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摘要目的本文旨在利用MRI 3D定量评估方法对前庭神经鞘瘤病人经分次立体定向放疗(FSRT)和单次立体定向放射手术(SRS)治疗后的临床结局进行评价。方法本回顾性分析共纳入162例经放射治疗的前庭神经鞘瘤(VS)病人。基于半自动技术,测量T1增强MRI(以治疗后每2年为间隔:0~2、2~4、4~6、6~8、8~10及10~12年)肿瘤的总体积(TTV)及肿瘤强化区体积(ETV)。如病人需要后续显微手术切除或
Abstract Objectives The purpose of this study was to evaluate the clinical outcome of patients with vestibular schwannoma treated with graded stereotactic radiotherapy (FSRT) and single-stereotactic radiosurgery (SRS) using MRI 3D quantitative assessment. Methods The retrospective analysis included a total of 162 radiotherapy-treated vestibular schwannoma (VS) patients. Based on the semi-automatic technique, the total volume (TTV) of T1-enhanced MRI (at every 2 year interval after treatment: 0-2, 2-4, 4-6, 4-6, 8-10, and 10-12) And tumor enhancement area volume (ETV). If the patient needs follow-up microsurgical resection or