A comparison of the gamma knife model C and the Automatic Positioning System with Leksell model B.
A comparison of the gamma knife model C and the Automatic Positioning System with Leksell model B.
复制标题
伽玛刀 C 型和自动定位系统与 Leksell B 型的比较。
DOI：
10.3171/jns.2005.102.s_supplement.0025
复制
发表时间：
2005
影响因子：
4.1
通讯作者：
R. Liščák
中科院分区：
文献类型：
--
作者：
D. Tlachacova;M. Schmitt;J. Novotný;J. Novotný;M. Majali;R. Liščák
对象
作者试图比较Leksell伽玛刀B型与C型自动定位系统（APS）的治疗计划质量、辐射防护和治疗时间。
方法
在463例接受B模型治疗的患者和518例接受C模型治疗的患者中获得数据。分析了以下诊断的患者的数据：前庭神经鞘瘤、垂体腺瘤、脑膜瘤、孤立性转移瘤和其他良性和恶性孤立性肿瘤。本研究排除了动静脉畸形、眼部病变和功能诊断的患者。
结论
对于大多数治疗靶点，如前庭神经鞘瘤（p = 0.005）和脑膜瘤（p = 0.015），C模型具有更好的符合性。当使用模型C时，人员的辐射暴露水平显著降低（p < 0.001）。两种模型治疗的患者中，相同照射次数的颅外结构辐射暴露无显著差异。每次治疗使用C型和APS节省的平均时间为41分钟。看起来C型伽玛刀允许更好的剂量一致性、更短的治疗时间和更少的人员辐射暴露。
OBJECT
The authors sought to compare the quality of treatment planning, radiation protection, and the time taken for treatment in the Leksell gamma knife model B with that using the model C Automatic Positioning System (APS).
METHODS
Data were obtained in 463 patients treated with the B model and 518 patients treated with the C model. Data were analyzed in patients in whom the following diagnoses had been made: vestibular schwannoma, pituitary adenoma, meningioma, solitary metastasis, and other benign and malignant solitary tumors. Patients with arteriovenous malformations, ocular lesions, and functional diagnoses were excluded from this study.
CONCLUSIONS
With the C model there was a better conformity for most treated targets, such as vestibular schwannomas (p = 0.005) and meningiomas (p = 0.015). The level of radiation exposures to personnel was significantly decreased when using the model C (p < 0.001). There was no significant difference in radiation exposure of extracranial structures for the same number of shots in patients treated by both models. The mean time saved using the C model with the APS was 41 minutes per treatment. It would seem that the gamma knife model C permits better dose conformity, shorter treatment times, and less radiation exposure to personnel.