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Pregled bibliografske jedinice broj: 730763

ACTIVITY QUANTIFICATION OF 133Ba SOURCES IN WATER PHANTOM


Grošev, Darko; Lončarić, Srećko; Huić, Dražen; Medvedec, Mario
ACTIVITY QUANTIFICATION OF 133Ba SOURCES IN WATER PHANTOM // Nuklearmedizin
Šibenik, Hrvatska, 2014. str. A 136-A 136 (predavanje, međunarodna recenzija, sažetak, ostalo)


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Naslov
ACTIVITY QUANTIFICATION OF 133Ba SOURCES IN WATER PHANTOM

Autori
Grošev, Darko ; Lončarić, Srećko ; Huić, Dražen ; Medvedec, Mario

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Nuklearmedizin / - , 2014, A 136-A 136

Skup
The Eighth International Congress of the Croatian Society of Nuclear Medicine

Mjesto i datum
Šibenik, Hrvatska, Svibanj, 09-12, 2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
nuclear medicine procedures; dosimetric studies

Sažetak
Quantitative information about spatial and temporal distribution of radioisotope in nuclear medicine procedures is important for dosimetric studies. 133Ba is suitable isotope (E=356 keV, T1/2=10.5 y) for simulation of 131I (E=364 keV, T1/2=8 d) imaging in radioiodine and radionuclide therapy. We imaged 4 cylindrical 133Ba sources in a cylindrical water phantom. Activity of each source was < 1.5 MBq. The sources were produced at the National Institute of Standards and Technology (NIST, USA). Planar and SPECT measurements were done on a dual head gamma camera. Triple-energy window (TEW) acquisition was performed for scatter correction. In planar measurements, transmission flood source (57Co) was used for attenuation correction (AC). In SPECT imaging, CT-based AC was applied. From measurements in air of calibration source the sensitivity factor was obtained in cps/MBq. Three consecutive acquisitions were performed in order to evaluate the reproducibility of the measurements. The results of activity measurements for the calibration source, A0=0.91 MBq, showed that Aplanar= 0.730.03 MBq ; ASPECT=0.920.01 MBq. SPECT measurements with CT-based AC produced result accurate within 2%, while planar measurements underestimated activity by 20%. Therefore SPECT/CT imaging should be used for accurate dosimetry. Acknowledgement: This work is a part of the collaboration with the International Atomic Energy Agency (IAEA, Vienna) under the Coordinated Research Project E2.10.07.

Izvorni jezik
Engleski



POVEZANOST RADA


Profili:

Avatar Url Darko Grošev (autor)

Avatar Url Mario Medvedec (autor)

Avatar Url Dražen Huić (autor)


Citiraj ovu publikaciju:

Grošev, Darko; Lončarić, Srećko; Huić, Dražen; Medvedec, Mario
ACTIVITY QUANTIFICATION OF 133Ba SOURCES IN WATER PHANTOM // Nuklearmedizin
Šibenik, Hrvatska, 2014. str. A 136-A 136 (predavanje, međunarodna recenzija, sažetak, ostalo)
Grošev, D., Lončarić, S., Huić, D. & Medvedec, M. (2014) ACTIVITY QUANTIFICATION OF 133Ba SOURCES IN WATER PHANTOM. U: Nuklearmedizin.
@article{article, year = {2014}, pages = {A 136-A 136}, keywords = {nuclear medicine procedures, dosimetric studies}, title = {ACTIVITY QUANTIFICATION OF 133Ba SOURCES IN WATER PHANTOM}, keyword = {nuclear medicine procedures, dosimetric studies}, publisherplace = {\v{S}ibenik, Hrvatska} }
@article{article, year = {2014}, pages = {A 136-A 136}, keywords = {nuclear medicine procedures, dosimetric studies}, title = {ACTIVITY QUANTIFICATION OF 133Ba SOURCES IN WATER PHANTOM}, keyword = {nuclear medicine procedures, dosimetric studies}, publisherplace = {\v{S}ibenik, Hrvatska} }




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