Results 71 to 80 of about 365,633 (275)

Conversion coefficients for determination of dispersed photon dose during radiotherapy: NRUrad input code for MCNP. [PDF]

PLoS ONE, 2017
Radiotherapy is a common cancer treatment module, where a certain amount of dose will be delivered to the targeted organ. This is achieved usually by photons generated by linear accelerator units.
Mehrdad Shahmohammadi Beni, C Y P Ng, D Krstic, D Nikezic, K N Yu   +4 more
doaj   +1 more source

Correction of megavoltage cone-beam CT images of the pelvic region based on phantom measurements for dose calculation purposes. [PDF]

, 2009
Megavoltage cone-beam CT (MVCBCT) is an imaging technology that provides a 3D representation of the patient in treatment position. Because it is a form of x-ray tomography, MVCBCT images give information about the attenuation coefficients of the imaged ...
Aubry, Jean-François, Beaulieu, Luc, Cheung, Joey, Gottschalk, Alexander, Morin, Olivier, Pouliot, Jean   +5 more
core  

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gabor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Dose coefficients of mesh-type reference Korean phantoms (MRKPs) for idealized external exposure geometries of photons and electrons

Nuclear Engineering and Technology
The present study produced Korean-specific dose coefficients for idealized external exposures to photons and electrons by performing Monte Carlo dose calculations with mesh-type reference Korean phantoms (MRKPs).
Sungho Moon, Chansoo Choi, Bangho Shin, Gahee Son, Haegin Han, Hyeonil Kim, Suhyeon Kim, Jaehyo Kim, Yumin Lee, Jong Hwi Jeong, Chan Hyeong Kim, Yeon Soo Yeom   +11 more
doaj   +1 more source

Nonclinical study and applicability of the absorbed dose conversion method with a single biodistribution measurement for targeted alpha-nuclide therapy

EJNMMI Physics, 2021
Background We recently reported a new absorbed dose conversion method, RAP (RAtio of Pharmacokinetics), for 211At-meta-astatobenzylguanidine (211At-MABG) using a single biodistribution measurement, the percent injected dose/g.
Tetsuya Sakashita, Shojiro Matsumoto, Shigeki Watanabe, Hirofumi Hanaoka, Yasuhiro Ohshima, Yoko Ikoma, Naoyuki Ukon, Ichiro Sasaki, Tatsuya Higashi, Tetsuya Higuchi, Yoshito Tsushima, Noriko S. Ishioka   +11 more
doaj   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

Effective dose conversion coefficients as a function of patient weight for routine X-ray examination

Радиационная гигиена
Based on the information regarding the parameters of routine radiographic procedures the values of the conversion coefficients to the effective dose in patients of different weights were calculated.
V. Yu. Golikov, A. V. Vodovatov, D. D. Lavreshov   +2 more
doaj   +1 more source

A revised compartmental model for biokinetics and dosimetry of 2-[18F]FDG

EJNMMI Physics, 2023
Background The aim was to review available biokinetic data, collect own experimental data, and propose an updated compartmental model for 2-[18F]FDG in the frame of the revision of the ICRP report on dose coefficients for radiopharmaceuticals used in ...
Alexandra Kamp, Martin Andersson, Sigrid Leide-Svegborn, Dietmar Noβke, Sören Mattsson, Augusto Giussani   +5 more
doaj   +1 more source

Non-extensive radiobiology

, 2010
The expression of survival factors for radiation damaged cells is based on probabilistic assumptions and experimentally fitted for each tumor, radiation and conditions. Here we show how the simplest of these radiobiological models can be derived from the
Antoranz, José Carlos, Rodríguez-Pérez, Daniel, Sotolongo-Costa, Oscar, Sotolongo-Grau, Oscar   +3 more
core   +1 more source

Using Box–Behnken experimental design to optimize the degradation of Basic Blue 41 dye by Fenton reaction

, 2020
Degradation of a Basic Blue 41 dye using Fenton reagent was examined at laboratory scale in batch experiments using Box-Behnken statistical experiment design.
Kiflie, Zebene, Solomon, Desta, Van Hulle, Stijn   +2 more
core   +2 more sources