Left ventricular ejection fraction determined with the simulation of a very low-dose CZT-SPECT protocol and an additional count-calibration on planar radionuclide angiographic data

Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
Hubert TissotLaetitia Imbert

Abstract

To determine whether the left ventricular ejection fractions (EFs), measured on a high-sensitivity CZT single photon emission computed tomography (SPECT)-camera with a 70% reduction in recording times and a prevention of EF overestimation through an additional count-calibration, are concordant with reference EF from planar radionuclide angiography (2D-RNA). An additional 10-minute CZT-SPECT recording was performed in patients referred to 2D-RNA for cardiomyopathy (n = 23) or chemotherapy monitoring (n = 50) with an in vivo red blood cell labeling with 850 MBq [Formula: see text]. The EF, obtained from CZT-SPECT with 100% (SPECT100) or 30% (SPECT30) projection times and with a SPECT-count calibration on the 2D-RNA counts of corresponding cavity volumes, were compared to EF from 2D-RNA. Strong and equivalent relationships were documented between the EF from 2D-RNA and the calibrated EF from SPECT100 (y = 0.89x + 6.62; R2 = 0.87) and SPECT30 (y = 0.87x + 8.40; R2 = 0.85), and the mean EF from SPECT100 (54% ± 15%) and SPECT30 (53% ± 16%) were close to that from 2D-RNA (55% ± 15%). However, upward shifts in these mean values were documented in the absence of count calibration for both SPECT100 (60% ± 18%) and SPECT30 (60% ± 18%). Le...Continue Reading

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Citations

Feb 21, 2019·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Pierre-Yves Marie, Laetitia Imbert
Sep 5, 2019·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Guillermo Romero-Farina, Santiago Aguadé-Bruix
Aug 31, 2019·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Laetitia Imbert, Pierre-Yves Marie
May 15, 2021·Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology·Antoine ApertGilles Barone-Rochette

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