Diffusion tensor tractography of pyramidal tracts in patients with brainstem and intramedullary spinal cord tumors: Relationship with motor deficits and intraoperative MEP changes

2017 ◽  
Vol 46 (3) ◽  
pp. 715-723 ◽  
Author(s):  
Tomasz Czernicki ◽  
Edyta Maj ◽  
Anna Podgórska ◽  
Przemysław Kunert ◽  
Marek Prokopienko ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
Motor Deficits ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord ◽  
Pyramidal Tracts

scholarly journals Diffusion tensor imaging to guide surgical planning in intramedullary spinal cord tumors in children

2014 ◽  
Vol 56 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Asim F. Choudhri ◽  
Matthew T. Whitehead ◽  
Paul Klimo ◽  
Blake K. Montgomery ◽  
Frederick A. Boop
Keyword(s):  
Spinal Cord ◽  
Diffusion Tensor Imaging ◽  
Surgical Planning ◽  
Diffusion Tensor ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord

scholarly journals Resection of Intramedullary Spinal Cord Tumor under Awake Anesthesia: A Novel Approach to Minimize Postoperative Motor Deficits

2017 ◽  
Vol 3 (1) ◽  
pp. 28-34
Author(s):  
Ahsan Ali Khan ◽  
Lukui Chen ◽  
Xiaoyuan Guo ◽  
Hong Wang ◽  
Guojian Wu ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Evoked Potential ◽  
Spinal Cord Tumor ◽  
Tumor Resection ◽  
Motor Deficits ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord ◽  
Intramedullary Spinal Cord Tumor ◽  
Advantages And Disadvantages ◽  
Sensory Evoked

Objective To observe advantages and disadvantages of the resection of intramedullary spinal cord tumor under awake anesthesia. Methods Two patients with intramedullary spinal cord tumor underwent resection under awake anesthesia and followed up post-operatibely for any motor deficits. Results Patients who underwent tumor resection under awake (AAA) anesthesia combined with intraoperative NPM had no motor deficits postoperatively. More accurate and nondelayed responses were observed in the awake cycle of anesthesia and helped guide surgery, thus avoiding injuries to the spinal cord. Conclusion Intramedullary spinal cord tumors are not common, but only gross total resection (GTR) can provide complete remission of symptoms and progression-free survival. However, GTR sometimes results in motor function deficits postoperatively, particularly when the cervical cord is involved, and especially if surgery is done under general anesthesia with intraoperative neurophysiological monitoring (NPM) alone, because of delayed sensory evoked potential and motor evoked potential responses. We present two cases that underwent GTR of cervical intramedullary spinal cord tumors under an asleep-awake-asleep (AAA) cycle of anesthesia, combined with intraoperative NPM in which no postoperative motor deficits were observed on 6-months follow up.

Diffusion tensor imaging tractography in patients with intramedullary tumors: comparison with intraoperative findings and value for prediction of tumor resectability

2010 ◽  
Vol 13 (3) ◽  
pp. 371-380 ◽  
Author(s):  
Matthias Setzer ◽  
Ryan D. Murtagh ◽  
F. Reed Murtagh ◽  
Mohammed Eleraky ◽  
Surbhi Jain ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Diffusion Tensor Imaging ◽  
Interrater Reliability ◽  
Diffusion Tensor ◽  
Cleavage Plane ◽  
Lesion Volume ◽  
Spinal Cord Tumors ◽  
Intramedullary Tumors ◽  
Intramedullary Spinal Cord

Object The aim of this retrospective study was to evaluate the predictive value of diffusion tensor (DT) imaging with respect to resectability of intramedullary spinal cord tumors and to determine the concordance of this method with intraoperative surgical findings. Methods Diffusion tensor imaging was performed in 14 patients with intramedullary lesions of the spinal cord at different levels using a 3-T magnet. Routine MR imaging scans were also obtained, including unenhanced and enhanced T1-weighted images and T2-weighted images. Patients were classified according to the fiber course with respect to the lesion and their lesions were rated as resectable or nonresectable. These results were compared with the surgical findings (existence vs absence of cleavage plane). The interrater reliability was calculated using the κ coefficient of Cohen. Results Of the 14 patients (7 male, 7 female; mean age 49.2 ± 15.5 years), 13 had tumors (8 ependymomas, 2 lymphomas, and 3 astrocytoma). One lesion was proven to be a multiple sclerosis plaque during further diagnostic workup. The lesions could be classified into 3 types according to the fiber course. In Type 1 (5 cases) fibers did not pass through the solid lesion. In Type 2 (3 cases) some fibers crossed the lesion, but most of the lesion volume did not contain fibers. In Type 3 (6 cases) the fibers were completely encased by tumor. Based on these results, 6 tumors were considered resectable, 7 were not. During surgery, 7 tumors showed a good cleavage plane, 6 did not. The interrater reliability (Cohen κ) was calculated as 0.83 (p < 0.003), which is considered to represent substantial agreement. The mean duration of follow-up was 12.0 ± 2.9. The median McCormick grade at the end of follow-up was II. Conclusions These preliminary data suggest that DT imaging in patients with spinal cord tumors is capable of predicting the resectability of the lesion. A further prospective study is needed to confirm these results and any effect on patient outcome.

scholarly journals Microsurgical Removal of Intramedullary Spinal Cord Tumors

1986 ◽  
Vol 26 (4) ◽  
pp. 311-317 ◽  
Author(s):  
Toshihiro YASUI ◽  
Akira HAKUBA ◽  
Junsuke KATSUYAMA ◽  
Shuro NISHIMURA
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord

scholarly journals Feasibility of a novel diagnostic chart of intramedullary spinal cord tumors in magnetic resonance imaging

Spinal Cord ◽  
2014 ◽  
Vol 52 (10) ◽  
pp. 769-773 ◽  
Author(s):  
H Arima ◽  
T Hasegawa ◽  
D Togawa ◽  
Y Yamato ◽  
S Kobayashi ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord

The Role of Motor Evoked Potentials during Surgery for Intramedullary Spinal Cord Tumors

Neurosurgery ◽  
1997 ◽  
Vol 41 (6) ◽  
pp. 1327-1336 ◽  
Author(s):  
Nobu Morota ◽  
Vedran Deletis ◽  
Shlomi Constantini ◽  
Markus Kofler ◽  
Henry Cohen ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord

Diagnostic Utility of Intraoperative Neurophysiological Monitoring for Intramedullary Spinal Cord Tumors

2018 ◽  
Vol 31 (3) ◽  
pp. 112-119 ◽  
Author(s):  
Tej D. Azad ◽  
Arjun V. Pendharkar ◽  
Viet Nguyen ◽  
James Pan ◽  
Ian D. Connolly ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Intraoperative Neurophysiological Monitoring ◽  
Neurophysiological Monitoring ◽  
Diagnostic Utility ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord
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