Volumetric assessment of glioma removal by intraoperative high-field magnetic resonance imaging

被引:133
作者
Nimsky, C
Fujita, A
Ganslandt, O
von Keller, B
Fahlbusch, R
机构
[1] Univ Erlangen Nurnberg, Dept Neurosurg, D-91054 Erlangen, Germany
[2] Kobe Univ, Dept Neurosurg, Grad Sch Med, Kobe, Hyogo, Japan
关键词
functional neuronavigation; glioma surgery; intraoperative high-field magnetic resonance imaging; resection control;
D O I
10.1227/01.NEU.0000129694.64671.91
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
OBJECTIVE: To investigate the contribution of high-field intraoperative magnetic resonance imaging (iMRI) for further reduction of tumor volume in glioma surgery. METHODS: From April 2002 to June 2003, 182 neurosurgical procedures were performed with a 1.5-T magnetic resonance system. Among patients who underwent these procedures, 47 patients with gliomas (14 with World Health Organization Grade I or 11 glioma, and 33 with World Health Organization Grade III or IV glioma) who underwent craniotomy were investigated retrospectively. Completeness of tumor resection and volumetric analysis were assessed with intraoperative imaging data. RESULTS: Surgical procedures were influenced by iMRI in 36.2% of operations, and surgery was continued to remove residual tumor. Additional further resection significantly reduced the percentage of final tumor volume compared with first iMRI scan (6.9% +/- 10.3% versus 21.4% +/- 13.8%; P < 0.001). Percentages of final tumor volume also were significantly reduced in both low-grade (10.3% +/- 11.5% versus 25.8% +/- 16.3%; P < 0.05) and high-grade gliomas (5.4% +/- 9.9% versus 19.5% +/- 13.0%; P < 0.001). Complete resection was achieved finally in 36.2% of all patients (low-grade, 57.1 %; high-grade, 27.3%). Among the 17 patients in whom complete tumor resection was achieved, 7 complete resections (41.2%) were attributable to further tumor removal after iMRI. We did not encounter unexpected events attributable to high-field iMRI, and standard neurosurgical equipment could be used safely. CONCLUSION: Despite extended resections, introduction of high-field iMRI in conjunction with functional navigation did not translate into an increased risk of postoperative deficits. The use of high-field iMRI increased radicality in glioma surgery without additional morbidity.
引用
收藏
页码:358 / 370
页数:13
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