scholarly journals THE MOTION RANGE OF THE CONUS MEDULLARIS MOVEMENT WITH SERIAL MAGNETIC RESONANCE IMAGING IN SUPINE AND PRONE POSITIONS: RESULTS OF FOURTY HEALTHY SUBJECTS

2019 ◽  
Vol 82 (1) ◽  
pp. 12-17
Author(s):  
Cengiz Gömleksiz ◽  
Halil Can ◽  
Umut Yaka ◽  
Burcu Göker ◽  
Aydın Aydoseli ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Healthy Subjects ◽  
Conus Medullaris ◽  
Resonance Imaging ◽  
Serial Magnetic Resonance Imaging ◽  
Motion Range

scholarly journals Magnetic resonance imaging of the pharynx in OSA patients and healthy subjects

2001 ◽  
Vol 17 (1) ◽  
pp. 79-86 ◽  
Author(s):  
M.A. Ciscar ◽  
G. Juan ◽  
V. Martinez ◽  
M. Ramon ◽  
T. Lloret ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Healthy Subjects ◽  
Resonance Imaging

Multisession CyberKnife Radiosurgery for Intramedullary Spinal Cord Arteriovenous Malformations

Neurosurgery ◽  
2006 ◽  
Vol 58 (6) ◽  
pp. 1081-1089 ◽  
Author(s):  
John Sinclair ◽  
Steven D. Chang ◽  
Iris C. Gibbs ◽  
John R. Adler
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Arteriovenous Malformations ◽  
Conus Medullaris ◽  
Spinal Angiography ◽  
Resonance Imaging ◽  
Intramedullary Spinal Cord ◽  
Cyberknife Radiosurgery

Abstract OBJECTIVE: Intramedullary spinal cord arteriovenous malformations (AVMs) have an unfavorable natural history that characteristically involves myelopathy secondary to progressive ischemia and/or recurrent hemorrhage. Although some lesions can be managed successfully with embolization and surgery, AVM size, location, and angioarchitecture precludes treatment in many circumstances. Given the poor outlook for such patients, and building on the successful experience with radiosurgical ablation of cerebral AVMs, our group at Stanford University has used CyberKnife (Accuray, Inc., Sunnyvale, CA) stereotactic radiosurgery (SRS) to treat selected spinal cord AVMs since 1997. In this article, we retrospectively analyze our preliminary experience with this technique. METHODS: Fifteen patients with intramedullary spinal cord AVMs (nine cervical, three thoracic, and three conus medullaris) were treated by image-guided SRS between 1997 and 2005. SRS was delivered in two to five sessions with an average marginal dose of 20.5 Gy. The biologically effective dose used in individual patients was escalated gradually over the course of this study. Clinical and magnetic resonance imaging follow-up were carried out annually, and spinal angiography was repeated at 3 years. RESULTS: After a mean follow-up period of 27.9 months (range, 3–59 mo), six of the seven patients who were more than 3 years from SRS had significant reductions in AVM volumes on interim magnetic resonance imaging examinations. In four of the five patients who underwent postoperative spinal angiography, persistent AVM was confirmed, albeit reduced in size. One patient demonstrated complete angiographic obliteration of a conus medullaris AVM 26 months after radiosurgery. There was no evidence of further hemorrhage after CyberKnife treatment or neurological deterioration attributable to SRS. CONCLUSION: This description of CyberKnife radiosurgical ablation demonstrates its feasibility and apparent safety for selected intramedullary spinal cord AVMs. Additional experience is necessary to ascertain the optimal radiosurgical dose and ultimate efficacy of this technique.

scholarly journals Conus Medullaris Position in an Adult Population: Analysis of Magnetic Resonance Imaging

2016 ◽  
Vol 34 (4) ◽  
pp. 1352-1356
Author(s):  
Ozlen Karabulut ◽  
Hatice Akay ◽  
Zulfu Karabulut ◽  
Hüseyin Özevren ◽  
Gunay Saka ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Population Analysis ◽  
Adult Population ◽  
Conus Medullaris ◽  
Resonance Imaging
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