Coronary artery calcium score above 250 confirms the presence of significant stenosis in coronary CT angiography of symptomatic patients.
Coron Artery Dis
; 33(3): 189-195, 2022 05 01.
Article
in En
| MEDLINE
| ID: mdl-34148974
ABSTRACT
OBJECTIVES:
Evaluation of coronary artery calcium score (CACS) at multiple low and high cutoff values for the detection of significant coronary stenosis at two different cutoffs (50 and 70%) in a large number of symptomatic patients was not investigated previously in one study. This study aims to investigate if there are a correlation and statistical significance between different CACS cutoffs and the severity of coronary artery stenosis by coronary CT angiography (CCTA) in symptomatic patients.METHODS:
This is a retrospective study that included all symptomatic patients who had CCTA in a tertiary care hospital over a period of 7 years.RESULTS:
CCTA of 502 patients was evaluated (406 included, mean age 56.2 years); 230 were males (56.7%). The prevalence of stenosis at any percentage was 53.7%, ≥50% was 26.6% and ≥70% was 12.3%. The mean CACS was 84.5 (range 0-1860), for males was 124.5 and for females was 32.1. Patients with CACS of zero (59%) and CACS of ≥1 (41%) had a mean stenosis of 8.9% (range 0-75%) and 52.6% (range 0-100%), respectively. All patients with a CACS of ≥250 were found to have ≥50% stenosis (100% specificity and positive predictive value, 35.2% sensitivity, 81% negative predictive value and 82.6% accuracy). The percentage of stenosis increased as CACS increased with strong statistical significance (P value < 0.0001) and a positive correlation (r = 0.58).CONCLUSIONS:
CACS is a valuable diagnostic tool to predict the severity of coronary artery stenosis. A cutoff value of 250 confirmed the presence of at least 50% stenosis in symptomatic patients.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Coronary Artery Disease
/
Coronary Stenosis
Type of study:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Coron Artery Dis
Journal subject:
ANGIOLOGIA
/
CARDIOLOGIA
Year:
2022
Document type:
Article
Affiliation country:
Saudi Arabia