Results 71 to 80 of about 37,944 (182)

A Multi‐Institutional Retrospective Study of 21 Dogs Having Undergone Hypofractionated Radiotherapy for Adrenal Tumours (2017–2024)

Veterinary and Comparative Oncology, EarlyView.
ABSTRACT Radiation therapy (RT) has emerged as a promising non‐surgical approach for treating canine adrenal tumours. This multi‐institutional, retrospective study describes clinical outcomes for 21 dogs having been prescribed a course of hypofractionated image‐guided intensity‐modulated RT (IMRT) entailing delivery of 25–35 Gy total in 5 fractions ...
Yen‐Hao Erik Lai, Michael S. Kent, Michael W. Nolan, Dah‐Renn Fu, Jayme S. Looper   +4 more
wiley   +1 more source

Clinical impact of 99mTc-MAA SPECT/CT-based personalized predictive dosimetry in selective internal radiotherapy: a real-life single-center experience in unresectable HCC patients

European Journal of Hybrid Imaging, 2023
Background Recent data demonstrated that personalized dosimetry-based selective internal radiotherapy (SIRT) is associated with better outcome for unresectable hepatocellular carcinoma (HCC).
Ana-Maria Bucalau, Benoît Collette, Illario Tancredi, Michael Vouche, Martina Pezzullo, Jason Bouziotis, Rodrigo Moreno-Reyes, Nicola Trotta, Hugo Levillain, Jean Luc Van Laethem, Gontran Verset   +10 more
doaj   +1 more source

A geometrical model for the Monte Carlo simulation of the TrueBeam linac [PDF]

, 2015
Monte Carlo (MC) simulation of linacs depends on the accurate geometrical description of the head. The geometry of the Varian TrueBeam (TB) linac is not available to researchers. Instead, the company distributes phase-space files (PSFs) of the flattening-
Brualla, Lorenzo, Cozzi, Luca, Fogliata, Antonella, Rodriguez, Miguel, Sauerwein, Wolfgang, Sempau, Josep   +5 more
core   +3 more sources

Development and operation of a pixel segmented liquid-filled linear array for radiotherapy quality assurance

, 2004
A liquid isooctane (C$_{8}$H$_{18}$) filled ionization linear array for radiotherapy quality assurance has been designed, built and tested. The detector consists of 128 pixels, each of them with an area of 1.7 mm $\times$ 1.7 mm and a gap of 0.5 mm.
A Iglesias, A Pazos, Belletti S, Boag J W, Debye P, Eberle K, F Gómez, Fowler J F, J Mosquera, J Pardo, J Pena, J Sendón, Johansson B, L Franco, M Pombar, Martens C, Martens C, Pardo J, R Lobato, van Herk M, Wickman G   +20 more
core   +1 more source

In vivo imaging of pyrrole-imidazole polyamides with positron emission tomography [PDF]

, 2008
The biodistribution profiles in mice of two pyrrole-imidazole polyamides were determined by PET. Pyrrole-imidazole polyamides are a class of small molecules that can be programmed to bind a broad repertoire of DNA sequences, disrupt transcription factor ...
Bergstr  m, Burns, Chou, D. A. Harki, D. B. Stout, Dervan, Dervan, Dudouet, Edelson, Gross, Harapanhalli, Hsu, K  hnast, Lee, Lendvai, M. E. Phelps, N. Satyamurthy, P. B. Dervan, Phelps, Phelps, Poethko, Puckett, Roivainen, Schottelius, Tavitian, Toyokuni, Trauger   +26 more
core   +3 more sources

Stereotactic Body Radiation Therapy for Pediatric, Adolescent, and Young Adult Patients With Osteosarcoma: Local Control Outcomes With Dosimetric Analysis

Pediatric Blood &Cancer, Volume 73, Issue 3, March 2026.
ABSTRACT Background/Objectives Osteosarcoma is a radioresistant tumor that may benefit from stereotactic body radiation therapy (SBRT) for locoregional control in metastatic/recurrent disease. We report institutional practice patterns, outcomes, toxicity, and failures in osteosarcoma patients treated with SBRT.
Jenna Kocsis, Shauna R. Campbell, Jonathan Jang, Eashwar Somasundaram, Chandana A. Reddy, Jacob G. Scott, Lilyana Angelov, Peter M. Anderson, Matteo Trucco, Zachary Burke, Lukas Nystrom, Nathan Mesko, Anthony Magnelli, Erin S. Murphy   +13 more
wiley   +1 more source

Ratios of internal doses deposited in different organs to the whole body when such organ is adopted as source of 18F-fluorodeoxyglucose, a Monte Carlo Geant4 study on a male medical internal radiation dose phantom

World Journal of Nuclear Medicine, 2020
In the present study, the last stable version of Monte Carlo Geant4 code known as Geant4.10.3 has been used for measuring internal dose ratios to the whole body for about 40 organs.
Jaafar Bakkali, A Doudouh, A Biyi, K Bouyakhlef, O Sahel, Y Benameur   +5 more
doaj   +1 more source

Luminescence Dating of Sediments from Ancient Irrigation Features, and Associated with Occupation of the Hinterland around Anuradhapura, Sri Lanka [PDF]

, 2008
This study supports a new investigation into the development and decline of irrigation and associated human activity in the Anuradhapura Hinterland, Sri Lanka (section 2).
Adderley, P.W., Burbidge, C., Sanderson, D., Simpson, I.A.   +3 more
core  

His+ reversions Caused in Salmonella typhimurium by different types of ionizing radiation [PDF]

, 1988
The yield of his+ reversions in the Ames Salmonella tester strain TA2638 has been determined for 60Co γ rays, 140 kV X rays, 5.4 keV characteristic X rays, 2.2 MeV protons, 3.1 MeV α particles, and 18 MeV/U Fe ions.
Fitzek, M., Kellerer, Albrecht M., Roos, H., Thomas, W.-H.   +3 more
core   +1 more source

Commissioning and clinical implementation of an MLC tracking system: An evaluation of AAPM TG‐264 guidelines

Journal of Applied Clinical Medical Physics, Volume 27, Issue 3, March 2026.
Abstract Background Precise radiotherapy relies on accurately targeting tumours while minimising exposure to healthy tissue, yet patient and organ motion complicate treatment delivery. To address intra‐fractional motion, multi‐leaf collimator (MLC) tracking systems have recently been adopted, adapting beam shapes in real‐time.
André Haraldsson, Tobias Pommer, Emilia Persson, Hedda Enocsson, Mustafa Kadhim, Adalsteinn Gunnlaugsson, Per Munck af Rosenschöld   +6 more
wiley   +1 more source