Results 71 to 80 of about 19,704 (214)

Novel X-ray imaging technology enables significant patient dose reduction in interventional cardiology while maintaining diagnostic image quality [PDF]

, 2015
Objectives: The purpose of this study was to quantify the reduction in patient radiation dose during coronary angiography (CA) by a new X-ray technology, and to assess its impact on diagnostic image quality.
Bacher, Klaus, Buytaert, Dimitri, De Pooter, Jan, Drieghe, Benny, Eloot, Liesbeth, Gijs, Thomas, Lapere, Régine, Taeymans, Yvo, Thierens, Hubert, VAN PETEGHEM, SYLVIE   +9 more
core   +1 more source

Technique considerations for implementing volumetric‐modulated arc therapy for total body irradiation within an Australian tertiary institution

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 165-172, March 2025.
In 2020, our institution transitioned to the Eclipse™ treatment planning system and to Truebeam® linear accelerators with 6 MV and 10 MV energies. The linear accelerators were installed in smaller bunkers that could not accommodate 400 cm FAD. A multidisciplinary team within the institution was created to evaluate existing total body irradiation ...
Gabriella La Macchia, Clare Wan, Joshua Dass, Mandy Taylor, Gabor Neveri, Malgorzata Skorska   +5 more
wiley   +1 more source

Design and dosimetric characterization of a transportable proton minibeam collimation system

Frontiers in Oncology
BackgroundProton Minibeam Radiation Therapy has shown to widen the therapeutic window compared to conventional radiation treatment in pre-clinical studies.
Mabroor Ahmed, Mabroor Ahmed, Elke Beyreuther, Elke Beyreuther, Sebastian Gantz, Sebastian Gantz, Felix Horst, Felix Horst, Juergen Meyer, Jörg Pawelke, Jörg Pawelke, Thomas E. Schmid, Thomas E. Schmid, Jessica Stolz, Jessica Stolz, Jan J. Wilkens, Stefan Bartzsch, Stefan Bartzsch   +17 more
doaj   +1 more source

Automated quality assurance of HDR brachytherapy: Evaluation of Dwell‐position accuracy and Dwell‐time linearity via image processing of radiochromic films

Precision Radiation Oncology, EarlyView.
This study develops a method combining radiochromic film and image processing to assess HDR brachytherapy source accuracy and linearity, achieving high precision and efficiency . Abstract Purpose To develop and validate a fully automated quality assurance method for high‐dose rate (HDR) brachytherapy, enabling the precise evaluation of source dwell ...
Qingqing Yuan, Suyan Bi, En Lou, YaJun Jia, Zhitao Dai   +4 more
wiley   +1 more source

One‐year follow‐up after fractionated ultra‐high‐dose‐rate FLASH radiotherapy in patient with extramammary Paget disease of the scrotum

Precision Radiation Oncology, EarlyView.
An elderly male patient with extramammary Paget disease of the scrotum and multiple metastases was treated with fractionated FLASH‐RT (40 Gy in 5 fractions) in the scrotal lesion. Abstract Objective Ultrahigh‐dose‐rate radiotherapy (FLASH‐RT) has been shown to reduce radiation‐induced normal tissue injury in preclinical studies.
Hui Luo, Chengliang Yang, Ronghu Mao, Leijie Ma, Hongchang Lei, Peng Chen, Yanping Zhang, Meng Xu, Chao Wang, Yiwu Wang, Mingxia Wu, Chanjun Sun, Han Liu, Hui Liu, Hong Ge   +14 more
wiley   +1 more source

Implementation and validation of 2-D-array based tests in routine linac quality assurance

Zeitschrift für Medizinische Physik
Purpose: In medical linac quality assurance (QA), to replace film dosimetry with low-resolution 2-D ionization chamber array measurements, to validate the procedures, and to perform a comprehensive sensitivity analysis.
Jiří Valenta, Manfred Schmidt, Christoph Bert   +2 more
doaj   +1 more source

Measurement of Collimator Scatter Factor for Photon Fields Using Gafchromic EBT2 Film and Ion Chamber [PDF]

, 2016
Background and Objective: In radiotherapy, measurement of the output factor in the air is one of the input parameters for Implementation of treatment planning systems and beam modeling.
Asgarian Dehkordy, Zeinab., Atarod, Maryam., Chegeni, Nahid., Eini, Fariba., Hoseini, Seyed Mohammad., Tahmasebi Birgan, Mohammad Javad.   +5 more
core  

Towards 3D printed multifunctional immobilization for proton therapy: initial materials characterization [PDF]

, 2016
Purpose: 3D printing technology is investigated for the purpose of patient immobilization during proton therapy. It potentially enables a merge of patient immobilization, bolus range shifting, and other functions into one single patient-speci c structure.
Ahn, American Society for Testing and Materials, Antoine D’Hollander, Attix, Barker, Barten, Bazalova, Crijns, Edmond Sterpin, Engelsman, Georg, Gottschalk, Guozhi Zhang, Hünemohr, Hünemohr, Jean-Marc Denis, Johns, Ju, Karin Haustermans, Kenneth Poels, Landry, Langendijk, Lindsay, Lomax, Lomax, Mathias Kersemans, Matsumoto, Mayer, Melchels, Nicolas Lammens, Palta, Ramaekers, Rutherford, Safai, Saito, Sandra Nuyts, Schneider, Seltzer, Sisterson, Steven Michiels, Titt, Tom Depuydt, Zhang, Zhao, Zou   +44 more
core   +2 more sources

Impact of Device Architecture on Proton Detection Efficiency in 2D Perovskite Thick Film Detectors

Small, EarlyView.
This work shows the role of device architecture in MeV proton detection with 2D perovskite thick (> 1 µm) films. A direct comparison between planar and stacked devices demonstrates that the stacked geometry achieves superior response by enabling more efficient charge collection and better exploitation of the active layer volume, ensuring stable and ...
Giulia Napolitano, Sara Cepić, Ilaria Fratelli, Massimo Chiari, Beatrice Fraboni, Laura Basiricò   +5 more
wiley   +1 more source

KARAKTERISTIK DOSIMETRI FILM GAFCHROMIC EBT3 PADA BERKAS ELEKTRON DAN FOTON

Spektra: Jurnal Fisika dan Aplikasinya, 2016
Abstrak Elektron energi tinggi bermanfaat dalam radioterapi target permukaan dapat pula digunakan sebagai eskalasi dosis sumber berkas foton. Dalam jaminan kualitas radioterapi membutuhkan dosimeteryang akurat, respon yang baik terhadapdosis dan ...
Syarifatul Ulya, Wahyu Edy Wibowo, Nuruddin Nuruddin, Supriyanto Ardjo Pawiro   +3 more
doaj   +1 more source