Comparison of the imaging performances for recently developed monolithic scintillators: CRY018 and CRY019 for dual isotope gamma ray imaging applications

Polito, C.; Pani, R.; Trigila, Carlotta; Cinti, M.N.; Fabbri, Andrea; Frantellizzi, Viviana; Vincentis, Giuseppe De; Pellegrini, R.

doi:10.1088/1748-0221/12/01/c01055

Cited by 5 publications

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“…Using a power α = 3 the position linearity is fully recovered for both CRY018 and CRY019 crystals. The intrinsic spatial resolutions (iSR), previously discussed in [7], have been summarized in table 4(a)-5(a) and table 4(b)-5(b) for CRY018 and CRY019 respectively. In this work a comparison of the CRY018 and CRY019 total spatial resolution (tSR) and iSR values at different gamma emission energies as a function of the attenuation length has been proposed.…”

Section: Resultsmentioning

confidence: 99%

“…In recent papers [6][7][8], our research interests have been focused on studying the advantages of these recently released scintillators. The main difference among these two crystals is the presence of lutetium-176 in CRY019 crystal.…”

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confidence: 99%

“…Our research and studies have continued about advantages and disadvantages of these new crystals and also regarding the best application of them in diagnostic imaging. Looking at the new applications in nuclear imaging, the fast decay time makes these crystals ideal candidates for small size detectors, allowing the coupling with different photomultipliers [7].…”

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confidence: 99%

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Imaging performance dependence on crystal absorption properties: the CRY018 and CRY019 comparison

et al. 2020

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A proper choice of the scintillation crystal can considerably improve the detector performance in nuclear medicine imaging. In this study two promising crystals, CRY018 and CRY019, are characterized in terms of spectrometric and imaging capabilities. Thanks to the same irradiation conditions, it has been possible to compare their performance for a wide range of energies (30 keV to 662 keV). They have high energy resolution (6.5% and 7.6% at 662 keV for CRY018 and CRY019, respectively), negligible light yield non-proportionality, good position linearity, and intrinsic spatial resolution less than 2 mm. In particular, the performance deviations could be explained from the different attenuation length (CRY018 depth of interaction is higher than CRY019 one, due to their different density). K: Gamma camera, SPECT, PET PET/CT, coronary CT angiography (CTA); Scintigraphy and whole-body imaging; Gamma detectors (scintillators, CZT, HPGe, HgI etc); Scintillators and scintillating fibres and light guides 1Corresponding author.

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Section: Resultsmentioning

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Imaging performance dependence on crystal absorption properties: the CRY018 and CRY019 comparison

et al. 2020

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“…As described by Pani et al [2], CRY019 has the best energy resolutions among all the other lutetium based scintillation crystals and a very good intrinsic detection efficiency in the SPECT energy range. Moreover, another work highlights how the great energy resolution performances make this scintillator suitable for Nuclear Medicine applications, like the dual isotope imaging allowing the discrimination of emission peaks with close energy and so the discrimination of the imaging information coming from two sources separately [6].…”

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Imaging characterization of a new gamma ray detector based on CRY019 scintillation crystal for PET and SPECT applications

et al. 2017

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In the last 40 years, in the field of Molecular Medicine imaging there has been a huge growth in the employment and in the improvement of detectors for PET and SPECT applications in order to reach accurate diagnosis of the diseases. The most important feature required to these detectors is an high quality of images that is usually obtained benefitting from the development of a wide number of new scintillation crystals with high imaging performances. In this contest, features like high detection efficiency, short decay time, great spectral match with photodetectors, absence of afterglow and low costs are surely attractive. However, there are other factors playing an important role in the realization of high quality images such as energy and spatial resolutions, position linearity and contrast resolution. With the aim to realize an high performace gamma ray detector for PET and SPECT applications, this work is focused on the evaluation of the imaging characteristics of a recently developed scintillation crystal, CRY019. K: Gamma camera, SPECT, PET PET/CT, coronary CT angiography (CTA); Medicalimage reconstruction methods and algorithms, computer-aided software 1Corresponding author.

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Imaging performances of a small FoV gamma camera based on CRY018 scintillation crystal

Polito

Pani

Frantellizzi

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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Comparison of the imaging performances for recently developed monolithic scintillators: CRY018 and CRY019 for dual isotope gamma ray imaging applications

Abstract: Comparison of the imaging performances for recently developed monolithic scintillators: CRY018 and CRY019 for dual isotope gamma ray imaging applications View the table of contents for this issue, or go to the journal homepage for more 2017 JINST 12 C01055

Cited by 5 publications

References 11 publications

Imaging performance dependence on crystal absorption properties: the CRY018 and CRY019 comparison

Imaging performance dependence on crystal absorption properties: the CRY018 and CRY019 comparison

Imaging characterization of a new gamma ray detector based on CRY019 scintillation crystal for PET and SPECT applications

Imaging performances of a small FoV gamma camera based on CRY018 scintillation crystal

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