公开(公告)号：US06626569B2

公开(公告)日：2003-09-30

申请号：US09870094

申请日：2001-05-30

申请人： Lawrence E. Reinstein ,  Keith Welsh

发明人： Lawrence E. Reinstein ,  Keith Welsh

IPC分类号： G01D1800

CPC分类号： A61N5/1048 ,  A61B6/584 ,  A61N5/1075 ,  A61N2005/1076

摘要： An image-based quality assurance (IBQA) system is provided for performing quality assurance testing of a medical linear accelerator photon beam. The IBQA system includes an imaging phantom integrated with an automated image analysis system. The imaging phantom comprises a set of fixed and rotatable reference objects which, when radiographed, set the orientation of the phantom, determine magnification factors and measure spatial distortions. The imaging phantom includes a chamber for inserting a radiographic film to record an image of the photon beam. The sampled image is digitized and made available to the automated image analysis system for measuring quality assurance parameters from the sampled image. The measured beam quality parameters are compared with baseline parameter values to determine whether they fall within prescribed specifications. The analysis system includes an integrated database which stores the measured parameters to: establish baseline and tolerance tables for all measured image quality assurance parameters for each accelerator modality and energy; record and retrieve beam quality parameter results for trend analysis and data mining for most AAPM TG-40 beam parameters; select specific protocols for defining the image quality assurance parameters; and generate customized reports responsive to government mandated regulations.

公开(公告)号：US20080269568A1

公开(公告)日：2008-10-30

申请号：US11739873

申请日：2007-04-25

申请人： David F. Lewis ,  Lawrence E. Reinstein

发明人： David F. Lewis ,  Lawrence E. Reinstein

IPC分类号： A61B5/00

CPC分类号： A61N5/1048 ,  A61N2005/1074

摘要： Described are various methods for validating a patient's radiotherapy plan. One possible method comprises receiving a dose distribution at a dosimetry service, receiving dose data at the dosimetry service from a radiation detection device at a treatment site removed from the dosimetry service, the data having been gathered in accordance with the dose distribution, and evaluating the dose data in comparison to the dose distribution to prepare a validation report.

摘要翻译： 描述了用于验证患者放射治疗计划的各种方法。 一种可能的方法包括在剂量测定服务处接收剂量分布，在剂量测定服务处从在剂量测定服务中移除的治疗部位的放射线检测装置接收剂量数据，根据剂量分布收集数据，并评估 剂量数据与剂量分布进行比较，以准备验证报告。

公开(公告)号：US06614036B1

公开(公告)日：2003-09-02

申请号：US09715517

申请日：2000-11-17

申请人： Lawrence E. Reinstein

发明人： Lawrence E. Reinstein

IPC分类号： A61N500

CPC分类号： H05H7/00 ,  A61N5/1049 ,  A61N2005/105

摘要： A quality assurance device is provided for ensuring the accuracy and reproducibility of the mechanical parameters of medical linear accelerators (Medical LINACs). The quality assurance devices is configured for placement within two parallel slots on the gantry of a Medical LINAC and includes off-the-shelf components for ensuring the accuracy and reproducibility of an optical distance indicator (ODI) distance measurement readout, collimator and gantry angles indicated by a display of the Medical LINAC, a radiation field size indicated by the Medical LINAC display, the centering of cross-hairs on the gantry with the intersection of the Medical LINAC axes, and alignment of the two lasers emanating from two positions toward the Medical LINAC with the intersection of the Medical LINAC axes.

摘要翻译： 提供了一种质量保证装置，用于确保医疗线性加速器（医疗LINAC）的机械参数的准确性和可重复性。 质量保证装置被配置为放置在医疗LINAC的台架上的两个并行槽内，并且包括用于确保光学距离指示器（ODI）距离测量读数，准直器和所述台架角度的准确度和再现性的现成部件 通过医疗LINAC的显示，医疗LINAC显示器所指示的辐射场尺寸，在医疗LINAC轴的交叉处的龙门架上的十字线的对中以及从两个位置发射到医疗的两个激光器的对准 LINAC与医用LINAC轴相连。