SRS MapCHECK takes the place of film and expedites the workflow for time-sensitive patient QA. It's a consistent, easy-to-maintain method for high-density absolute dose measurements. Irradiate from Any Angle With the StereoPHAN, SRS MapCHECK uses apatentedtechnique to account and correct for an...
方法:StereoPHAN模体和SNC Patient软件配合SRS Mapcheck探测器进行QA测量,使用Trilogy型医用直线加速器的6 MV光子束对矩阵作阵列和绝对剂量校准,测试多叶准直器(MLC)单野、调强放射治疗(IMRT)及容积弧形调强放射治疗(VMAT)临QA计划在3 mm/3%、2 mm/2%及1 mm/1%标准下的二维γ通过率。结果:在绝对剂量分析模式3 ...
Objective To study the dosimetric characteristics of SRS MapCHECK detector array and to explore its application in dose verification of stereotactic radiotherapy plans. Methods Varian VitalBeam linear accelerator was used to measure the repeatability, dose linearity, dose rate li...
为了保证患者计划的正确实施,治疗前都会进行患者的剂量验证,本次采用StereoPHAN点剂量验证、SRSMapcheck面剂量、Portal Dosimetry面剂量验证和独立核查软件Mobius3D四种验证方法。其中采用StereoPHAN模体、搭配CC01电离室,测量结果为-0.75%;用SRSMapchec验证结...
SRS MapCHECK在SBRT质控中的应用研究 近年来,随着放射治疗技术的发展,立体定向放射治疗(SBRT)因其定位精度高,治疗分次少,副作用较小,受到越来越多的关注,广泛应用于早期肺癌,肝癌和脑转移瘤等常见恶性肿瘤... 影像医学与核医学 被引量: 0发表: 2021年 Technical note: Optimizing the deliverability of binary col...
EDOSEγ通过率剂量验证目的:使用SRS MapCHECK和EDOSE对立体定向放疗(SRT)计划进行剂量验证,并比较它们的验证结果.方法:首先比较两种系统在不同方野(2 cm×2 cm,4 cm×4 cm,6 cm×6 cm,10 cm×10 cm)的γ通过率(3%/3 mm),然后选择29例SRT计划,分析两种系统在不同γ标准下的绝对剂量通过率,最后分析EDOSE...
PO-1385: CyberKnife patient plan verification with the SRS MapCHECKTM - First clinical experiencedoi:10.1016/S0167-8140(21)01403-1S. PetersO. BislichA.A. SchnfeldF. FehlauerRadiotherapy and Oncology
SRS MapCHECK patients specific QA results showed improvement in gamma passing rates for a workflow where Catalyst reported errors above 0.5 mm were corrected.doi:10.1007/s13246-023-01238-3Tonkin, KatherineGenesisCareGoodall, Simon K.Univ Western AustraliaSpringer International PublishingPhysical and ...
End-to-end image-guided validation was performed using a StereoPHAN housing, an SRS MapCHECK and EBT3 film, and calculation time was investigated as a function of statistical uncertainty and field diameter. The TPS calculations agreed with measured data within their estimated uncertainties and ...
To maintain good agreement between SRS MapCHECK and film or TPS, authors recommend avoiding plans with a modified modulation complexity score (MMCS) <0.1 arbitrary units (a.u.). In the examples presented, this coincides with avoiding plans with a mu/dose limit of >3?μ/cGy. Conclusions ...