COMPARISON OF PERFORMANCE CHARACTERISTICS OF GAMMA CAMERAS WITH SCINTILLATION NaI(TI) AND SEMICONDUCTOR CdZnTe DETECTORS
Objective: In recent years, gamma cameras with semiconductor detectors (CdZnTe) have entered routine practise diagnostic scintigraphic imaging in nuclear medicine. In this study, we aimed to compare the performance characteristics of a gamma camera with a semiconductor detector (CdZnTe) and a conven...
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Istanbul University Press
2024-10-01
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| author | Armağan Aydın Füsun Çetin Mustafa Demir |
| author_facet | Armağan Aydın Füsun Çetin Mustafa Demir |
| author_sort | Armağan Aydın |
| collection | DOAJ |
| description | Objective: In recent years, gamma cameras with semiconductor detectors (CdZnTe) have entered routine practise diagnostic scintigraphic imaging in nuclear medicine. In this study, we aimed to compare the performance characteristics of a gamma camera with a semiconductor detector (CdZnTe) and a conventional gamma camera with a NaI(Tl) detector. Material and Methods: In our experimental studies, spatial resolution, energy resolution, and linearity tests were performed using 3 capillary tubes of the same length and thickness, into which the Tc-99m radioisotope with different activities was placed. Sensitivity tests were performed by placing Tc-99m in a plastic Petri dish with a diameter of 3 cm. Scintigraphic images of the capillary tubes and the Petri dish were taken with both gamma cameras under equal geometric conditions. Regions of interest (ROI) were drawn on the images. The activity amount corresponding to the counts in the ROI was determined. Results: The spatial resolution, energy resolution, and sensitivity values of the gamma camera with the CdZnTe detector and the gamma camera with NaI(Tl) detector are respectively: 7.16 mm, 5.1% and 17.5 cps/µCi for CdZnTe, and 13.2 mm, 9.4% and 3.9 cps/µCi for NaI(Tl) µCi respectively. Conclusion: According to the results of our study, it was concluded that the energy resolution, spatial resolution, sensitivity, and linearity properties of the gamma camera with the semiconductor CdZnTe detector are superior to those of the gamma camera with the NaI(Tl) detector. |
| format | Article |
| id | doaj-art-4e876e9334db4900a911fc1d44209a38 |
| institution | OA Journals |
| issn | 2651-4060 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Istanbul University Press |
| record_format | Article |
| series | Sabiad |
| spelling | doaj-art-4e876e9334db4900a911fc1d44209a382025-08-20T02:14:06ZengIstanbul University PressSabiad2651-40602024-10-017317417910.26650/JARHS2024-1424470123456COMPARISON OF PERFORMANCE CHARACTERISTICS OF GAMMA CAMERAS WITH SCINTILLATION NaI(TI) AND SEMICONDUCTOR CdZnTe DETECTORSArmağan Aydın0https://orcid.org/0000-0002-9126-8381Füsun Çetin1https://orcid.org/0000-0001-9135-2615Mustafa Demir2https://orcid.org/0000-0002-9813-1628İstanbul Üniversitesi-Cerrahpaşa, Istanbul, Turkiyeİstanbul Aydın Üniversitesi, Istanbul, Turkiyeİstanbul Üniversitesi-Cerrahpaşa, Istanbul, TurkiyeObjective: In recent years, gamma cameras with semiconductor detectors (CdZnTe) have entered routine practise diagnostic scintigraphic imaging in nuclear medicine. In this study, we aimed to compare the performance characteristics of a gamma camera with a semiconductor detector (CdZnTe) and a conventional gamma camera with a NaI(Tl) detector. Material and Methods: In our experimental studies, spatial resolution, energy resolution, and linearity tests were performed using 3 capillary tubes of the same length and thickness, into which the Tc-99m radioisotope with different activities was placed. Sensitivity tests were performed by placing Tc-99m in a plastic Petri dish with a diameter of 3 cm. Scintigraphic images of the capillary tubes and the Petri dish were taken with both gamma cameras under equal geometric conditions. Regions of interest (ROI) were drawn on the images. The activity amount corresponding to the counts in the ROI was determined. Results: The spatial resolution, energy resolution, and sensitivity values of the gamma camera with the CdZnTe detector and the gamma camera with NaI(Tl) detector are respectively: 7.16 mm, 5.1% and 17.5 cps/µCi for CdZnTe, and 13.2 mm, 9.4% and 3.9 cps/µCi for NaI(Tl) µCi respectively. Conclusion: According to the results of our study, it was concluded that the energy resolution, spatial resolution, sensitivity, and linearity properties of the gamma camera with the semiconductor CdZnTe detector are superior to those of the gamma camera with the NaI(Tl) detector.https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/D434635A432B401D813C17A71915E80Dgamma camerasemiconductor detectorcdznteenergy resolutionspatial resolution |
| spellingShingle | Armağan Aydın Füsun Çetin Mustafa Demir COMPARISON OF PERFORMANCE CHARACTERISTICS OF GAMMA CAMERAS WITH SCINTILLATION NaI(TI) AND SEMICONDUCTOR CdZnTe DETECTORS Sabiad gamma camera semiconductor detector cdznte energy resolution spatial resolution |
| title | COMPARISON OF PERFORMANCE CHARACTERISTICS OF GAMMA CAMERAS WITH SCINTILLATION NaI(TI) AND SEMICONDUCTOR CdZnTe DETECTORS |
| title_full | COMPARISON OF PERFORMANCE CHARACTERISTICS OF GAMMA CAMERAS WITH SCINTILLATION NaI(TI) AND SEMICONDUCTOR CdZnTe DETECTORS |
| title_fullStr | COMPARISON OF PERFORMANCE CHARACTERISTICS OF GAMMA CAMERAS WITH SCINTILLATION NaI(TI) AND SEMICONDUCTOR CdZnTe DETECTORS |
| title_full_unstemmed | COMPARISON OF PERFORMANCE CHARACTERISTICS OF GAMMA CAMERAS WITH SCINTILLATION NaI(TI) AND SEMICONDUCTOR CdZnTe DETECTORS |
| title_short | COMPARISON OF PERFORMANCE CHARACTERISTICS OF GAMMA CAMERAS WITH SCINTILLATION NaI(TI) AND SEMICONDUCTOR CdZnTe DETECTORS |
| title_sort | comparison of performance characteristics of gamma cameras with scintillation nai ti and semiconductor cdznte detectors |
| topic | gamma camera semiconductor detector cdznte energy resolution spatial resolution |
| url | https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/D434635A432B401D813C17A71915E80D |
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