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Feasibility and preliminary diagnostic results of pixel-wise quantification of regadenoson first pass cardiac magnetic resonance perfusion imaging

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Perfusion Pixel-Maps in a patient with 85% LAD and RCA stenoses. A) stress perfusion image, B) pixel map generated using Epi/Endo ROIs, C) pixel map generated without ROI's. D), E) and F) are the rest images and perfusion maps.
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Figure 1: Perfusion Pixel-Maps in a patient with 85% LAD and RCA stenoses. A) stress perfusion image, B) pixel map generated using Epi/Endo ROIs, C) pixel map generated without ROI's. D), E) and F) are the rest images and perfusion maps.

Mentions: Significant coronary stenoses were present in 22 of 47 patients. The diagnostic accuracy of pixel-wise quantification of myocardial perfusion is summarized in Table 1. All of the pixel maps were of diagnostic quality (Figure 1). Interobserver agreement was excellent for ROI guided pixel maps (kappa 0.87). Agreement between readers for perfusion pixel-maps made without ROIs was kappa = 0.59. One reader tended towards higher sensitivity while the other reader favored specificity.


Feasibility and preliminary diagnostic results of pixel-wise quantification of regadenoson first pass cardiac magnetic resonance perfusion imaging
Perfusion Pixel-Maps in a patient with 85% LAD and RCA stenoses. A) stress perfusion image, B) pixel map generated using Epi/Endo ROIs, C) pixel map generated without ROI's. D), E) and F) are the rest images and perfusion maps.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4042605&req=5

Figure 1: Perfusion Pixel-Maps in a patient with 85% LAD and RCA stenoses. A) stress perfusion image, B) pixel map generated using Epi/Endo ROIs, C) pixel map generated without ROI's. D), E) and F) are the rest images and perfusion maps.
Mentions: Significant coronary stenoses were present in 22 of 47 patients. The diagnostic accuracy of pixel-wise quantification of myocardial perfusion is summarized in Table 1. All of the pixel maps were of diagnostic quality (Figure 1). Interobserver agreement was excellent for ROI guided pixel maps (kappa 0.87). Agreement between readers for perfusion pixel-maps made without ROIs was kappa = 0.59. One reader tended towards higher sensitivity while the other reader favored specificity.

View Article: PubMed Central - HTML

No MeSH data available.


Related in: MedlinePlus