High Uterine Artery Resistance

Hi all, I had my 20th week detailed scan and gynae said I had high uterine artery resistance, meaning blood flow to placenta not good, alot of resistance. She started me on aspirin (blood thinner) and calcium supplements. Gynae also shared that baby could be premature, have low birth weight or stunted growth if continue to have high resistance. Anyone had similar experience? Was there anything that helped improve the blood circulation other than aspirin?