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  • Title: Intraoperative high-field magnetic resonance imaging combined with functional neuronavigation in resection of low-grade temporal lobe tumors.
    Author: Bai SC, Xu BN, Wei SH, Geng JF, Wu DD, Yu XG, Chen XL.
    Journal: World J Surg Oncol; 2015 Sep 26; 13():286. PubMed ID: 26410079.
    Abstract:
    BACKGROUND: The aim of this study is to investigate the role of intraoperative MR imaging in temporal lobe low-grade glioma (LGG) surgery and to report the surgical outcome in our series with regard to seizures, neurological defects, and quality of life. METHODS: Patients with temporal lobe contrast-nonenhancing gliomas who presented with seizures in the course of their disease were enrolled in our prospective study. We non-randomly assigned patients to undergo intraoperative magnetic resonance imaging (iMRI)-guided surgery or conventional surgery. Extent of resection (EOR) and surgical outcomes were compared between the two groups. RESULTS: Forty-one patients were allocated in the iMRI group, and 14 were in the conventional group. Comparable EOR was achieved for the two groups (p = 0.634) although preoperative tumor volumes were significantly larger for the iMRI group. Seizure outcome tended to be better for the iMRI group (Engel class I achieved for 89.7% (35/39) vs 75% (9/12)) although this difference was not statistically different. Newly developed neurological deficits were observed in four patients (10.3%) and two patients (16.7%), respectively (p = 0.928). Free of seizures and neurological morbidity led to a return-to-work or return-to-school rate of 84.6% (33/39) vs 75% (9/12), respectively (p = 0.741). CONCLUSIONS: Our study provided evidence that iMRI was a safe and useful tool in temporal lobe LGG surgery. Optimal extent of resection contributed to favorable seizure outcome in our series with low morbidity rate, which led to a high return-to-work rate.
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