McCubrey et al reported scores for major adverse cardiac events based on findings including cardiac positron emission (PET)/CT scan results. There was a risk score for 90-day and 1-year outcomes. The authors are from Intermountain Healthcare, Stanford University, and the University of Utah.
Outcome: major adverse cardiac events (MACE) or revascularization)
Parameters:
(1) ischemic burden
(2) coronary artery calcium (CAC)
(3) coronary flow reserve
(4) transient ischemic dilation
(5) patient status
Parameter
Finding
Points
ischemic burden
< 5
0
5 to 10
4
> 10
6
coronary artery calcium
absent
0
present
3
coronary flow reserve
< 1.5
1
>= 1.5
0
transient ischemic dilation
<= 1.1
0
> 1.1
1
patient status
outpatient
0
inpatient
1
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 12
Total Score
Risk Category
0 to 3
low
4 to 7
moderate
8 to 12
high
Performance:
• The area under the ROC for MACE was 0.85.
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