두개저 수막종 환자에 대한 저분할 방사선 수술의 임상적 효용성

• 영문명: Clinical efficacy of hypofractionated shaped-beam stereotactic radiosurgery in patients with skull base meningioma: Single center experience
• 발행기관: 대한두개저학회
• 저자명: 박경규(Gyeong-Gyu Park) 오혁진(Hyuk-Jin Oh) 안재민(Jae-Min Ahn) 오재상(Jae-Sang Oh) 민철기(Chul-Kee Min)
• 간행물 정보: 『대한두개저학회지』제17권 제1호, 5~10쪽, 전체 6쪽
• 주제분류: 의약학 > 일반외과학
• 파일형태: PDF
• 발행일자: 2022.03.31

영문 초록

Background : Various modalities of stereotactic radiosurgery (SRS) have been proven to be effective and safe in the treatment of intracranial meningiomas. Depending on the characteristics of each modality, various results can be obtained. To analyze the therapeutic effect of hypofractionated SRS (hSRS) on skull base meningioma, we retrospectively reviewed the results of clinical and follow-up image studies. Materials and Methods : Between January 2011 and December 2020, thirty-two patients (median age, 58 years; 5 males and 27 females) had been treated with hSRS using the Novalis Tx system for skull base meningiomas (mean volume, 7.86 cm3). Tumor was located in most frequently cavernous sinus (n = 7, 21.9%), cerebellopontine angle (n = 7, 21.9%), clinoidal (n = 6, 18.8%) locations. Thirteen patients had previously undergone surgical treatment including radiosurgery. The median cumulative dose was 25 Gy (range, 21.0-27.5 Gy) in five fractions (range, 3-5 fractions). Results : During a median follow-up of 50 months (range, 13-98 months) hSRS achieves 100% tumor control rate in all patients without tumor progression. As a result of volumetric analysis using magnetic resonance imaging showed partial response (volume decrease > 20%) in 26 patients (81.3%), stable in 4 patients (12.5%). The tumor volume decreased by an average of 55.5% when compared with the beginning. Conclusions : This study showed that hSRS is an effective and safe treatment modality with a high tumor control rate and functional outcomes for skull base meningioma.

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키워드

Meningioma Radiosurgery Skull base neoplasms