All have been CT with Angio. Issue is my nephrologist said these, the contrast, were the worst things for your kidneys. Are there any other options to see the circulatory system working anyone knows of?

CTAs or CT w Angiogram are the gold standards for testing for any issues within the vascular system... I have one as needed after doppler and ABI checks are done, if needed. Hope this helps. Echocardiogram is a doppler non invasive thar checks looks at the size and functioning of your heart and the aorta in and out. Hope this helps. Sorry for the delay. I now have Afib, a mildly dilated thoracic root and regurgitation minor in two of my hear valves, they say unknown why other than insofar not rheumatoid associated...whatever this means!