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UCSF Multidisciplinary Approach to the Placenta Service (MAPS)

Placenta accreta is a condition that occurs when the placenta attaches too strongly onto or too deeply into the uterine wall. There are different levels of severity which fall under the overall category of placenta accreta spectrum (PAS) disorders (accreta, increta, percreta). In a typical pregnancy, the placenta attaches to a thin inner layer of the uterus that is then sloughed off during birth of an infant. This allows the placenta to separate from the uterine muscle and be expelled.

Placenta accreta

  • Accreta: the placenta attaches abnormally and is too adherent to the uterus
  • Increta: the placenta invades and involves the uterine muscle
  • Percreta: the placenta grows into and through the uterine wall, and may attach to nearby organs such as the bladder

MAPS: Multidisciplinary Approach to Placenta Service

The UCSF MAPS team works together to diagnose and care for women with PAS. The UCSF approach features: 

  • Collaboration with multidisciplinary teams
  • Pre and post delivery team huddles
  • Radiology/pathology/surgery correlation

Faculty Members 

Jo Anne Gras, DO Clinical Professor Multidisciplinary Accreta Program Director
Academic OB/Gyn Hospitalist

Juan M. Gonzalez Velez, MD, PhD Associate Professor Medical Director of Labor and Delivery Maternal-Fetal Medicine Fellowship Director

Radiology Department Faculty Members & Physicians

  • Liina Poder
  • Priyanka Jha
  • Mark Sugi
  • Maureen Kohi