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- W2901789112 abstract "Abstract BACKGROUND Preoperative interpretation of resectability of diffuse nonenhancing glioma is primarily based on individual surgical expertise. OBJECTIVE To compare the accuracy and precision between observed resections and preoperative estimates of neurosurgeons and a resection probability map (RPM). We hypothesize that the RPM estimates is as good as senior neurosurgeons. METHODS A total of 234 consecutive patients were included from 2 centers, who had resective surgery with functional mapping between 2006 and 2012 for a supra-tentorial nonenhancing glioma. Extent of resection (EOR) and residual tumor volume (RTV) were segmented and an RPM was constructed in standard brain space. Three junior and three senior neurosurgeons estimated EOR and RTV, blinded for postoperative results. We determined the agreement between the estimates and calculated the diagnostic accuracy of the neurosurgeons and the RPM to predict the observed resections. RESULTS Preoperative estimates of resection results by junior and senior neurosurgeons were significantly biased towards overestimation of EOR (4.2% and 11.2%) and underestimation of RTV (4.3 and 9.0 mL), whereas estimates of the RPM were unbiased (−2.6% and −.2 mL, respectively). The limits of agreement were wide for neurosurgeons and for the RPM. The RPM was significantly more accurate in identifying patients in whom an EOR >40% was observed than neurosurgeons. CONCLUSION Neurosurgeons estimate preoperative resectability before surgery of a nonenhancing glioma rather accurate–with a small bias–and imprecise–with wide limits of agreement. An RPM provides unbiased resectability estimates, which can be useful for surgical decision-making, planning, and education." @default.
- W2901789112 created "2018-11-29" @default.
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- W2901789112 date "2018-11-10" @default.
- W2901789112 modified "2023-10-13" @default.
- W2901789112 title "Preoperative Resectability Estimates of Nonenhancing Glioma by Neurosurgeons and a Resection Probability Map" @default.
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- W2901789112 doi "https://doi.org/10.1093/neuros/nyy487" @default.
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