Besides echocardiogram, can a cardiac ct angiogram also diagnose CHF? I had an echocardiogram done 2 weeks ago, but didn't get my results yet, but will Monday as well as my holter test. My cardiologist reluctantly did the echo and holter. I'm fatigued and short of breath all the time, except when I'm sleeping. My hr dropped to 61 walking to my kitchen and my o2 sat dropped to 93 for a brief second. But trying to get a few things from the store I was extremely fatigued but my hr was 115... barely walking. I'm only 150 pounds, and used to be so active. This has affected my career as I haven't been able to work. I'm only 45 :( I'm worried this is CHF. I have great blood pressure. Thanks in advance.