spinal Cord ◽  
White Matter Lesions ◽  
Resonance Imaging ◽  
Spinal Cord Lesions ◽  
The Brain

OBJECTIVE: To investigate the association between clinical data, white matter lesions and inflammatory cerebrospinal fluid (CSF) findings in HTLV-1 associated myelopathy/tropical spastic paraparesis (HAM/TSP). METHOD: We studied brain and cervical spinal cord on magnetic resonance imaging (MRI) and CSF examinations of 28 Brazilian HAM/TSP patients. RESULTS: The majority of patients had severe neurological incapacity with EDSS median of 6.5 (3-8). The brain MRI showed white matter lesions (75%) and atrophy (14%). The preferential brain location was periventricular. Cervical demyelination lesions occurred in 11% of the cases, and cervical atrophy in 3.5%. One patient had enhancement lesions on T1 cervical spinal cord MRI. Cases with spinal cord lesions had signs of acute CSF inflammation. The brain white matter lesions predominated in the patients with higher age. CONCLUSION: Our data suggest that an active inflammatory process is associated with the cervical spinal cord lesions in HAM/TSP. The brain abnormalities are not related to the clinical picture of HAM/TSP.

scholarly journals The Role of Magnetic Resonance Imaging in Acute Transverse Myelitis

1992 ◽  
Vol 19 (4) ◽  
pp. 508-511 ◽  
Author(s):  
Sara G. Austin ◽  
Chi-Shing Zee ◽  
Cheryl Waters
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Vascular Malformation ◽  
Prognostic Value ◽  
Transverse Myelitis ◽  
Resonance Imaging ◽  
Spinal Cord Lesions ◽  
Acute Transverse Myelitis

ABSTRACT:Eighteen adult patients presenting with acute transverse myelitis (ATM) were evaluated using magnetic resonance imaging. Only 7 had abnormal scans showing an area of increased signal intensity within the cord solely on T2 weighted images; Tl weighted images were normal. The MRI abnormality did not correlate with the cause of the transverse myelitis, the extent of maximum neurological deficit, or the prognosis. A scan performed more than 5 days after the onset of disease was most likely to be positive. Even though the prognostic value of MRI in ATM may be limited, it remains a valuable technique for ruling out other causes of noncompressive spinal cord lesions, such as hemmorhage, vascular malformation, or tumor.

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