Stress test results

I have the stress test results that I recently had, I had to go to the ER for what I now know was an anxiety attack. Dr. thought it appropriate to do all the cardiac tests just to be sure. Here are the results from a nuclear imaging stress test:  Stress EKG negative for inducible ischemia,,, hyperdynamic global left ventricular systolic function, most likely secondary to small cavitary dimensions,,,,mild concentric LVH,,, predominantly fixed inferior and inferolateral perfusion defect appears artifactual given intact wall thickening. Similarly, basilar anteroseptal defect also appears artifactual and I doubt prior infarct,,, No significant scintigraphic reversible ischemia demonstrated.
Does this ound like a normal result, except for the LVH and my dr. has explained that it came from BP. What does artifactual mean? By the way I am a 38 year old female with absolutely no family history of heart disease and BPis now well controlled with medicine. Thanks alot for any help.