Results 21 to 30 of about 543,949 (257)

Organ Dose Measurement in Computed Tomography Using Thermoluminescence Dosimeter in Locally Developed Phantoms [PDF]

Iranian Journal of Medical Physics, 2019
Introduction: Organ dose estimation using thermoluminescence dosimeter (TLD) is known to be a standard, although many other methods, such as simulation software, optically stimulated luminescent dosimeters, and photodiodes are still in use.
Michael Akpochafor, SAMUEL ADENEYE, Muhammad Habeebu, AKINTAYO OMOJOLA, Nusirat Adedewe, Aderonke Adedokun, Dare Adewa, SUNDAY AJIBADE, Victor Ekpo, Moses Aweda   +9 more
doaj   +1 more source

Matching target dose to target organ [PDF]

F1000Research, 2016
In vitro assays have become a mainstay of modern approaches to toxicology with the promise of replacing or reducing the number of in vivo tests required to establish benchmark doses, as well as increasing mechanistic understanding.
Bannon, Desmond I., Williams, Marc A.
openaire   +3 more sources

Inclusion of organ deformation in dose calculations [PDF]

Medical Physics, 2003
A previously described system for modeling organ deformation using finite element analysis has been extended to permit dose calculation. Using this tool, the calculated dose to the liver during radiotherapy can be compared using a traditional static model (STATIC), a model including rigid body motion (RB), and finally a model that incorporates rigid ...
Brock, K. K., McShan, D. L., Ten Haken, R. K., Hollister, S. J., Dawson, L. A., Balter, J. M.   +5 more
openaire   +3 more sources

Estimating Organ Doses from Pediatric Cerebral Computed Tomography Using the WAZA-ARI Web-Based Calculator [PDF]

Journal of Radiation Protection and Research, 2021
Background The use of computed tomography (CT) device has increased in the past few decades in Japan. Dose optimization is strongly required in pediatric CT examinations, since there is concern that an unreasonably excessive medical radiation exposure ...
Reo Etani, Takayasu Yoshitake, Michiaki Kai   +2 more
doaj   +1 more source

Assessment of Organ Doses for Patients undergoing 99mTc-MIBI Myocardial Perfusion Imaging. [PDF]

Egyptian Journal of Nuclear Medicine, 2020
Radiation absorbed doses associated with myocardial perfusion imaging (MPI) using 99mTc-MIBI has been determined at the Radioisotopes Institute of the Abdou Moumouni University.
Moussa, I., Hasford, F, Kyere, AK, Ali, A., Soli, A   +4 more
doaj   +1 more source

Analysis of aluminum protective effect for female astronauts in solar particle events [PDF]

Nuclear Technology and Radiation Protection, 2017
In order to ensure the health and safety of female astronauts in space, the risks of space radiation should be evaluated, and effective methods for protecting against space radiation should be investigated.
Xu Feng, Jia Xianghong, Liu Qian, Lu Wei, Pan Zhanchun, Yang Chunxin   +5 more
doaj   +1 more source

Establishment of Diagnostic Reference Levels in Cone Beam Computed Tomography Scans in the United Arab Emirates

Tomography, 2022
This study aimed to address the knowledge gap in assessing the radiation doses from cone beam computed tomography (CBCT) procedures, establishing a typical value, and estimating effective and organ doses.
Mohamed M. Abuzaid, Wiam Elshami, Deepa Jayachandran, Noushad Korappil, Huseyin O. Tekin   +4 more
doaj   +1 more source

Radiation dose estimation of patients undergoing lumbar spine radiography

Journal of Medical Physics, 2013
Radiation dose to organs of 100 adult patients undergoing lumbar spine (LS) radiography at a University Hospital have been assessed. Free in air kerma measurement using an ionization chamber was used for the patient dosimetry. Organ and effective dose to
Prince Kwabena Gyekye, Adu Simon, Emi-Reynolds Geoffrey, Yeboah Johnson, Inkoom Stephen, Cynthia Kaikor Engmann, Wotorchi-Gordon Samuel   +6 more
doaj   +1 more source

ORGAN ABSORBED DOSE ESTIMATION REFLECTING SPECIFIC ORGAN MASSES WITH SIMPLE SCALING OF REFERENCE DOSES USING THE ORGAN MASSES

Radiation Protection Dosimetry, 2020
Abstract Estimating organ absorbed doses in consideration of person-specific parameters is important for radiation protection in diagnostic nuclear medicine. This study proposes a straightforward method for estimating the organ dose that reflects a specific organ mass by scaling the reference organ dose using the inverse ratio of the ...
Kentaro, Manabe, Shuji, Koyama
openaire   +2 more sources

A Review of Organ Dose Calculation Methods and Tools for Patients Undergoing Diagnostic Nuclear Medicine Procedures [PDF]

Journal of Radiation Protection and Research
Exponential growth has been observed in nuclear medicine procedures worldwide in the past decades. The considerable increase is attributed to the advance of positron emission tomography and single photon emission computed tomography, as well as the ...
Choonsik Lee
doaj   +1 more source