Key result
Multisegmental image reconstruction cuts EF measurement deviation by ~50% versus monosegmental imaging via improved temporal resolution.
Why the study?
Does multisegmental image reconstruction with enhanced temporal resolution improve the quantification of LV volumes in cardiac multislice spiral CT compared to monosegmental reconstruction at varying heart rates?
Population
Dynamic cardiac phantom scanned with a 64-slice CT scanner at simulated heart rates ranging from 40 to 140…
Comparison
Multisegmental image reconstruction utilizing… vs Monosegmental image reconstruction
Design
Preclinical
Authors
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May improve LV EF accuracy in cardiac CT at higher rates; hypothesis-generating in animals and leaves open human translation.
Does multisegmental image reconstruction with enhanced temporal resolution improve the quantification of LV volumes in cardiac multislice spiral CT compared to monosegmental reconstruction at varying heart rates?
Enhanced temporal resolution using multisegmental image reconstruction improves the quantification of LV volumes in cardiac multislice spiral CT, enabling reliable assessment even at increased heart rates.
Mahnken et al. (2006) studied this question. Multisegmental image reconstruction vs. Monosegmental image reconstruction was evaluated on Percent deviation between measured and real values for ejection fraction. Multisegmental image reconstruction improved temporal resolution and reduced the percent deviation between measured and real ejection fraction from 8.2% (monosegmental) to 3.3-4.5%.
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