Imaging & Setup
Preferred average imaging phase for stable heart motion selection.
What is the 75% phase?
Artery centreline from ostium to R-PDA/L-PLB bifurcation.
What is the RCA?
Color overlay indicating calcified plaque.
What is yellow?
Duke score measures severity of this condition.
What is stenosis?
Metal streak artifacts often come from this device.
What are pacemaker wires or surgical clips?
Voxel size needed for accurate FAI analysis.
What is ≤ 1 mm?
Bright red overlay in viewer represents this structure.
What is the lumen?
Color overlay indicating soft (LD-NCP) plaque.
What is red?
State moderate plaque vessel diameter coverage range.
What is 50–69%?
Condition where the heart appears flipped on CT.
What is inverted heart? (2x bonus if dextrocardia is mentioned)
Form confirming patient risk factors before launching CaRiHeart.
What is the demographic and risk factor form?
Inclusion circles refine this analysis segment boundary.
What is the vessel wall boundary?
Number of markup regions for plaque across bifurcation of three vessels?
What is three?
FAI evaluates inflammation around this vessel layer.
What is the perivascular fat layer? (bonus points)
Parallel structures near LAD/LCx that mimic plaque.
What are veins?
Reconstruction type to avoid during plaque analysis due to unsuitable filter kernel.
What is 'AiCE' reconstruction?
First left arterial point should be placed here.
What is the ostium in the left main stem?
Tool for marking plaque regions in CPR view.
What is the vessel markup tool?
FAI can't be calculated when these patient data are missing.
What are patient risk factors?
Indicators along sternum identifying bypass grafts.
What are metallic stitches or clips?
Where should FOV be focused for optimal evaluation?
What is the Thorax/chest FOV? (bonus if cardiac FOV is mentioned)
Centreline deviation may occur near this structure.
What is a bifurcation or severe plaque region? (bonus if both are mentioned)
plaque in this location is excluded
What is regions of lumen diameter < 2 mm? (bonus if plaques at aortic ostium are mentioned)
Color representing fibrous tissue in overlays. (bonus points for HU range)
What is green (HU 65–260)?
One scanner issue indicating hardware mismatch.
What is unexpected slice spacing/ slice thickness/ number of slices? (3x bonus if all three are mentioned)