Ejection fraction derived using dye dilution and angiographic methods

French, William J.; Garner, Daniel; Hockett, Deanna; Laks, Michael M.

doi:10.1016/0002-8703(82)90648-2

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…Including the outflow tracts will increase the ventricular volumes. This will not affect SV (EDV-ESV) but may reduce EF (ESV divided by EDV) [31][32][33].…”

Section: Discussionmentioning

confidence: 99%

Cardiac MRI: Standardized Right and Left Ventricular Quantification by Briefly Coaching Inexperienced Personnel

Prakken¹,

Velthuis²,

Vonken³

et al. 2008

TOMRJ

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MRI quantification of the cardiac ventricles is time-consuming, especially for the right ventricle due to its complex geometry. Using a short axis MRI protocol, we tested if briefly coaching persons inexperienced in cardiac MRI provides reliable right and left ventricular quantification. 22 healthy subjects (mean age 26 ± 4.2 years) underwent short-axis breath-hold SSFP sequence cardiac MRI. Two persons inexperienced in cardiac MRI independently traced endocardial and epicardial contours of both ventricles with a predefined contour tracing protocol. Measurements were repeated after visual correction of each two most basal slices of the endocardial contours and epicardial contours in the learning curve. Five random short-axis cines were retraced for intraobserver variability. Measurements were performed blinded within 4 months. Agreement was assessed with the Bland-Altman method. No systematic bias was observed and measurements were within acceptable limits of agreement after brief coaching. Repeat measurements following visual correction significantly improved inter-observer differences, especially for mass calculations. Maximum interobserver and intraobserver disagreement of the final protocol were respectively 8% and 5%. Brief coaching of persons inexperienced in cardiac MRI, using the short axis MRI protocol, provides reliable volume, function and mass quantification of both ventricles.

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“…Including the outflow tracts will increase the ventricular volumes. This will not affect SV (EDV-ESV) but may reduce EF (ESV divided by EDV) [31][32][33].…”

Section: Discussionmentioning

confidence: 99%