Results 81 to 90 of about 12,503 (204)

A geometry‐based scaling model for stereotactic treatment volume definition in stereotactic centralized ablative radiation therapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Stereotactic Centralized Ablative Radiation Therapy (SCART) is a spatially fractionated radiotherapy strategy designed for large or bulky tumors by delivering an intensified ablative dose to a centrally located subvolume while allowing controlled dose reduction toward the tumor periphery.
Ningjing Siah, Pengyuan Qi, Bin Hu, Mi Chen, Ting Cao, Xin Li, Jun Han   +6 more
wiley   +1 more source

Nominal material density may not reflect TPS‐relevant density for 3D‐printed surgical reconstruction implants: An educational case study

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Additively manufactured (3D‐printed) surgical reconstruction implants are increasingly encountered in head and neck oncology and may introduce density assignment challenges during radiotherapy treatment planning. This case report describes a clinically significant dosimetric discrepancy arising from the application of nominal bulk material ...
Eric D. Ehler, Shane Edlund, Margaret Reynolds   +2 more
wiley   +1 more source

Development of express method for calculation of internal irradiation doses of laboratory rats using the chamber models [PDF]

Ядерна фізика та енергетика, 2007
On the basis of theoretical and experimental material, the calculation method of doses of internal irradiation of laboratory rats using the multichamber dosimetry model of metabolism of strontium.
A. I. Lypska, I. P. Drozd
doaj  

Assessment of 6MV flattening filter free (FFF) beam commissioning parameters for Versa HD and TrueBeam: A comparison study

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Flattening filter‐free (FFF) beams are increasingly deployed for stereotactic body radiotherapy (SBRT) and stereotactic radiosurgery (SRS). The Elekta Versa HD (VHD) and Varian TrueBeam (TB) are the two most widely used FFF‐capable platforms; however, no prior study has compared their 6 MV FFF commissioning parameters under fully ...
Mustafa K. Al‐Aseebee, Hussien Mraity, Marco Esposito   +2 more
wiley   +1 more source

The role of automated image co-registration and internal dosimetry in personalized medicine. [PDF]

Radiol Bras, 2023
Alexandre-Santos L, Wichert-Ana L.
europepmc   +1 more source

Monte carlo assessment of advanced shielding materials for space‐efficient radiotherapy vault design

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Conventional radiotherapy vault shielding typically employs 2 to 3 meters of ordinary concrete, consistent with NCRP Report 151 reference data. While NCRP 151 specifies dose‐based design goals rather than mandating particular materials, the practical default of concrete results in vault footprints of 150 to 200 m2 per linac, which ...
Beechui Koo, Richard Xu, Morgan Glennie, Jungwook Shin, Karl Farrey, Siyong Kim, James J. Sohn   +6 more
wiley   +1 more source

Quantitative evaluation of respiratory motion‐induced blurring in expiratory‐phase CBCT for pancreatic SBRT

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background Cone‐beam computed tomography (CBCT) is widely used in image‐guided radiotherapy because it reflects the patient's anatomy immediately before treatment. However, CBCT images of the abdominal organs, including the pancreas, are often degraded by respiratory motion.
Airi Nukushina, Ryota Yamada, Takaaki Yoshimura, Norio Katoh, Kentaro Nishioka, Hiroshi Tamura, Masataka Kitagawa, Keiji Kobashi, Takahiro Kanehira, Hidefumi Aoyama, Takayuki Hashimoto   +10 more
wiley   +1 more source

Impact of dopants on X‑ray attenuation of 3D‑printed polymers for mammography and tomosynthesis spectra

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Background 3D‐printing enables the production of anthropomorphic breast phantoms for assessing image quality in digital mammography (DM) and breast tomosynthesis (DBT). 3D‐printing materials must be selected carefully to mimic breast tissue attenuation for clinical spectra.
Adrián Belarra, Irene Hernández‐Girón, María Castillo‐García, Peter Homolka, Margarita Chevalier   +4 more
wiley   +1 more source

Intra-brain vascular models within the ICRP mesh-type adult reference phantoms for applications to internal dosimetry. [PDF]

Phys Med Biol, 2023
Correa-Alfonso CM, Withrow JD, Domal SJ, President BN, Dawson RJ, McCullum L, Beekman C, Grassberger C, Paganetti H, Bolch WE.   +9 more
europepmc   +1 more source

Systematic review of physical and dosimetric criteria for managing CIEDs in radiotherapy: A medical physicist's perspective

Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.
Abstract Aim Current radiotherapy (RT) guidelines for Cardiac Implantable Electronic Devices (CIEDs) are largely based on clinical management strategies and retrospective reports. This systematic review adopts a medical physics perspective to provide a critical, quantitative analysis of the technical evidence required for developing robust safety ...
Tiziana Malatesta, Agnese Barbareschi, Rita Alaimo, Emilio Mezzenga, Maria Grazia Brambilla, Anna Delana, Stefano Andreoli, Rita Consorti, Stefano Ren Kaiser, Marco Mapelli, Eugenia Moretti, Maria Mormile, Giulia Rambaldi Guidasci, Mara Severgnini, Lidia Strigari, Maria Daniela Falco   +15 more
wiley   +1 more source