Depending on your symptoms, your doctor will arrange tests that aid in the diagnosis of your condition and to better understand what is going on inside your body. These tests can be conducted using various imaging technologies like X-ray, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, bone mineral densitometry (BMD), angiography, nuclear medicine and positron emission tomography (PET), or can include non-invasive cardiac tests like electrocardiogram (ECG) and echocardiogram.