Coronary Calcium Scores vs. Exercise Testing for Heart Risk
Author Information
Author(s): Geluk Christiane A, Dikkers Riksta, Kors Jan A, Tio René A, Slart Riemer HJA, Vliegenthart Rozemarijn, Hillege Hans L, Willems Tineke P, de Jong Paul E, van Gilst Wiek H, Oudkerk Matthijs, Zijlstra Felix
Primary Institution: University Medical Center Groningen, University of Groningen, The Netherlands
Hypothesis
Which test, coronary calcium scores or exercise testing, is better for diagnosing coronary artery disease in asymptomatic individuals with ST-T changes on an ECG?
Conclusion
Coronary calcium scores are a more effective initial test for identifying coronary artery disease in asymptomatic individuals at increased risk.
Supporting Evidence
- Calcium scores ≥400 showed a 69% presence of obstructive CAD.
- Exercise tests had a lower detection rate of obstructive CAD compared to calcium scores.
- Receiver operator characteristics analysis indicated calcium scores had a higher area under the curve than exercise testing.
Takeaway
Doctors can use a special scan to check for calcium in the heart arteries to see if someone might have heart problems, instead of just using a treadmill test.
Methodology
Asymptomatic subjects with ST-T changes on a resting ECG underwent coronary calcium scoring and exercise testing to evaluate the presence of coronary artery disease.
Limitations
Some patients were on medications that could affect exercise test results, and not all relevant data were collected.
Participant Demographics
Participants were asymptomatic adults, mean age 56, with a mix of genders and various cardiovascular risk factors.
Statistical Information
P-Value
0.004
Confidence Interval
95% CI 0.84–0.97
Statistical Significance
p = 0.004
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website