نتایج جستجو برای: 3 d dosimetry

تعداد نتایج: 2222421  

Journal: :International Journal of Information Technology Convergence and Services 2016

2016

2015 Jul;165(1-4):50-2. Abstract » 2. REHANI, M.M., BERRIS, T., TEMPLATES AND EXISTING ELEMENTS AND MODELS FOR IMPLEMENTATION OF PATIENT EXPOSURE TRACKING, Radiat. Prot. Dosimetry. (Jul. 2013). Abstract » 3. REHANI, M.M., FRUSH, D.P., BERRIS, T., EINSTEIN, A.J., Patient radiation exposure tracking: Worldwide programs and needs--Results from the first IAEA survey, Eur. J. Radiol. 81 10 (Oct. 201...

Journal: :European heart journal 2012
Gian Luigi Russo Idolo Tedesco Maria Russo Angelo Cioppa Maria Grazia Andreassi Eugenio Picano

Aims Invasive cardiologists are the most exposed to ionizing radiation among health professionals and show an increased rate of somatic DNA damage. To evaluate the effects of chronic low-dose exposure to ionizing radiation on redox state and apoptotic activation. Methods and results We enrolled 10 healthy exposed professionals (all interventional cardiologists, Group II, exposed: age = 38 ± 5 ...

2016
Wazir Muhammad Asad Ullah Khalid Mahmood Matiullah

The purpose of this study was to ensure accuracy in radiation dose delivery, external dosimetry quality audit has an equal importance with routine dosimetry performed at clinics. To do so, dosimetry quality audit was organized by the Secondary Standard Dosimetry Laboratory (SSDL) of Pakistan Institute of Nuclear Science and Technology (PINSTECH) at the national level to investigate and minimize...

Journal: :iranian journal of radiation research 0
a. solimanian radiation dosimetry and monitoring group agricultural, medical and industrial research school (amirs), nuclear science and technology research institute (nstri), atomic energy organization of iran (aeoi) - karaj, iran m. ghafoori radiation dosimetry and monitoring group agricultural, medical and industrial research school (amirs), nuclear science and technology research institute (nstri), atomic energy organization of iran (aeoi) - karaj, iran

background: absolute dosimetry of external beam radiotherapy is carried out by the use of ionization chambers. these chambers must be calibrated at a standard dosimetry laboratory before any use in clinical dosimetry. the secondary standard dosimetry laboratory of iran (ssdl) has the duty of calibrating the ionization chambers used in radiotherapy centers in iran. materials and methods: the pre...

2012
Eric Moult Clif Burdette Danny Y. Song Gabor Fichtinger Pascal Fallavollita

Motivation: In prostate brachytherapy, intra-operative dosimetry would be ideal to allow for rapid evaluation of the implant quality while the patient is still in the treatment position. Such a mechanism, however, requires 3-D visualization of the currently deposited seeds relative to the prostate. Thus, accurate, robust, and fully-automatic seed segmentation is of critical importance in achiev...

Journal: :iranian journal of radiation research 0
m. mirzaii m. mirzaii; nuclear research center for agriculture and medicine (nrcam) p.o.box: 31585-4395 karaj-iran fax : +98-261- 4411106, h. afarideh s.m. haji-saeid g.r. aslani m.r. ensaf

background: thermoluminescence dosimetry is one of the dosimetry procedures used widely as routine and personal dosimeters. in order to extend this kind of dosimeters, dental tissue has been examined and was found promising as a tld dosimeter. materials and methods : in this study, 70 health teeth were collected. the only criterion, which was considered for selection of the teeth, was the healt...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2013
Yuni K Dewaraja Michael Ljungberg Alan J Green Pat B Zanzonico Eric C Frey Wesley E Bolch A Bertrand Brill Mark Dunphy Darrell R Fisher Roger W Howell Ruby F Meredith George Sgouros Barry W Wessels

The reliability of radiation dose estimates in internal radionuclide therapy is directly related to the accuracy of activity estimates obtained at each imaging time point. The recently published MIRD pamphlet no. 23 provided a general overview of quantitative SPECT imaging for dosimetry. The present document is the first in a series of isotope-specific guidelines that will follow MIRD 23 and fo...

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Journal: :Journal of physics. Conference series 2009
H S Sakhalkar J Adamovics G Ibbott M Oldham

The potential of the PRESAGE™/Optical-CT system as a comprehensive 3D dosimetry tool has been demonstrated. The current study focused on detailed characterization of robustness (intra-dosimeter uniformity and temporal stability) and reproducibility (inter-dosimeter reproducibility) of PRESAGE™ inserts compatible with the RPC H&N phantom. In addition, the accuracy and precision of PRESAGE dose m...

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