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

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.

Magnetic Resonance Imaging Diffusion Tensor Tractography: Evaluation of Anatomic Accuracy of Different Fiber Tracking Software Packages

2014 ◽  
Vol 81 (1) ◽  
pp. 144-150 ◽  
Author(s):  
Guenther C. Feigl ◽  
Wolfgang Hiergeist ◽  
Claudia Fellner ◽  
Karl-Michael M. Schebesch ◽  
Christian Doenitz ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Diffusion Tensor ◽  
Fiber Tracking ◽  
Diffusion Tensor Tractography ◽  
Resonance Imaging ◽  
Software Packages

scholarly journals Normal Values of Diffusion Tensor Magnetic Resonance Imaging Parameters in the Cervical Spinal Cord

2015 ◽  
Vol 9 (4) ◽  
pp. 541 ◽  
Author(s):  
Kazuki Chagawa ◽  
Shunka Nishijima ◽  
Tsukasa Kanchiku ◽  
Yasuaki Imajo ◽  
Hidenori Suzuki ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Normal Values ◽  
Diffusion Tensor ◽  
Cervical Spinal Cord ◽  
Resonance Imaging ◽  
Imaging Parameters

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
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