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Wyszukujesz frazę "Yasar, D." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Assessment of patient dose by positron emission tomography (PET) and medical internal dose (MIRD) methods
Autorzy:
Yilmaz, G.
Tugrul, A.
Demir, M.
Yasar, D.
Demir, B.
Powiązania:
https://bibliotekanauki.pl/articles/1068158.pdf
Data publikacji:
2016-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.57.uk
87.53.Bn
Opis:
Dynamic experiments cannot be observed easy on patients for determination of dosimetry in human PET studies dosimeter studies. In this study, it is aimed to estimate dose amount absorbed by some critical organs (e.g. bladder, lung, thyroid and ovary) by using a developed phantom. The phantom was improved as an original anthropomorphic whole body phantom which has been arranged with dynamic system. Therefore, organ absorbed doses by applying of fluorine-18-fluorodeoxyglucose in PET studies and was observed by using the phantom, while TLD dosimeters were used for determination of internal absorbed doses. In medical physics, the accuracy of absorbed dose resulting from radiopharmaceutical application was determined by the medical internal radiation dose method that depends theoretically on the cumulated activity of the source organs and their mass. The MIRD calculation was also used for the study and comparatively evaluated with the experimental results which were collected by using improved phantom.
Źródło:
Acta Physica Polonica A; 2016, 130, 1; 90-92
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radiation doses to technologists working with 18F-FDG in a PET center with high patient capacity
Autorzy:
Demir, M.
Demir, B.
Yaşar, D.
Sayman, H. B.
Halac, M.
Ahmed, A. S.
Özcan, K.
Uslu, I.
Powiązania:
https://bibliotekanauki.pl/articles/148501.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
whole-body dose
finger doses
personnel dosimetry
18F-FDG
PET-CT
Opis:
The increasing numbers of PET studies for routine diagnosis creates a real hazard to radiation workers. The aim of this study is to estimate the annual whole-body and finger radiation dose to technologists working with 18F-FDG in a PET center with high patient potential. In our PET center, the number of PET imaging has increased almost to 5000 studies per year. Our standard dose for tumor imaging is 518 MBq of 18F-FDG. Five technologists performing all steps of 18F-FDG imaging (5 patients per technologist in a day) were officially involved round the week for handling and injecting 18F-FDG to patients. Whole-body and finger dose measurements with TLDs were performed for two different time periods: i) before shielding precautions during the first 6 months (without a shielding for sterile syringe and without a lead container for shielded syringe) and ii) after shielding precautions during the next 6 months (with a shielding for sterile syringe and with a lead container for shielded syringe). The average annual whole-body radiation dose for one technologist before shielding precautions was 7.82 mSv and after shielding precautions was 5.76 mSv. On the other hand, while the average annual finger radiation doses for one technologist before shielding precautions were 210.36 and 293.72 mSv for the left and right hand, after shielding precautions were they 158.16 and 217.58 mSv for the left and right hand, respectively. According to our results, if one technologist performs the whole-body PET imaging of 5 patients per day, the annual radiation dose to this technologist will not exceed the recommended limits by ICRP.
Źródło:
Nukleonika; 2010, 55, 1; 107-112
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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