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Document type:
Journal Article 
Author(s):
Karimi Ghodoosi, Elham; D'Alessandria, Calogero; Li, Ye; Bartel, Alexandra; Köhner, Markus; Höllriegl, Vera; Navab, Nassir; Eiber, Matthias; Li, Wei Bo; Frey, Eric; Ziegler, Sibylle 
Title:
The effect of attenuation map, scatter energy window width, and volume of interest on the calibration factor calculation in quantitative 177Lu SPECT imaging: Simulation and phantom study. 
Abstract:
PURPOSE: The objective of this study was to evaluate the image degrading factors in quantitative 177Lu SPECT imaging when using both main gamma photopeak energies. METHODS: Phantom measurements with two different vials containing various calibrated activities in air or water were performed to derive a mean calibration factor (CF) for large and small volumes of interest (VOIs). In addition, Monte Carlo simulations were utilized to investigate the effect of scatter energy window width, scatter cor...    »
 
Journal title abbreviation:
Phys Med 
Year:
2018 
Journal volume:
56 
Pages contribution:
74-80 
Print-ISSN:
1120-1797 
TUM Institution:
Klinik und Poliklinik für Nuklearmedizin