Cardiac Terminology: What does this mean?

“The ratio of systolic to diastolic pulmonary vein flow was reduced (diastolic predominant).”

The was in a report of my Left Ventricle. Everything else was judged normal.

I have a cardiologist who I don’t fully trust (working on going to another). I was diagnosed with POTS syndrome and, possibly, PSVT. I have some of my medical records, with his report, for another reason entirely.