Zobrazeno 1 - 10
of 213
pro vyhledávání: '"Paul Segars"'
Autor:
Ergys Subashi, Li Feng, Yilin Liu, Scott Robertson, Paul Segars, Bastiaan Driehuys, Christopher R. Kelsey, Fang-Fang Yin, Ricardo Otazo, Jing Cai
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 25, Iss , Pp 100409- (2023)
Background and Purpose: The accuracy and precision of radiation therapy are dependent on the characterization of organ-at-risk and target motion. This work aims to demonstrate a 4D magnetic resonance imaging (MRI) method for improving spatial and tem
Externí odkaz:
https://doaj.org/article/09bc5bf9b1534f598d4085d87d78b36e
Publikováno v:
Chest. 163:1084-1100
Publikováno v:
Journal of Cardiovascular Magnetic Resonance, Vol 21, Iss 1, Pp 1-12 (2019)
Abstract Background Validating new techniques for fetal cardiovascular magnetic resonance (CMR) is challenging due to random fetal movement that precludes repeat measurements. Consequently, fetal CMR development has been largely performed using physi
Externí odkaz:
https://doaj.org/article/61952cd65f5c4080a2603258214627ce
Publikováno v:
Med Phys
PURPOSE: The gold-standard method for estimation of patient-specific organ doses in digital tomosynthesis (DT) requires protocol-specific Monte Carlo (MC) simulations of radiation transport in anatomically accurate computational phantoms. Although ac
Autor:
Fariba Azizmohammadi, Iñaki Navarro Castellanos, Joaquim Miró, Paul Segars, Ehsan Samei, Luc Duong
Publikováno v:
Med Phys
BACKGROUND: Navigation guidance in cardiac interventions is provided by X-ray angiography. Cumulative radiation exposure is a serious concern for pediatric cardiac interventions. PURPOSE: A generative learning-based approach is proposed to predict X-
Publikováno v:
Medical Physics.
Autor:
Fariba Azizmohammadi, Iñaki Navarro Castellanos, Joaquim Miró, Paul Segars, Ehsan Samei, Luc Duong
Publikováno v:
Physics in medicine and biology.
Objective. To develop a novel patient-specific cardio-respiratory motion prediction approach for X-ray angiography time series based on a simple long short-term memory (LSTM) model. Approach. The cardio-respiratory motion behavior in an X-ray image s
Publikováno v:
Med Phys
PURPOSE: Virtual (in silico) imaging trials (VITs), involving computerized phantoms and models of the imaging process, provide a modern alternative to clinical imaging trials. VITs are faster, safer, and enable otherwise-impossible investigations. Cu
Autor:
Ehsan Abadi, Cindy McCabe, Brian Harrawood, Saman Sotoudeh-Paima, W. Paul . Segars, Ehsan Samei
Publikováno v:
Proc SPIE Int Soc Opt Eng
The purpose of this study was to develop a virtual imaging framework that simulates a new photon-counting CT (PCCT) system (NAEOTOM Alpha, Siemens). The PCCT simulator was built upon the DukeSim platform, which generates projection images of computat
Autor:
Mingye Wu, Paul FitzGerald, Jiayong Zhang, W Paul Segars, Hengyong Yu, Yongshun Xu, Bruno De Man
Publikováno v:
Physics in medicine and biology. 67(19)
Objective. X-ray-based imaging modalities including mammography and computed tomography (CT) are widely used in cancer screening, diagnosis, staging, treatment planning, and therapy response monitoring. Over the past few decades, improvements to thes