gd contrast agent
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scholarly journals Calculation of radiation dose enhancement by gadolinium compounds for radiation therapy

2022 ◽  
Vol 2155 (1) ◽  
pp. 012030
Author(s):  
G.A. Abdullaeva ◽  
G.A. Kulabdullaev ◽  
A.A. Kim ◽  
A.F. Nebesny ◽  
D.O. Yuldashev
Keyword(s):  
Radiation Therapy ◽  
Contrast Agent ◽  
Biological Tissue ◽  
Radiation Energy ◽  
Dose Enhancement ◽  
X Ray ◽  
Photon Irradiation ◽  
Irradiation Energy ◽  
Gd Contrast Agent ◽  
Shell Ionization

Abstract In this study, we evaluate the features of dose enhancement with Gd contrast agent (Magnevist). Due to the increased relaxation time and high atomic number (z=64) Gd can be used in radiation therapy as a radiosensitizer. To perform a quantitative evaluation of the radiosensitization effect is determined a parameter called the dose enhancement factor - DEF. The DEF values were calculated based on the analysis of the mass absorption coefficients for gadolinium and biological tissue. An increase in DEF is observed when the radiation energy is higher than the K-shell ionization energy of Gd atoms. For the presence of 20315 ppm Gd contrast agent in biological tissue the dose enrichment factor is maximum DEF = 4.12 at photon irradiation energy 60 keV. Also, based on calculations for photon irradiation sources considered high degrees of dose enhancement occur for Am-241, Yb-196, and 100 kVp X-ray tube.

Superfine Magnetic Resonance Imaging of the Cerebrovasculature Using Self-Assembled Branched Polyethylene Glycol-Gd Contrast Agent

2018 ◽  
Vol 18 (5) ◽  
pp. 1700391 ◽  
Author(s):  
Atsushi Mahara ◽  
Jun-ichiro Enmi ◽  
Yu-I Hsu ◽  
Naoki Kobayashi ◽  
Yoshiaki Hirano ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Polyethylene Glycol ◽  
Magnetic Resonance ◽  
Contrast Agent ◽  
Resonance Imaging ◽  
Branched Polyethylene ◽  
Self Assembled ◽  
Gd Contrast Agent

scholarly journals Erratum: Corrigendum: A liposomal Gd contrast agent does not cross the mouse placental barrier

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Anil N. Shetty ◽  
Robia Pautler ◽  
Ketan Ghaghada ◽  
David Rendon ◽  
Haijun Gao ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Placental Barrier ◽  
Gd Contrast Agent

scholarly journals Calculation of X-ray dose enhancement factor in assumed labeled tumor by Gd contrast agent using Geant4

2015 ◽  
Vol 7 (1) ◽  
pp. 27-36
Author(s):  
M Elhamnia ◽  
M Ghasemi ◽  
M Sadeghi ◽  
M Hosntalab
Keyword(s):  
Contrast Agent ◽  
Enhancement Factor ◽  
Dose Enhancement ◽  
X Ray ◽  
Gd Contrast Agent

Perfusion Analysis for Lung MR Images Considering Non-Monotonic Response of Gd-Contrast Agent

2014 ◽  
Vol 47 (3) ◽  
pp. 3587-3592 ◽  
Author(s):  
Tomoki Saka ◽  
Masaki Ichikawa ◽  
Seiichiro Kagei ◽  
Toshiyuki Gotoh ◽  
Tae Iwasawa ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Mr Images ◽  
Gd Contrast Agent ◽  
Lung Mr

scholarly journals Measuring SPIO and Gd contrast agent magnetization using 3 T MRI

2009 ◽  
Vol 22 (8) ◽  
pp. 891-897 ◽  
Author(s):  
Pádraig Cantillon-Murphy ◽  
Lawrence L. Wald ◽  
Markus Zahn ◽  
Elfar Adalsteinsson
Keyword(s):  
Contrast Agent ◽  
Gd Contrast Agent

Dual-energy coronary angiography in pigs using a Gd contrast agent

2000 ◽  
Author(s):  
Stefan Fiedler ◽  
Helene Elleaume ◽  
Geraldine Le Duc ◽  
Christian Nemoz ◽  
Thierry Brochard ◽  
...  
Keyword(s):  
Coronary Angiography ◽  
Contrast Agent ◽  
Dual Energy ◽  
Gd Contrast Agent
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