Table 2.

Definition of CAD severity and software used for TID calculation

Study	Definition of severe and extensive CAD	Software used for TID calculation
Xu et al28	≥70% LM or proximal LAD or ≥90% of ≥2 coronary vessels	Cedars Sinai QPS and QGS software
Kinoshita et al29	≥75% reduction of luminal diameter of ≥2 coronary vessels	GMS-550 A Toshiba workstation Formula used for calculation (Mean A EX/Mean A rest)
Petretta et al30	≥70% proximal LAD or ≥90% of ≥2 coronary vessels	Cedars Sinai software
Weis et al1	≥90% of ≥2 coronary vessels	Manual calculation form the anterior view planar images
Chouraqui et al6	≥90% of 3 coronary vessels	Manual calculation form the anterior view planar images
Emmett et al31	≥90% of LAD or ≥90% of ≥2 coronary vessels	Emory Cardiac toolbox
Fallahi et al18	Coronary artery index Gensini score used	Cedars Sinai Auto Quant software package
Emmett et al32	≥90% of LAD or ≥90% of ≥2 coronary vessels	Emory Cardiac toolbox
Marcassa et al5	>50% diameter stenosis in major pericardial vessel modified Gensini score	Not specified
Rischpler et al27	Obstructive CAD (Cath/CTA) severity not specified	Card IQ Physio (GE healthcare)
Mazzanti et al33	≥90% of proximal LAD or ≥90% of ≥2 coronary vessels	Cedars Sinai QPS and QGS software
Abidov et al34	≥90% of proximal LAD or ≥90% ≥2 vessel disease	Cedars Sinai QPS software
Golzar et al12	≥70% LM or proximal LAD or ≥90% of ≥2 coronary vessels	4DM-SPECT version 5.1

CAD, coronary artery disease; TID, transient ischemic dilation; LM, left main; LAD, left anterior descending; Cath, cardiac catheterization; CTA, CT angiography