Zobrazeno 1 - 10
of 386
pro vyhledávání: '"Sam, Beddar"'
Autor:
Ingrid Valencia Lozano, George Dedes, Steve Peterson, Dennis Mackin, Andreas Zoglauer, Sam Beddar, Stephen Avery, Jerimy Polf, Katia Parodi
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 33, Iss 2, Pp 124-134 (2023)
Compton-based prompt gamma (PG) imaging is being investigated by several groups as a potential solution for in vivo range monitoring in proton therapy. The performance of this technique depends on the detector system as well as the ability of the rec
Externí odkaz:
https://doaj.org/article/22613bf0864a4dd18326d94cad7efd27
Autor:
Ethan Stolen, Ryan Fullarton, Rain Hein, Robin L. Conner, Luiz G. Jacobsohn, Charles-Antoine Collins-Fekete, Sam Beddar, Ugur Akgun, Daniel Robertson
Publikováno v:
Sensors, Vol 24, Iss 7, p 2137 (2024)
Proton radiography is a promising development in proton therapy, and researchers are currently exploring optimal detector materials to construct proton radiography detector arrays. High-density glass scintillators may improve integrating-mode proton
Externí odkaz:
https://doaj.org/article/328fcfd4ca4648aba8251fd9f00b8bca
Autor:
Dong Joo Rhee, PhD, Sam Beddar, PhD, Joseph Abi Jaoude, MD, Gabriel Sawakuchi, PhD, Rachael Martin, PhD, Luis Perles, PhD, Cenji Yu, BA, Yulun He, BA, Laurence E. Court, PhD, Ethan B. Ludmir, MD, Albert C. Koong, MD, PhD, Prajnan Das, MD, MS, MPH, Eugene J. Koay, MD, PhD, Cullen Taniguichi, MD, PhD, Joshua S. Niedzielski, PhD
Publikováno v:
Advances in Radiation Oncology, Vol 8, Iss 4, Pp 101164- (2023)
Purpose: To determine the dosimetric limitations of daily online adaptive pancreas stereotactic body radiation treatment by using an automated dose escalation approach. Methods and Materials: We collected 108 planning and daily computed tomography (C
Externí odkaz:
https://doaj.org/article/8a6fc46a602c4b58b6707173805c4ba8
Autor:
Jerimy C. Polf, Carlos A. Barajas, Stephen W. Peterson, Dennis S. Mackin, Sam Beddar, Lei Ren, Matthias K. Gobbert
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
We studied the application of a deep, fully connected Neural Network (NN) to process prompt gamma (PG) data measured by a Compton camera (CC) during the delivery of clinical proton radiotherapy beams. The network identifies 1) recorded “bad” PG e
Externí odkaz:
https://doaj.org/article/9cd9eb047187490090e5ea09945565bf
Autor:
Gabriel P. Fonseca, Jacob G. Johansen, Ryan L. Smith, Luc Beaulieu, Sam Beddar, Gustavo Kertzscher, Frank Verhaegen, Kari Tanderup
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 16, Iss , Pp 1-11 (2020)
Brachytherapy can deliver high doses to the target while sparing healthy tissues due to its steep dose gradient leading to excellent clinical outcome. Treatment accuracy depends on several manual steps making brachytherapy susceptible to operational
Externí odkaz:
https://doaj.org/article/ec86ce32b47d4e9a8d637eaea0f529fa
Autor:
Igor Olaciregui-Ruiz, Sam Beddar, Peter Greer, Nuria Jornet, Boyd McCurdy, Gabriel Paiva-Fonseca, Ben Mijnheer, Frank Verhaegen
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 15, Iss , Pp 108-116 (2020)
External beam radiotherapy with photon beams is a highly accurate treatment modality, but requires extensive quality assurance programs to confirm that radiation therapy will be or was administered appropriately. In vivo dosimetry (IVD) is an essenti
Externí odkaz:
https://doaj.org/article/dedd9282d821421f92cd526f18ad8012
Autor:
Joseph Abi Jaoude, MD, Connor P. Thunshelle, BS, Ramez Kouzy, MD, Nicholas D. Nguyen, BA, Daniel Lin, BA, Laura Prakash, MD, Isabela M. Bumanlag, BS, Sonal S. Noticewala, MD, Joshua S. Niedzielski, PhD, Sam Beddar, PhD, Ethan B. Ludmir, MD, Emma B. Holliday, MD, Prajnan Das, MD, MS, MPH, Bruce D. Minsky, MD, Joseph M. Herman, MD, Matthew Katz, MD, Albert C. Koong, MD, PhD, Eugene J. Koay, MD, PhD, Cullen M. Taniguchi, MD, PhD
Publikováno v:
Advances in Radiation Oncology, Vol 6, Iss 6, Pp 100763- (2021)
Purpose: Patients with pancreatic cancer often receive radiation therapy before undergoing surgical resection. We compared the clinical outcomes differences between stereotactic body radiation therapy (SBRT) and 3-dimensional (3D)/intensity-modulated
Externí odkaz:
https://doaj.org/article/c2087c53eef8465490591073d13cd525
Publikováno v:
Sensors, Vol 22, Iss 18, p 6785 (2022)
(1) Background: The Exradin W2 is a commercially available scintillator detector designed for reference and relative dosimetry in small fields. In this work, we investigated the performance of the W2 scintillator in a 10 MV flattening-filter-free pho
Externí odkaz:
https://doaj.org/article/c07fc2304d05446e97c60c58cec2c925
Autor:
Gye Won Choi, Yelin Suh, Prajnan Das, Joseph Herman, Emma Holliday, Eugene Koay, Albert C. Koong, Sunil Krishnan, Bruce D. Minsky, Grace L. Smith, Cullen M. Taniguchi, Sam Beddar
Publikováno v:
Radiation Oncology, Vol 14, Iss 1, Pp 1-9 (2019)
Abstract Background Target localization in radiation therapy is affected by numerous sources of uncertainty. Despite measures to minimize the breathing motion, the treatment of hypofractionated liver radiation therapy is further challenged by residua
Externí odkaz:
https://doaj.org/article/3c9c82af1a1e43748f84716d1b47756b
Autor:
Debra Nana Yeboa, MD, Chidinma Anakwenze Akinfenwa, MD, MPH, Jonathan Nguyen, MS, Diana Amaya, RN, Beth de Gracia, RN, Matthew Ning, MD, MPH, Victoria Cox, Brian De, MD, Benjamin D. Smith, MD, Lili Lin, MD, Sam Beddar, PhD, Hanh Hoang, MS, Albert Koong, MD, PhD, Zhongxing Liao, MD
Publikováno v:
Advances in Radiation Oncology, Vol 6, Iss 3, Pp 100676- (2021)
Purpose: Clinical trial enrollment has declined globally as a result of the coronavirus disease 2019 (COVID-19) pandemic. This underscores the importance of structured methods to continue critical medical research safely and efficiently. Methods and
Externí odkaz:
https://doaj.org/article/a947fb974acd464aaee8b7136370299a