Hi, I am 65 years old cad patient. Once suffer Awmi 5 yrs. Ago. From then I am depending on cad drugs. I have not gone through angiography test. The echo report says that 'Cad with Mod LV systolic dysfunction. Lvef 40.98%.Would you please advice me whether I have to go for catheter or CT angiography for my prevailing level of risk. Parwez Akhtar.

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