We propose a novel approach for potential online treatment verification using cine EPID (electronic portal imaging device) images for hypofractionated lung radiotherapy based on a machine learning algorithm. Hypofractionated radiotherapy requires high precision. It is essential to effectively monitor the target to ensure that the tumor is within the beam aperture. We modeled the treatment verif...

Proton therapy is very sensitive to uncertainties introduced during treatment planning and dose delivery. PET imaging of proton induced positron emitter distributions is the only practical approach for in vivo, in situ verification of proton therapy. This article reviews the current status of proton therapy verification with PET imaging. The different data detecting systems (in-beam, in-room an...

MOTIVATION In this study, a method is reported to perform IMRT and VMAT treatment delivery verification using 3D volumetric primary beam fluences reconstructed directly from planned beam parameters and treatment delivery records. The goals of this paper are to demonstrate that 1) 3D beam fluences can be reconstructed efficiently, 2) quality assurance (QA) based on the reconstructed 3D fluences ...

Health assessment tools (treatment standardization guidelines, risk evaluation scales, disease burden estimations, and patient‘s perceptions questionnaires, among others) are very similar in format to a software specification, although targeted to humans. As in any document written in natural language, such medical approaches are prone to errors and misunderstandings caused by ambiguities, omis...

One of the applications of MatriXX (IBA Dosimetry) is experimental verification of dose for IMRT, VMAT, and tomotherapy. For cumulative plan verification, dose is delivered for all the treatment gantry angles to a stationary detector. Experimental calibration of MatriXX detector recommended by the manufacturer involves only AP calibration fields and does not address angular dependency of MatriX...

introduction: gafchromic ebt films are one of the self-developing and modern films commercially available for dosimetric verification of treatment planning systems (tpss). their high spatial resolution, low energy dependence and near-tissue equivalence make them suitable for verification of dose distributions in radiation therapy. this study was designed to evaluate the dosimetric parameters of...

Abstract Records and reports are the sources of data for health programme planning, monitoring evaluation. Accurate timely crucial to ensure quality leprosy services, including drug supply, complication management disability prevention. Data verification validation initial steps achieve global goal zero leprosy. The objectives were strengthen reporting system, update personal records provide on...

Volumetric imaging and planning for 3-D conformal RT and IMRT have pressured the oncology community to better understand the geometric uncertainties inherent in the RT delivery process, including set-up error (inter-fraction) as well as organ motion during treatment (intra-fraction). This has ushered in the development of emerging technologies and clinical processes collectively referred to as ...

AIMS To estimate the prevalence and predictors of failed biochemical verification of self-reported abstinence among participants enrolled in trials of hospital-initiated smoking cessation interventions. DESIGN Comparison of characteristics between participants who verified and those who failed to verify self-reported abstinence. SETTINGS Multi-site randomized clinical trials conducted betwe...