Results 61 to 70 of about 2,730 (174)

The Learning Curve of Junior Endoscopists in EUS‐Guided Gastroenterostomy With the Wireless Simplified Technique: A Prospective Study

United European Gastroenterology Journal, Volume 14, Issue 2, March 2026.
ABSTRACT Introduction Learning curve of EUS‐guided Gastroenterostomy (EUS‐GE) has been explored through retrospective studies involving few elite senior endoscopists (SE), with procedural time as the main surrogate outcome. This study aims to evaluate the training of junior endoscopists (JE) approaching the technique and cover clinically relevant ...
Giuseppe Vanella, Francesco Frigo, Francesca Perelli, Rukaia Barà, Patrick Maisonneuve, Livia Archibugi, Matteo Tacelli, Gaetano Lauri, Daniele Bellafante, Niccolò Bina, Rubino Nunziata, Paolo Biamonte, Ruggero Ponz De Leon Pisani, Gabriele Capurso, Paolo Giorgio Arcidiacono   +14 more
wiley   +1 more source

A comparison of measured and calculated values of air kerma rates from 137Cs in soil

Радиационная гигиена, 2016
In 2010, a study was conducted to determine the air gamma dose rate from 137Cs deposited in soil. The gamma dose rate measurements and soil sampling were performed at 30 reference plots from the south-west districts of the Bryansk region (Russia) that ...
V. P. Ramzaev, V. Yu. Golikov
doaj  

Radiation Dose during Digital Subtraction Angiography of the Brain—The Influence of Examination Parameters and Patient Factors on the Dose

Brain Sciences
Cerebral vascular angiography, or digital subtraction angiography (DSA), is essential for diagnosing neurological conditions but poses radiation risks.
Sandra Modlińska, Jakub Kufel, Michał Janik, Łukasz Czogalik, Piotr Dudek, Marcin Rojek, Miłosz Zbroszczyk   +6 more
doaj   +1 more source

Signal‐to‐noise and spatial resolution in in‐line imaging. 3. Optimization using a simple model

Journal of Synchrotron Radiation, Volume 33, Issue 2, Page 395-408, March 2026.
Geometrical magnification and X‐ray energy are optimized with respect to spatial resolution, contrast, noise, radiation dose and other image quality characteristics. The optimization is performed using a simple theoretical model of a homogeneous edge feature embedded in a bulk uniform sample, and the resulting generic analytical expressions for image ...
Timur E. Gureyev, David M. Paganin, Harry M. Quiney   +2 more
wiley   +1 more source

Continuing Professional Development — Medical Imaging

Journal of Medical Radiation Sciences, EarlyView.
wiley   +2 more sources

Energy dependence of the response of X-ray multimeter for radiation qualities in mammography

Scientific Reports
Ensuring comprehensive quality control of breast imaging systems involving ionizing radiation like mammography and tomosynthesis is crucial for high diagnostic confidence and maintaining an acceptable patient dose.
Elisabeth Salomon, Peter Homolka, Istvan Csete, Paula Toroi   +3 more
doaj   +1 more source

High energy photon reference for radiation protection: technical design of the LINAC beam and ionization chambers; and calculation of monoenergetic conversion coefficients

EPJ Web of Conferences, 2016
In this work, we present the results of the first part of a research project aimed at offering a complete response to dosimeters providers and nuclear physicists’ demands for high-energy (6 – 9 MeV) photon beams for radiation protection purposes ...
Dusciac D., Bordy J.-M., Daures J., Blideanu V.   +3 more
doaj   +1 more source

Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources

Journal of Medical Physics, 2016
The well-type ionization chamber has been designed for convenient use in brachytherapy source strength calibration. The chamber has a volume of 240 cm 3 , weight of 2.5 kg, and is open to atmospheric conditions.
Sathiyan Saminathan, Henry Finlay Godson, Retna Ponmalar, Ravikumar Manickam, James Mazarello   +4 more
doaj   +1 more source

Air-kerma evaluation at the maze entrance of HDR brachytherapy facilities

Journal of Radiological Protection, 2014
In the absence of procedures for evaluating the design of brachytherapy (BT) facilities for radiation protection purposes, the methodology used for external beam radiotherapy facilities is often adapted. The purpose of this study is to adapt the NCRP 151 methodology for estimating the air-kerma rate at the door in BT facilities.
Pujades, M.C., Granero, D., Vijande, J., Ballester, F., Perez-Calatayud, J., Papagiannis, P., Siebert, F.A.   +6 more
openaire   +4 more sources

Development of a 3-D-printed mouse phantom to replace current mouse animal model [PDF]

Nuclear Technology and Radiation Protection
Evaluating the radiation dose of target organs of a laboratory mouse requires a glass dosimeter to be surgically inserted at the irradiated location.
Kye Yong Uk, Kim Hyo Jin, Lee Chang Geun, Jo Wol Soon, Lee Ji Eun, Bae Min Ji, Mok Seongyun, Jang Hee Jin, Kang Yeong-Rok   +8 more
doaj   +1 more source