Search Results - "George Xu, X"

An exponential growth of computational phantom research in radiation protection, imaging, and radiotherapy: a review of the fifty-year history by Xu, X George

“…Radiation dose calculation using models of the human anatomy has been a subject of great interest to radiation protection, medical imaging, and radiotherapy…”
Get more information

AAPM TG 158: Measurement and calculation of doses outside the treated volume from external‐beam radiation therapy by Kry, Stephen F., Bednarz, Bryan, Howell, Rebecca M., Dauer, Larry, Followill, David, Klein, Eric, Paganetti, Harald, Wang, Brian, Wuu, Cheng‐Shie, George Xu, X.

“…The introduction of advanced techniques and technology in radiotherapy has greatly improved our ability to deliver highly conformal tumor doses while…”
Get full text

Image guidance doses delivered during radiotherapy: Quantification, management, and reduction: Report of the AAPM Therapy Physics Committee Task Group 180 by Ding, George X., Alaei, Parham, Curran, Bruce, Flynn, Ryan, Gossman, Michael, Mackie, T. Rock, Miften, Moyed, Morin, Richard, Xu, X. George, Zhu, Timothy C.

“…Background With radiotherapy having entered the era of image guidance, or image‐guided radiation therapy (IGRT), imaging procedures are routinely performed for…”
Get full text

MC1R Is a Potent Regulator of PTEN after UV Exposure in Melanocytes by Cao, Juxiang, Wan, Lixin, Hacker, Elke, Dai, Xiangpeng, Lenna, Stefania, Jimenez-Cervantes, Celia, Wang, Yongjun, Leslie, Nick R., Xu, George X., Widlund, Hans R., Ryu, Byungwoo, Alani, Rhoda M., Dutton-Regester, Ken, Goding, Colin R., Hayward, Nicholas K., Wei, Wenyi, Cui, Rutao

“…The individuals carrying melanocortin-1 receptor (MC1R) variants, especially those associated with red hair color, fair skin, and poor tanning ability (RHC…”
Get full text

A method of rapid quantification of patient‐specific organ doses for CT using deep‐learning‐based multi‐organ segmentation and GPU‐accelerated Monte Carlo dose computing by Peng, Zhao, Fang, Xi, Yan, Pingkun, Shan, Hongming, Liu, Tianyu, Pei, Xi, Wang, Ge, Liu, Bob, Kalra, Mannudeep K., Xu, X. George

“…Purpose One technical barrier to patient‐specific computed tomography (CT) dosimetry has been the lack of computational tools for the automatic…”
Get full text

VirtualDose: a software for reporting organ doses from CT for adult and pediatric patients by Ding, Aiping, Gao, Yiming, Liu, Haikuan, Caracappa, Peter F, Long, Daniel J, Bolch, Wesley E, Liu, Bob, Xu, X George

“…This paper describes the development and testing of VirtualDose--a software for reporting organ doses for adult and pediatric patients who undergo x-ray…”
Get more information

Direct and fast measurement of CT beam filter profiles with simultaneous geometrical calibration by Yang, Kai, Li, Xinhua, George Xu, X., Liu, Bob

“…Purpose To accurately measure the beam filter profiles from a variety of CT scanner models and to provide reference data for Monte Carlo simulations of CT…”
Get full text

Dose assessment for the fetus considering scattered and secondary radiation from photon and proton therapy when treating a brain tumor of the mother by Geng, Changran, Moteabbed, Maryam, Seco, Joao, Gao, Yiming, Xu, X George, Ramos-Méndez, José, Faddegon, Bruce, Paganetti, Harald

“…The goal of this work was to determine the scattered photon dose and secondary neutron dose and resulting risk for the sensitive fetus from photon and proton…”
Get more information

Innovations in Computer Technologies Have Impacted Radiation Dosimetry Through Anatomically Realistic Phantoms and Fast Monte Carlo Simulations by George Xu, X

“…ABSTRACTRadiological physics principles have not changed in the past 60 y when computer technologies advanced exponentially. The research field of anatomical…”
Get full text

Evaluation of deep learning‐based auto‐segmentation algorithms for delineating clinical target volume and organs at risk involving data for 125 cervical cancer patients by Wang, Zhi, Chang, Yankui, Peng, Zhao, Lv, Yin, Shi, Weijiong, Wang, Fan, Pei, Xi, Xu, X. George

“…Objective To evaluate the accuracy of a deep learning‐based auto‐segmentation mode to that of manual contouring by one medical resident, where both entities…”
Get full text

A method of using deep learning to predict three‐dimensional dose distributions for intensity‐modulated radiotherapy of rectal cancer by Zhou, Jieping, Peng, Zhao, Song, Yuchen, Chang, Yankui, Pei, Xi, Sheng, Liusi, Xu, X. George

“…Purpose To develop and test a three‐dimensional (3D) deep learning model for predicting 3D voxel‐wise dose distributions for intensity‐modulated radiotherapy…”
Get full text

CONCEPTUAL DESIGN AND PRELIMINARY RESULTS OF A VR-BASED RADIATION SAFETY TRAINING SYSTEM FOR INTERVENTIONAL RADIOLOGISTS by Guo, Yi, Mao, Li, Zhang, Gongsen, Chen, Zhi, Pei, Xi, Xu, X George

“…Abstract To help minimise occupational radiation exposure in interventional radiology, we conceptualised a virtual reality-based radiation safety training…”
Get full text

Second malignant neoplasms and cardiovascular disease following radiotherapy by Travis, Lois B, Ng, Andrea K, Allan, James M, Pui, Ching-Hon, Kennedy, Ann R, Xu, X George, Purdy, James A, Applegate, Kimberly, Yahalom, Joachim, Constine, Louis S, Gilbert, Ethel S, Boice, Jr, John D

“…Second malignant neoplasms (SMNs) and cardiovascular disease (CVD) are among the most serious and life-threatening late adverse effects experienced by the…”
Get full text

Patient-Specific Organ and Effective Dose Estimates in Adult Oncologic CT by Gao, Yiming, Mahmood, Usman, Liu, Tianyu, Quinn, Brian, Gollub, Marc J, Xu, X George, Dauer, Lawrence T

“…Patient-specific organ and effective dose provides essential information for CT protocol optimization. However, such information is not readily available in…”
Get full text

Influences of operator head posture and protective eyewear on eye lens doses in interventional radiology: A Monte Carlo Study by Mao, Li, Liu, Tianyu, Caracappa, Peter F., Lin, Hui, Gao, Yiming, Dauer, Lawrence T., Xu, X. George

“…Purpose To quantify the effects of operator head posture and different types of protective eyewear on the eye lens dose to operators in interventional…”
Get full text

Monte Carlo modeling of a 6 and 18 MV Varian Clinac medical accelerator for in-field and out-of-field dose calculations: development and validation by Bednarz, Bryan, Xu, X George

“…There is a serious and growing concern about the increased risk of radiation-induced second cancers and late tissue injuries associated with radiation…”
Get more information

A boundary-representation method for designing whole-body radiation dosimetry models: pregnant females at the ends of three gestational periods--RPI-P3, -P6 and -P9 by Xu, X George, Taranenko, Valery, Zhang, Juying, Shi, Chengyu

“…Fetuses are extremely radiosensitive and the protection of pregnant females against ionizing radiation is of particular interest in many health and medical…”
Get more information

Extension of RPI-adult male and female computational phantoms to obese patients and a Monte Carlo study of the effect on CT imaging dose by Ding, Aiping, Mille, Matthew M, Liu, Tianyu, Caracappa, Peter F, Xu, X George

“…Although it is known that obesity has a profound effect on x-ray computed tomography (CT) image quality and patient organ dose, quantitative data describing…”
Get more information

The impact of robustness of deformable image registration on contour propagation and dose accumulation for head and neck adaptive radiotherapy by Zhang, Lian, Wang, Zhi, Shi, Chengyu, Long, Tengfei, Xu, X. George

“…Deformable image registration (DIR) is the key process for contour propagation and dose accumulation in adaptive radiation therapy (ART). However, currently,…”
Get full text

MCDNet - A Denoising Convolutional Neural Network to Accelerate Monte Carlo Radiation Transport Simulations: A Proof of Principle With Patient Dose From X-Ray CT Imaging by Peng, Zhao, Shan, Hongming, Liu, Tianyu, Pei, Xi, Wang, Ge, Xu, X. George

“…X-ray computed tomography (CT) is a popular diagnostic imaging tool that has caused public concern over potential radiation risks to the patient. Monte Carlo…”
Get full text