What does flumazenil PET add to an evaluation for temporal lobectomy?
What does flumazenil PET add to an evaluation for temporal lobectomy?
复制标题
氟马西尼 PET 对颞叶切除术的评估有何帮助?
DOI:
10.1111/j.1535-7511.2005.00088.x
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发表时间:
2006
影响因子:
3.6
通讯作者:
Theodore,WilliamH
中科院分区:
文献类型:
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作者:
Theodore,WilliamH
Periventricular White Matter Flumazenil Binding and Postoperative Outcome in Hippocampal SclerosisHammers A, Koepp MJ, Brooks DJ, Duncan JSEpilepsia2005;46(6):944–948PurposeIn patients with hippocampal sclerosis (HS), anterior temporal lobe resection offers the possibility of a long-lasting suppression of seizures in two-thirds of patients. White matter (WM) [11C]flumazenil volume of distribution (FMZ-Vd) reflects the number of neuronal cell bodies in WM. Our objective was to correlate WM FMZ-Vdin patients with unilateral HS and postsurgical outcome.MethodsWe performed [11C]flumazenil positron emission tomography ([11C]FMZ-PET) in 15 patients with refractory mesial temporal lobe epilepsy (mTLE) and a quantitative MRI diagnosis of unilateral HS subsequently histologically verified in all cases. Median follow-up was 7 years (range, 6–9 years). Metabolite-corrected arterial plasma input functions and spectral analysis were used to generate parametric images of [11C]FMZ-Vd. Statistical parametric mapping (SPM99) with explicit masking was used to investigate the entire brain volume including WM.ResultsEight patients had Engel class IA outcome (completely seizure-free since surgery), and seven were not seizure-free. Comparison of seizure-free patients with those who continued to have seizures after surgery revealed areas of increased FMZ binding around the posterior horns of the ipsilateral (z = 3.7) and contralateral (z = 2.7) ventricles in those with suboptimal outcomes.ConclusionsPreoperative [11C]FMZ-PET can detect periventricular increases of WMFMZ binding, implying heterotopic neurons in WM, in patients with mTLE. The presence of such increases correlates with a poorer outcome.
DOI:
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发表时间:
2005
期刊:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子:
--
作者:
Giovacchini,Giampiero;Toczek,MariaT;Bonwetsch,Robert;Bagic,Anto;Lang,Lixin;Fraser,Charles;Reeves-Tyer,Pat;Herscovitch,Peter;Eckelman,WilliamC;Carson,RichardE;Theodore,WilliamH
通讯作者:
Theodore,WilliamH