Quality control of intensity-modulated plans (volumetric modulated arc therapy - vmat) in radiation therapy on the vitalbeam linear accelerator

نویسندگان

چکیده

The importance of medical physics methods in modern radiation therapy is shown. types irradiation used are considered. At each stage, it necessary to maintain high accuracy all procedures. One the significant stages treatment planning, where quality control plan carried out ensure patient. process plans with intensity modulation (Volumetric Modulated Arc Therapy - VMAT) on VitalBeam linear accelerator presented. widely method portal detector (Electronic Portal Imaging Device, EPID) Comparison dose distribution that overlapping contours. Isodose lines and a dose-volume histogram for presented main dimensional geometries clinical practice dosimetric examination described. Intensity modulated gamma analysis (VMAT) criteria defined. As well as coverage physical volume exposure. Quality distributions was assessed.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Intensity modulated radiation therapy versus volumetric intensity modulated arc therapy

The advanced developments in external beam radiation therapy (EBRT) over the past few decades have improved dose conformity to the target while minimizing dose to the surrounding organs at risk (OAR). Intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) are two commonly used EBRT techniques to treat cancer. In sliding window (SW) or dynamic IMRT, each radiati...

متن کامل

Volumetric modulated arc therapy ( VMAT )

New calorimeters Simon Duane, NPL Calorimetry remains the most fundamental method for the measurement of absorbed dose and is the basis of almost all absorbed dose primary standards worldwide. Absorbed dose to water is realised either directly, by using water as the absorbing medium, or indirectly, by using another medium (usually graphite) and determining a factor to convert dose from that med...

متن کامل

Dosimetric Evaluation of Volumetric Modulated Arc Therapy (VMAT) and Intensity Modulated Radiotherapy (IMRT) Using AAPM TG 119 Protocol

Background: The commissioning accuracy of Volumetric Modulated Arc Therapy (VMAT) need to be evaluated.Objective: To test and evaluate commissioning accuracy of VMAT based on the TG 119 protocols at local institution. Material and Methods: The phantom, structure sets, VMAT and IMRT beam parameter setup, dose prescriptions and planning objectives were following TG 119 guidelines to c...

متن کامل

Commissioning of volumetric modulated arc therapy (VMAT).

PURPOSE Volumetric modulated arc therapy (VMAT) involves the simultaneous use of dynamic multileaf collimator (DMLC) techniques and gantry arcing; appropriate quality assurance is therefore required. This article describes the development and implementation of procedures for commissioning VMAT on a commercial linear accelerator (Elekta PreciseBeam VMAT with MLCi and Beam Modulator heads). MAT...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: ?.?. ??????? ???????? ??????? ?????? ??????????????? ?????????

سال: 2022

ISSN: ['2617-9962', '2616-6771']

DOI: https://doi.org/10.32523/2616-6836-2022-141-4-41-47