Results 201 to 210 of about 42,019 (243)

In vivo dosimetry during tangential breast treatment

Radiotherapy and Oncology, 1991
The 3-dimensional (3-D) dose distribution as calculated in clinical practice for tangential breast treatment was verified by means of in vivo dosimetry. Clinical practice in our institution implies the use of 8 MV X-ray beams, a 2-D treatment planning system, collimator rotation and a limited set of patient data for dose calculations.
Heukelom, S., Lanson, J. H., van Tienhoven, G., Mijnheer, B. J.   +3 more
openaire   +4 more sources

Catching errors with in vivo EPID dosimetry

Medical Physics, 2010
The potential for detrimental incidents and the ever increasing complexity of patient treatments emphasize the need for accurate dosimetric verification in radiotherapy. For this reason, all curative treatments are verified, either pretreatment or in vivo, by electronic portal imaging device (EPID) dosimetry in the Radiation Oncology Department of the ...
Mans, A., Wendling, M., McDermott, L. N., Sonke, J. J., Tielenburg, R., Vijlbrief, R., Mijnheer, B., van Herk, M., Stroom, J. C.   +8 more
openaire   +3 more sources

In-vivo portal dosimetry by an ionization chamber

Physica Medica, 2005
As all methods for in-vivo dosimetry require special efforts many physicists are often discouraged in verifying the middle dose in a patient along the beam central axis. This work reports a practical method for the determination of the middle dose value, D(m), on the central beam axis, using a signal S(t), obtained by a small thimble ion-chamber ...
Piermattei, Angelo, Grimaldi, Luca, D'Onofrio, Guido, Cilla, Savino, Viola, Pietro, Craus, Maurizio, Fidanzio, Andrea, Azario, Luigi, Deodato, Francesco, Macchia, Gabriella, Morganti, Alessio Giuseppe   +10 more
openaire   +3 more sources

Real-Time In Vivo Dosimetry

2017
The pursuit of in vivo dosimetry (IVD) in brachytherapy has been the subject of investigation by prominent research groups around world. The characteristic features of high-dose rate (HDR) brachytherapy treatments are in many cases also the drivers of the need for a solution: HDRs, few fractions, highly conformal dose distributions, with steep dose ...
Luc Beaulieu, Rick Franich, Ryan L. Smith   +2 more
openaire   +1 more source

Generalized EPID calibration for in vivo transit dosimetry

Physica Medica, 2011
Many researchers are studying new in vivo dosimetry methods based on the use of Elelctronic portal imaging devices (EPIDs) that are simple and efficient in their daily use. However the need of time consuming implementation measurements with solid water phantoms for the in vivo dosimetry implementation can discourage someone in their use.
Andrea, Fidanzio, Savino, Cilla, Francesca, Greco, Laura, Gargiulo, Luigi, Azario, Domenico, Sabatino, Angelo, Piermattei   +6 more
openaire   +3 more sources

Towardsin vivoTLD dosimetry in mammography

The British Journal of Radiology, 2004
While phantoms are used for quality control assessment of the mammography unit, in vivo dose measurements are necessary to account for the variation in size and composition of the female breast. The use of thermoluminescent dosimeters (TLDs) in mammography has been limited due to TLD visibility.
Warren-Forward, H. M., Duggan, L.
openaire   +2 more sources

Clinical pilot study for EPID-based in vivo dosimetry using EPIgray™ for head and neck VMAT.

Physical and Engineering Sciences in Medicine, 2022
Sophie D Halliday, R. Day, L. Greig, R. Louwe   +3 more
semanticscholar   +1 more source

Improving dose delivery accuracy with EPID in vivo dosimetry: results from a multicenter study

Strahlentherapie und Onkologie (Print), 2021
M. Esposito, A. Piermattei, S. Bresciani, L. Orlandini, M. Falco, S. Giancaterino, S. Cilla, A. Ianiro, R. Nigro, L. Botez, S. Riccardi, A. Fidanzio, F. Greco, E. Villaggi, S. Russo, M. Stasi   +15 more
semanticscholar   +1 more source

In Vivo Dosimetry for BNCT

2000
A phase I BNCT trial in glioblastoma started at the Finnish BNCT facility in May 1999. The aim of the present work was to verify the doses calculated in treatment planning and estimate the whole body dose on the basis of neutron fluence and gamma dose measurements in vivo and in a whole body phantom.
Karila, Johanna, Aschan, Carita, Seren, Tom, Kortesniemi, Mika, Kotiluoto, Petri, Seppälä, Tiina, Toivonen, Matti, Kankaanranta, Leena, Joensuu, Heikki, Auterinen, Iiro, Savolainen, Sauli   +11 more
openaire   +3 more sources

Skin in vivo Dosimetry in Radiotherapy

2018
Introduction: Due to the prevalence of skin problems in patients after radiotherapy, skin dose measuring is importance. Content: Skin in vivo dosimetry means measuring the patient's (or phantom) skin dose during radiotherapy. According to the ICRP 59, the dose at the depth of 0.07 mm is known as a skin dose.
Mohammadi, Mahdi, Zaghian, Razieh, haghparast, abbas   +2 more
openaire   +1 more source