1. In vivo validation of cardiac spiral computed tomography using retrospective gating 
Jörg Albers, MD, Jan M Boese, PhD, Christian F Vahl, MD, Siegfried Hagl, MD 
The Annals of Thoracic Surgery 
Volume 75, Issue 3, Pages (March 2003)
DOI: /S (02)

2. Fig 1
Reduction of motion artifacts by retrospective gating. End-diastolic (upper row) and end-systolic frames (bottom row) are depicted both without gating (left) and using retrospective gating (right). Images were acquired from the same animal.
The Annals of Thoracic Surgery  , DOI: ( /S (02) )

3. Fig 2
Three-dimensional reconstruction of functional computed tomography (CT) image data. Postprocessing of CT image data using ray-tracing resulted in illustrative views of end-diastolic (left) and end-systolic (right) rotating cardiac volumes (red). This may be advantageous for future diagnostic routine (frame taken from three-dimensional movie).
The Annals of Thoracic Surgery  , DOI: ( /S (02) )

4. Fig 3
Accuracy and clinical value of computed tomography (CT) method. (Left) Values of stroke volume (SV) calculated from CT method (SV-CT, ordinate) showed good correlation with SV taken from the gold standard (SV-flowmeter, abscissa). r = ; y = 1.024x Linear approximation is indicated by the solid line; 97.5% confidence intervals are delineated with +. (Right) Bland-Altman plot of SV derived by the two methods. Mean difference = −1.75 mL; SD = mL. Dotted lines represent the two times standard deviation distance from the mean difference.
The Annals of Thoracic Surgery  , DOI: ( /S (02) )