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首页> 外文期刊>Radiology >Mapping of the cortical motor hand area with functional MR imaging and MR imaging-guided laser-induced interstitial thermotherapy of brain tumors. Work in progress.
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Mapping of the cortical motor hand area with functional MR imaging and MR imaging-guided laser-induced interstitial thermotherapy of brain tumors. Work in progress.

机译：功能性MR成像和MR成像引导的激光诱导的脑肿瘤间质热疗对皮质运动手区域的映射。工作正在进行中。

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摘要

PURPOSE: To localize the cortical motor hand area with functional magnetic resonance (MR) imaging before and after MR imaging--guided laser-induced interstitial thermotherapy of tumors in the precentral brain region to control energy delivery and to improve safety. MATERIALS AND METHODS: Functional MR images were obtained in eight patients (five men, three women; aged 27-63 years) while they flexed their fingers. MR imaging--guided laser-induced interstitial thermotherapy was terminated when there was less than 8-12 mm between the border of the laser-induced lesion and the motor hand area anterior aspect. RESULTS: Seven patients had a statistically significant localized change in signal intensity in the central region of the contralateral hemisphere. This area was a spotlike circumscribed focus in three patients and scattered over a larger zone in four patients. Persistent deficits did not occur after thermotherapy in any patient. In three patients, onset of reversible perifocal edema in the motor handarea coincided with the development of hemiparesis, which completely resolved. No patient had activity within the tumor on functional MR images. CONCLUSION: Functional MR imaging findings can be used to prevent neurologic damage during MR imaging--guided laser-induced interstitial thermotherapy.
机译：目的：MR成像之前和之后，通过功能性磁共振（MR）成像来定位皮质运动肌的手区域-引导激光诱导的大脑中前区肿瘤间质热疗，以控制能量输送并提高安全性。材料与方法：在八名患者屈伸手指的过程中获得了功能性MR图像（五名男性，三名女性;年龄27-63岁）。当在激光诱发病变的边界和运动手区域前部之间的距离小于8-12 mm时，以MR成像为指导的激光诱发间质热疗法终止。结果：7例患者在对侧半球中心区域的信号强度发生了统计学上显着的局部变化。该区域是三例患者的点状外接边界，并散布在四例患者的较大区域。在任何患者中，热疗后均未出现持续性赤字。在三例患者中，运动性手部区域可逆性周围性水肿的发作与偏瘫的发生同时发生，并完全消退。在功能性MR图像上，没有患者在肿瘤内活动。结论：功能性MR成像的发现可用于预防MR成像引导的激光诱导间质热疗过程中的神经系统损害。

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