Imaging Pearls ❯ Cardiac ❯ Protocol Questions
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- Contrast Selection for CCTA of Coronary Artery Stents
- is higher concentration of contrast better for stent opacification
- what is optimal for stent evaluation?
- is there a difference between iodixanol-320 and iomeprol-400? - Objective: We compared iomeprol-400 with iodixanol-320 to evaluate coronary stents with MDCT-CA
Conclusions: Iodixanol-320 provides better image quality of coronary stents, allowing higher MDCT-CA evaluability, than iomeprol-400
Coronary stent evaluation with coronary computed tomographic angiography: Comparison between low-osmolar, high iodine concentration iomeprol-400 and iso-osmolar, lower iodine concentration iodixanol-320
Andreini D et al.
J Cardiovasc Comput Tomogr 8(2014) 44-51 - “ Coronary artery calcification (CAC) is often not reported in pulmonary CT angiography studies. CAC is a significant predictor of acute coronary syndrome particularly in younger patients, patients without pulmonary thromboembolism, and those without cardiometabolic risk factors. Especially in these subgroups, radiologists should assess CAC findings.”
Coronary Artery Calcification Is Often Not Reported in Pulmonary CT Angiography in Patients with Suspected Pulmonary Embolism: An Opportunity to Improve Diagnosis of Acute Coronary Syndrome
Johnson C et al.
AJR 2014; 202:725-729 - “ Coronary artery calcification (CAC) was not reported in 45% of patients with positive CAC findings on imaging. Acute coronary syndrome was the final diagnosis in 31.6% of patients with unreported CAC.”
Coronary Artery Calcification Is Often Not Reported in Pulmonary CT Angiography in Patients with Suspected Pulmonary Embolism: An Opportunity to Improve Diagnosis of Acute Coronary Syndrome
Johnson C et al.
AJR 2014; 202:725-729