Results 1 to 10 of about 12,318 (173)

Development of Dosimetric Verification System for Patient-Specific Quality Assurance of High-Dose-Rate Brachytherapy [PDF]

Frontiers in Oncology, 2021
Purpose: The aim of this study was to develop a dosimetric verification system (DVS) using a solid phantom for patient-specific quality assurance (QA) of high-dose-rate brachytherapy (HDR-BT).Methods: The proposed DVS consists of three parts: dose ...
Sang-Won Kang, Sang-Won Kang, Jin-Beom Chung, Kyeong-Hyeon Kim, Kyeong-Hyeon Kim, Chang Heon Choi, Seonghee Kang, Dong-Seok Shin, Dong-Seok Shin, Woong Cho, Kuen-Yong Eom, Hae-Jin Park, Jin-Young Kim, Changhoon Song, In Ah Kim, Jae-Sung Kim, Tae Suk Suh, Tae Suk Suh, Justin C. Park   +18 more
doaj   +2 more sources

Dosimetric verification of clinical radiotherapy treatment planning system [PDF]

Vojnosanitetski Pregled, 2022
Background/Aim. In the past two decades, we have witnessed the emergence of new radiation therapy techniques, radiotherapy treatment planning system (TPS) with calculating algorithms for the dosage calculation in a patient, units for multislice computed ...
Kolarević Goran, Jaroš Dražan, Marošević Goran, Ignjatić Dejan, Mirjanić Dragoljub   +4 more
doaj   +3 more sources

Dosimetric Verification of Intensity Modulated Radiotherapy (IMRT) Treatment Plans for Prostate Cancer Patients [PDF]

Acta Clinica Croatica, 2022
Intensity modulated radiotherapy (IMRT) has become widely used as a standard radiation therapy technique for the treatment of localized prostate cancer.
Iva Mrčela, Marin Gregov, Ante Matanić, Mirjana Budanec, Jure Murgić, Blanka Jakšić, Marin Prpić, Angela Prgomet Sečan, Ana Fröbe   +8 more
doaj   +2 more sources

Design, fabrication, and validation of a polymethyl methacrylate head phantom for dosimetric verification of cranial radiotherapy treatment plans

Journal of Medical Physics, 2020
Purpose: The present study aims to design and fabricate a novel, versatile, and cost-effective Polymethyl Methacrylate (PMMA) head phantom for the dosimetric pretreatment verification of radiotherapy (RT) treatment plans.
V S Shaiju, Rajesh Kumar, Debjani Phani, K V Rajasekhar, George Zacharia, Saju Bhasi, Raghuram K Nair   +6 more
doaj   +2 more sources

Study of the prediction of gamma passing rate in dosimetric verification of intensity-modulated radiotherapy using machine learning models based on plan complexity [PDF]

Frontiers in Oncology, 2023
ObjectiveTo predict the gamma passing rate (GPR) in dosimetric verification of intensity-modulated radiotherapy (IMRT) using three machine learning models based on plan complexity and find the best prediction model by comparing and evaluating the ...
Shizhen Bin, Ji Zhang, Luyao Shen, Junjun Zhang, Qi Wang   +4 more
doaj   +2 more sources

Dosimetric verification of IMPT using a commercial heterogeneous phantom. [PDF]

J Appl Clin Med Phys, 2019
AbstractThe purpose of this study was to propose a verification method and results of intensity‐modulated proton therapy (IMPT), using a commercially available heterogeneous phantom. We used a simple simulated head and neck and prostate phantom. An ionization chamber and radiochromic film were used for measurements of absolute dose and relative dose ...
Yasui K, Toshito T, Omachi C, Hayashi K, Kinou H, Katsurada M, Hayashi N, Ogino H.   +7 more
europepmc   +4 more sources

Clinical validation of using a commercial synthetic-computed tomography solution for brain MRI-only radiotherapy treatment planning [PDF]

Technical Innovations & Patient Support in Radiation Oncology
Background and purpose: MRI-only radiotherapy treatment planning (RTP) relies on synthetic-CT (sCT) images for dose calculation. This study evaluates the clinical feasibility of using a commercial sCT solution in brain RTP, MRCAT Brain, focusing on ...
Lamyaa Aljaafari, Richard Speight, David L. Buckley, David Bird, Bashar Al-Qaisieh   +4 more
doaj   +2 more sources

A homogeneous water-equivalent anthropomorphic phantom for dosimetric verification of radiotherapy plans

Journal of Medical Physics, 2018
Water is treated as radiological equivalent to human tissue. While this seems justified, there is neither mathematical proof nor sufficient experimental evidence that a water phantom can be treated as equivalent to human tissue.
Manikandan Arjunan, Sureka Chandra Sekaran, Biplab Sarkar, Sujatha Manikandan   +3 more
doaj   +2 more sources

Dosimetric verification of radiotherapy treatment planning systems in Serbia: national audit [PDF]

Radiation Oncology, 2012
Background Independent external audits play an important role in quality assurance programme in radiation oncology. The audit supported by the IAEA in Serbia was designed to review the whole chain of activities in 3D conformal radiotherapy (3D-CRT ...
Rutonjski Laza, Petrović Borislava, Baucal Milutin, Teodorović Milan, Čudić Ozren, Gershkevitsh Eduard, Izewska Joanna   +6 more
doaj   +3 more sources

Evaluating intra‐fraction motion and its dosimetric impact in ethos online adaptive radiotherapy for prostate cancer [PDF]

Precision Radiation Oncology
Purpose This study evaluated the geometric and dosimetric uncertainties during online adaptive radiotherapy (ART) for prostate cancer. Methods Sequential cone beam computed tomography (CBCT) scans from 52 sessions involving 13 patients were analyzed.
Yoganathan SA, Ahamed Basith, Rajeev Choudary Apsani, Venkada Manickam Gurusamy, Amine Khemissi, Satheesh Paloor, Saju Divakar, Sarah McCabe, Rabih Hammoud, Noora Al‐Hammadi   +9 more
doaj   +2 more sources