Are there any non-invasive ways to check for levels of atherosclerosis in the arteries?

Yes: Noninvasive ultrasound tests can determine the extent and severity of peripheral artery disease be a number of different techniques. However, this is poorly correlated with long-term outcomes, and many companies are making a fortune charging people for this unnecessary and poorly predictive test. The best strategy is to test specific arteries based on a patient's specific symptoms.

Yes: Non-invasive imaging options include coronary calcium score (ccs) and carotid ultrasound for intima-media thickness (cimt). Ccs quantifies calcium in mature artery plaques. Cimt measures earlier changes of vascular disease (cimt thickness and small plaques without calcium). Cimt requires a skilled sonographer for optimal clinical value. Ccs defines later stage disease, but is more reproducible.