Search Results - "Zheng, Yuanshui"

The risk of developing a second cancer after receiving craniospinal proton irradiation by Newhauser, Wayne D, Fontenot, Jonas D, Mahajan, Anita, Kornguth, David, Stovall, Marilyn, Zheng, Yuanshui, Taddei, Phillip J, Mirkovic, Dragan, Mohan, Radhe, Cox, James D, Woo, Shiao

“…The purpose of this work was to compare the risk of developing a second cancer after craniospinal irradiation using photon versus proton radiotherapy by means…”
Get more information

Monte Carlo simulations of neutron spectral fluence, radiation weighting factor and ambient dose equivalent for a passively scattered proton therapy unit by Zheng, Yuanshui, Fontenot, Jonas, Taddei, Phil, Mirkovic, Dragan, Newhauser, Wayne

“…Stray neutron exposures pose a potential risk for the development of secondary cancer in patients receiving proton therapy. However, the behavior of the…”
Get more information

Monte Carlo simulations for configuring and testing an analytical proton dose-calculation algorithm by Newhauser, Wayne, Fontenot, Jonas, Zheng, Yuanshui, Polf, Jerimy, Titt, Uwe, Koch, Nicholas, Zhang, Xiaodong, Mohan, Radhe

“…Contemporary treatment planning systems for proton radiotherapy typically use analytical pencil-beam algorithms - which require a comprehensive set of…”
Get more information

Measurements of lateral penumbra for uniform scanning proton beams under various beam delivery conditions and comparison to the XiO treatment planning system by Rana, Suresh, Zeidan, Omar, Ramirez, Eric, Rains, Michael, Gao, Junfang, Zheng, Yuanshui

“…Purpose : The main purposes of this study were to (1) investigate the dependency of lateral penumbra (80%–20% distance) of uniform scanning proton beams on…”
Get full text

Measurements of neutron dose equivalent for a proton therapy center using uniform scanning proton beams by Zheng, Yuanshui, Liu, Yaxi, Zeidan, Omar, Schreuder, Andries Niek, Keole, Sameer

“…Purpose: Neutron exposure is of concern in proton therapy, and varies with beam delivery technique, nozzle design, and treatment conditions. Uniform scanning…”
Get full text

Challenges and benefits of implementing DIBH for breast cancer radiotherapy: Experiences from Guangzhou Concord Cancer Center by Zheng, Yuanshui, Liu, Xiangyu, Wang, Juwu, Lin, Ruihe, Liu, Xiaoqing, Yuan, Taize, Fu, Shen, Qian, Chaonan, Li, Zuofeng

“…Radiation therapy is used for breast cancer treatments to improve local control and overall survival but may also lead to unwanted complications such as…”
Get full text

Monte Carlo investigation of collimator scatter of proton-therapy beams produced using the passive scattering method by Titt, Uwe, Zheng, Yuanshui, Vassiliev, Oleg N, Newhauser, Wayne D

“…As a proton-therapy beam passes through the field-limiting aperture, some of the protons are scattered off the edges of the collimator. The edge-scattered…”
Get more information

Commissioning of output factors for uniform scanning proton beams by Zheng, Yuanshui, Ramirez, Eric, Mascia, Anthony, Ding, Xiaoning, Okoth, Benny, Zeidan, Omar, Hsi, Wen, Harris, Ben, Schreuder, Andries N., Keole, Sameer

“…Purpose: Current commercial treatment planning systems are not able to accurately predict output factors and calculate monitor units for proton fields…”
Get full text

Monte Carlo simulations of the dosimetric impact of radiopaque fiducial markers for proton radiotherapy of the prostate by Newhauser, Wayne, Fontenot, Jonas, Koch, Nicholas, Dong, Lei, Lee, Andrew, Zheng, Yuanshui, Waters, Laurie, Mohan, Radhe

“…Many clinical studies have demonstrated that implanted radiopaque fiducial markers improve targeting accuracy in external-beam radiotherapy, but little is…”
Get more information

Monte Carlo simulations of stray neutron radiation exposures in proton therapy by Zheng, Yuanshui, Newhauser, Wayne, Fontenot, Jonas, Koch, Nicholas, Mohan, Radhe

“…Proton radiotherapy patients receive unwanted stray neutron radiation generated in the treatment apparatus. The literature on this neutron radiation is sparse…”
Get full text

Tumor Spheroids as an in vitro model for determining the therapeutic response to proton beam radiotherapy and thermally sensitive nanocarriers by Senavirathna, Lakmini K, Fernando, Ruchika, Maples, Danny, Zheng, Yuanshui, Polf, Jerimy C, Ranjan, Ashish

“…Multicellular Tumor Spheroids (MCTS) strongly resemble tumor tissues, which makes them useful tools for radiation biology studies and screening of various…”
Get full text

Reducing stray radiation dose to patients receiving passively scattered proton radiotherapy for prostate cancer by Taddei, Phillip J, Fontenot, Jonas D, Zheng, Yuanshui, Mirkovic, Dragan, Lee, Andrew K, Titt, Uwe, Newhauser, Wayne D

“…Proton beam radiotherapy exposes healthy tissue to stray radiation emanating from the treatment unit and secondary radiation produced within the patient. These…”
Get more information

Theoretical and empirical investigations of KCl:Eu{sup 2+} for nearly water-equivalent radiotherapy dosimetry by Zheng Yuanshui, Han Zhaohui, Driewer, Joseph P., Low, Daniel A., Li, H. Harold

“…Purpose: The low effective atomic number, reusability, and other computed radiography-related advantages make europium doped potassium chloride (KCl:Eu{sup…”
Get full text

Dosimetric and radiobiological impact of intensity modulated proton therapy and RapidArc planning for high‐risk prostate cancer with seminal vesicles by Rana, Suresh, Cheng, ChihYao, Zhao, Li, Park, SungYong, Larson, Gary, Vargas, Carlos, Dunn, Megan, Zheng, Yuanshui

“…Introduction The purpose of this study was to evaluate the dosimetric and radiobiological impact of intensity modulated proton therapy (IMPT) and RapidArc…”
Get full text

Evaluation and improvement of angular response for a commercial 2D detector array for patient‐specific QA by Wang, Sha, Zheng, Yuanshui

“…Purpose MatriXX ionization chamber array has been widely used for the composite dose verification of IMRT/VMAT plans. However, in addition to its dose response…”
Get full text

Comparison of Calcification Specificity in Digital Mammography Using Soft-Copy Display Versus Screen-Film Mammography by Kim, Hak Hee, Pisano, Etta D, Cole, Elodia B, Jiroutek, Michael R, Muller, Keith E, Zheng, Yuanshui, Kuzmiak, Cherie M, Koomen, Marcia A

“…The purpose of this study was to compare specificity in the interpretation of calcifications in soft-copy reviewing of digital mammograms versus hard-copy…”
Get full text

ANISOTROPIC GAMMA ANALYSIS：A NEW ANALYSIS METHOD FOR PATIENT-SPECIFIC MEASUREMENTS USING A 2D DETECTION ARRAY by Yang, Yifeng, Li, Zuofeng, Zheng, Yuanshui

Get full text

Minimizing treatment planning errors in proton therapy using failure mode and effects analysis by Zheng, Yuanshui, Johnson, Randall, Larson, Gary

“…Purpose: Failure mode and effects analysis (FMEA) is a widely used tool to evaluate safety or reliability in conventional photon radiation therapy. However,…”
Get full text

Impact of grid size on uniform scanning and IMPT plans in XiO treatment planning system for brain cancer by Rana, Suresh, Zheng, Yuanshui

“…The main purposes of this study are to: 1) evaluate the accuracy of XiO treatment planning system (TPS) for different dose calculation grid size based on head…”
Get full text

Monte Carlo study of neutron dose equivalent during passive scattering proton therapy by Zheng, Yuanshui, Newhauser, Wayne, Fontenot, Jonas, Taddei, Phil, Mohan, Radhe

“…Stray radiation exposures are of concern for patients receiving proton radiotherapy and vary strongly with several treatment factors. The purposes of this…”
Get more information