D dimer 0.93, found 4.5 taaw/ct angio/w/contrast, echo, mildthickening of left ventricle&atrium, slight regurgitation of all heart valves.mean?

Need more info: Making a diagnosis is more than looking at numbers. It takes physical exam and knowing the medical history. The best person to give you the answer you seek is the cardiologist.

Depends: You certainly have heart and vascular disease. The question is whether you are having symptoms or not. Symptoms may need treatment. Most times risk factors can be addressed and these findings followed. If there is progression then treatment can be instituted. Make sure you see an appropriate specialist.