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OSEM reconstruction, associated with temporal Fourier and depth-dependant resolution recovery filtering, enhances results from Sestamibi and 201Tl 16-interval gated SPECT

(2005) JOURNAL OF NUCLEAR MEDICINE. 46(11). p.1789-1795
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Abstract
Gated SPECT recorded with 16 intervals determines left ventricular (LV) ejection fraction more accurately than does gated SPECT recorded with 8 intervals but produces higher image noise. This study aimed to assess the results from sestamibi and (TI)-T-201 16-interval gated SPECT when both signal-to-noise ratio and spatial resolution were enhanced with an original method of reconstruction. Methods: Forty patients with coronary artery disease underwent (TI)-T-201 and sestamibi 16-interval gated SPECT and, to be used as a reference, cardiac MRI. Assessments of global and regional LV function provided by ordered-subsets expectation maximization (OSEM) with depth-dependant resolution recovery and temporal Fourier filtering were compared with those from conventional filtered backprojection (FBP) previously optimized by screening various filter frequencies and various temporal smoothing levels. Results: For both tracers, LV ejection fraction was determined best when the association of OSEM with depth-dependant resolution recovery was used alone, with temporal Fourier filtering, or with a slight 2-frame temporal smoothing: Mean absolute values of relative errors ranged from 3.2% to 3.6% (4.0%-7.9% for FBP), and coefficient correlation ranged from 0.91 to 0.93 (0.70-0.91 for FBP). Among these 3 reconstruction methods, the association of OSEM with depth-dependant resolution recovery with temporal Fourier filtering provided the highest signal-to-noise ratio, with mean increases of 54% for sestamibi and 80% for (TI)-T-201 when compared with FBP, and the best analysis of segmental contractility, with exact agreement rates with MRI being 73% for (TI)-T-201 and 79% for sestamibi. Conclusion: OSEM associated with temporal Fourier filtering and depth-dependant resolution recovery filtering enhances the LV function assessment provided by sestamibi and (TI)-T-201 16-interval gated SPECT and dramatically reduces image noise, a property that enhances and facilitates image interpretation.

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Citation

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Chicago
Marie, Pierre-Yves, Wassila Djaballah, Philippe R Franken, Christian Vanhove, Marc A Muller, Henri Boutley, Sylvain Poussier, Pierre Olivier, Gilles Karcher, and Alain Bertrand. 2005. “OSEM Reconstruction, Associated with Temporal Fourier and Depth-dependant Resolution Recovery Filtering, Enhances Results from Sestamibi and 201Tl 16-interval Gated SPECT.” Journal of Nuclear Medicine 46 (11): 1789–1795.
APA
Marie, P.-Y., Djaballah, W., Franken, P. R., Vanhove, C., Muller, M. A., Boutley, H., Poussier, S., et al. (2005). OSEM reconstruction, associated with temporal Fourier and depth-dependant resolution recovery filtering, enhances results from Sestamibi and 201Tl 16-interval gated SPECT. JOURNAL OF NUCLEAR MEDICINE, 46(11), 1789–1795.
Vancouver
1.
Marie P-Y, Djaballah W, Franken PR, Vanhove C, Muller MA, Boutley H, et al. OSEM reconstruction, associated with temporal Fourier and depth-dependant resolution recovery filtering, enhances results from Sestamibi and 201Tl 16-interval gated SPECT. JOURNAL OF NUCLEAR MEDICINE. 2005;46(11):1789–95.
MLA
Marie, Pierre-Yves, Wassila Djaballah, Philippe R Franken, et al. “OSEM Reconstruction, Associated with Temporal Fourier and Depth-dependant Resolution Recovery Filtering, Enhances Results from Sestamibi and 201Tl 16-interval Gated SPECT.” JOURNAL OF NUCLEAR MEDICINE 46.11 (2005): 1789–1795. Print.
@article{2916082,
  abstract     = {Gated SPECT recorded with 16 intervals determines left ventricular (LV) ejection fraction more accurately than does gated SPECT recorded with 8 intervals but produces higher image noise. This study aimed to assess the results from sestamibi and (TI)-T-201 16-interval gated SPECT when both signal-to-noise ratio and spatial resolution were enhanced with an original method of reconstruction. Methods: Forty patients with coronary artery disease underwent (TI)-T-201 and sestamibi 16-interval gated SPECT and, to be used as a reference, cardiac MRI. Assessments of global and regional LV function provided by ordered-subsets expectation maximization (OSEM) with depth-dependant resolution recovery and temporal Fourier filtering were compared with those from conventional filtered backprojection (FBP) previously optimized by screening various filter frequencies and various temporal smoothing levels. Results: For both tracers, LV ejection fraction was determined best when the association of OSEM with depth-dependant resolution recovery was used alone, with temporal Fourier filtering, or with a slight 2-frame temporal smoothing: Mean absolute values of relative errors ranged from 3.2% to 3.6% (4.0%-7.9% for FBP), and coefficient correlation ranged from 0.91 to 0.93 (0.70-0.91 for FBP). Among these 3 reconstruction methods, the association of OSEM with depth-dependant resolution recovery with temporal Fourier filtering provided the highest signal-to-noise ratio, with mean increases of 54% for sestamibi and 80% for (TI)-T-201 when compared with FBP, and the best analysis of segmental contractility, with exact agreement rates with MRI being 73% for (TI)-T-201 and 79% for sestamibi. Conclusion: OSEM associated with temporal Fourier filtering and depth-dependant resolution recovery filtering enhances the LV function assessment provided by sestamibi and (TI)-T-201 16-interval gated SPECT and dramatically reduces image noise, a property that enhances and facilitates image interpretation.},
  author       = {Marie, Pierre-Yves and Djaballah, Wassila and Franken, Philippe R and Vanhove, Christian and Muller, Marc A and Boutley, Henri and Poussier, Sylvain and Olivier, Pierre and Karcher, Gilles and Bertrand, Alain},
  issn         = {0161-5505},
  journal      = {JOURNAL OF NUCLEAR MEDICINE},
  language     = {eng},
  number       = {11},
  pages        = {1789--1795},
  title        = {OSEM reconstruction, associated with temporal Fourier and depth-dependant resolution recovery filtering, enhances results from Sestamibi and 201Tl 16-interval gated SPECT},
  url          = {http://jnm.snmjournals.org/content/46/11/1789.abstract},
  volume       = {46},
  year         = {2005},
}

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