Zobrazeno 1 - 10
of 22
pro vyhledávání: '"James J. Sohn"'
Publikováno v:
Technical Innovations & Patient Support in Radiation Oncology, Vol 32, Iss , Pp 100273- (2024)
Due to anatomical changes between pre-planning and implantation, there exists a need for tools that can streamline the adjustment of needle and seed configurations in low dose rate brachytherapy for prostate cancer. Specifically, upon taking a second
Externí odkaz:
https://doaj.org/article/112c9040cfb34f9f828d9aa957514612
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 27, Iss , Pp 100462- (2023)
Purpose: Periodic imaging quality assurance (QA) of magnetic resonance imaging linear accelerator (MRL) is critical. The feasibility of a new MRL imaging phantom used for QA in the low field was evaluated with automated image analysis of various para
Externí odkaz:
https://doaj.org/article/d5bee0b669db41488a65475455677c11
Autor:
James J. Sohn, Mitchell Polizzi, Sang-Won Kang, Woo-Hyeong Ko, Yong-Hyun Cho, Keun-Yong Eom, Jin-Beom Chung
Publikováno v:
Frontiers in Oncology, Vol 12 (2022)
PurposeIn high-dose-rate (HDR) brachytherapy, an anisotropic dose distribution may be desirable for achieving a higher therapeutic index, particularly when the anatomy imposes challenges. Several methods to deliver intensity-modulated brachytherapy (
Externí odkaz:
https://doaj.org/article/168e9960df364637b85bc83f2b11b9eb
Autor:
Jing Wang, Xiaofeng Yang, Boran Zhou, James J. Sohn, Jun Zhou, Jesse T. Jacob, Kristin A. Higgins, Jeffrey D. Bradley, Tian Liu
Publikováno v:
Journal of Imaging, Vol 8, Iss 3, p 65 (2022)
Ultrasound imaging of the lung has played an important role in managing patients with COVID-19–associated pneumonia and acute respiratory distress syndrome (ARDS). During the COVID-19 pandemic, lung ultrasound (LUS) or point-of-care ultrasound (POC
Externí odkaz:
https://doaj.org/article/8fb30d3eb6a74e28b8dc1217514de5c0
Publikováno v:
Frontiers in Oncology, Vol 10 (2020)
Purpose: Conventional iterative low-dose CBCT reconstruction techniques are slow and tend to over-smooth edges through uniform weighting of the image penalty gradient. In this study, we present a non-iterative analytical low-dose CBCT reconstruction
Externí odkaz:
https://doaj.org/article/1128698e4dc5411e8486bdceca79cf5a
Autor:
James J. Sohn, Mitchell Polizzi, Dylan Richeson, Somayeh Gholami, Indra J. Das, William Y. Song
Publikováno v:
Journal of Clinical Medicine; Volume 11; Issue 23; Pages: 6989
A novel clinical workflow utilizing a direction modulated brachytherapy (DMBT) tandem applicator in combination with a patient-specific, 3D printed vaginal needle-track template for an advanced image-guided adaptive interstitial brachytherapy of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc20b542da7d81ac3c771c1f1793f1b1
Publikováno v:
Biomedical Physics & Engineering Express. 9:045006
Objective: Proton therapy offers an advantageous dose distribution compared to the photon therapy, since it deposits most of the energy at the end of range, namely the Bragg peak (BP). Protoacoustic technique was developed to in vivo determine the BP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baac2b9318c2966a49a8356e6e98bec2
https://doi.org/10.1088/2057-1976/acd257
https://doi.org/10.1088/2057-1976/acd257
Autor:
Robert Hawranko, James J. Sohn, Keith Neiderer, Ed Bump, Timothy Harris, Emma C. Fields, Elisabeth Weiss, William Y. Song
Publikováno v:
Journal of Clinical Medicine; Volume 11; Issue 9; Pages: 2584
This study investigates plan quality generated by an MR-Linac (MRL) treatment planning system (TPS) for 5-fraction stereotactic body radiation therapy (SBRT) of primary pancreatic cancer (PCa). In addition, an isotoxic dose escalation was investigate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d1e103bb310c281b1d6161588792abb
https://pubmed.ncbi.nlm.nih.gov/35566712
https://pubmed.ncbi.nlm.nih.gov/35566712
Publikováno v:
Physics in medicine and biology. 65(14)
In proton-based radiotherapy, proton radiography could allow for direct measurement of the water-equivalent path length (WEPL) in tissue, which can then be used to determine relative stopping power (RSP). Additionally, proton radiographs allow for im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1982eb8cb996c8aa2d07eec6ef2b9b0
https://pubmed.ncbi.nlm.nih.gov/32498053
https://pubmed.ncbi.nlm.nih.gov/32498053
Publikováno v:
Medical Imaging 2020: Ultrasonic Imaging and Tomography.
Protoacoustics, the measurement of the pressure waves emitted by thermal expansion resulting from proton dose deposition, may be used to obtain the depth of the Bragg-peak (BP) by measuring the time-of-flight of the pressure wave. However, using the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d4323421ff52d847f09e95aa6014e46
https://doi.org/10.1117/12.2550768
https://doi.org/10.1117/12.2550768