but they have whats called a stress test. Put iodine in your blood take some pictures then put you on a treadmill then take more pictures. Cholesterol high low or indifferent doesnt mean much, if its sticking to artery walls it means a lot. Cheaper option is the vans that come around and offer neck chest and leg imagery looking for clots. Its less resolution but my doc suggested its a good idea at $159 to get them done and have her look at them.