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The use of magnetic resonance imaging in predicting the clinical outcome of spinal arteriovenous fistula.

 Dong Ah Shin  ;  Keun Young Park  ;  Gyu Yeul Ji  ;  Seong Yi  ;  Yoon Ha  ;  Seoung Woo Park  ;  Do Heum Yoon  ;  Keung Nyun Kim 
 Yonsei Medical Journal, Vol.56(2) : 397-402, 2015 
Journal Title
 Yonsei Medical Journal 
Issue Date
PURPOSE: Magnetic resonance imaging (MRI) has been used to screen and follow-up spinal dural arteriovenous fistulae (SDAVF). The purpose of this study was to evaluate the association between MRI findings and neurologic function in SDAVF. This study also investigated clinical features and treatment results of SDAVF. MATERIALS AND METHODS: A total of 15 consecutive patients who underwent embolization or surgery for SDAVF were included. We treated seven (60%) patients with embolization and six (40%) with surgery. We analysed clinical features, MRI findings, treatment results, and neurologic function. Neurologic function was measured by the Aminoff-Logue disability scale (ALS). RESULTS: Patients with longer levels of intramedullary high signal intensity in preoperative T2-weighted images (T2WI) exhibited worse pre- and postoperative ALS scores (r=0.557, p=0.031; r=0.530, p=0.042, Pearson correlation). Preoperative ALS score was significantly correlated with postoperative ALS score (r=0.908, p=0.000, Pearson correlation). The number of levels showing intramedullary high signal intensity in T2WI decreased significantly postoperatively (5.2±3.1 vs. 1.0±1.4, p=0.001, Wilcoxon ranked test). CONCLUSION: The number of involved levels of high signal intensity in preoperative T2WI is useful for predicting pre- and postoperative neurologic function in SDAVF.
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1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
김긍년(Kim, Keung Nyun)
박근영(Park, Keun Young)
신동아(Shin, Dong Ah) ORCID logo https://orcid.org/0000-0002-5225-4083
윤도흠(Yoon, Do Heum) ORCID logo https://orcid.org/0000-0003-1452-5724
이성(Yi, Seong)
지규열(Ji, Gyu Yeul)
하윤(Ha, Yoon)
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