Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Z. Grelewicz"'
Autor:
Kirtesh R. Patel, Y Liao, Z Grelewicz, Damian Bernard, Mudit Chowdhary, Julius V. Turian, Jijo Paul
Publikováno v:
Practical radiation oncology. 11(4)
Purpose The purpose of this study was to investigate the contemporary distribution of medical physics (MP) employment opportunities across the United States. Methods and Materials An annual record (2018-2019) of advertised full-time MP jobs was creat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a492cec6b7efd2c4b11dc373478857ea
https://pubmed.ncbi.nlm.nih.gov/33689922
https://pubmed.ncbi.nlm.nih.gov/33689922
Publikováno v:
Medical Dosimetry. 43:30-38
The purpose of this study was to explore the feasibility of using advanced external beam radiation therapy (EBRT) planning techniques for creating plans that could be used as a possible alternative for high-dose rate (HDR) vaginal cuff brachytherapy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cef70a3944005fdcc9b70f89b28eb643
https://doi.org/10.1016/j.meddos.2017.07.013
https://doi.org/10.1016/j.meddos.2017.07.013
Publikováno v:
Medical Physics. 44:1246-1256
PURPOSE Most radiation therapy optimization problems can be formulated as an unconstrained problem and solved efficiently by quasi-Newton methods such as the Limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) algorithm. However, several next ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01a8b16f38711a925c9c7d4a33593c7c
https://doi.org/10.1002/mp.12165
https://doi.org/10.1002/mp.12165
Publikováno v:
Medical Physics. 43:2785-2793
Purpose: External tracking systems used for patient positioning and motion monitoring during radiotherapy are now capable of detecting both translations and rotations. In this work, the authors develop a novel technique to evaluate the 6 degree of fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e4a164417a22af18f8183b29148baa6
https://doi.org/10.1118/1.4948506
https://doi.org/10.1118/1.4948506
PURPOSE: The increased use of image-guided radiation therapy (IGRT) has led to increased use of kV on board imaging (OBI) devices. At present, directly measured OBI beam quality data has only been reported in terms of half value layers (HVL). However
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97bdf8a9022531e8175ecbf2d9093a8c
https://europepmc.org/articles/PMC6234071/
https://europepmc.org/articles/PMC6234071/
Publikováno v:
Medical Physics. 42:2757-2763
Purpose: To develop a control system to correct both translational and rotational head motion deviations in real-time during frameless stereotactic radiosurgery (SRS). Methods: A novel feedback control with a feed-forward algorithm was utilized to co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6257b9cf5cdbbb7bd13c5f2eb429fe4
https://doi.org/10.1118/1.4919279
https://doi.org/10.1118/1.4919279
Autor:
Rodney D. Wiersma, Z Grelewicz
Publikováno v:
Physics in Medicine and Biology. 59:1607-1621
Despite the existence of real-time kV intra-fractional tumor tracking strategies for many years, clinical adoption has been held back by concern over the excess kV imaging dose cost to the patient when imaging in continuous fluoroscopic mode. This wo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32b16cf584d0117337344fd913dca726
https://doi.org/10.1088/0031-9155/59/7/1607
https://doi.org/10.1088/0031-9155/59/7/1607
Publikováno v:
ACC
The alternating direction method of multipliers (ADMM) is applied to constrained quadratic optimization of intensity-modulated radiation therapy (IMRT) planning. The proximal operator for the ADMM algorithm is developed, and the algorithm is applied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f620c8e6fb0da715a96d8b183f3cbb27
https://doi.org/10.1109/acc.2016.7526548
https://doi.org/10.1109/acc.2016.7526548
Publikováno v:
Medical Physics. 39:3270-3282
Purpose: To simplify the often complex and user-dependent manual region of interest (ROI) selection process for head motion monitoring, an automatic ROI selection method was developed. Methods: The automatic ROI selection algorithm calculated the dis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::302fa54058167dd4d21b523130c51d72
https://doi.org/10.1118/1.4711805
https://doi.org/10.1118/1.4711805
Publikováno v:
Medical Physics. 39:2771-2779
Purpose: With the increasing use of external 3D optical tracking cameras to guide modern radiation therapy procedures, it has become vitally important to have an accurate camera to linear accelerator(LINAC) reference frame calibration. To eliminate e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::911dd7b07349670dfacfe16bd67c832f
https://doi.org/10.1118/1.3703836
https://doi.org/10.1118/1.3703836