TY  - CHAP
M1  - Book, Section
TI  - Fetal Brain Circulation
A1  - Figueras, Francesc
A1  - Gull, Ilan
A2  - Malinger, Gustavo
A2  - Monteagudo, Ana
A2  - Pilu, Gianluigi
A2  - Paladini, Dario
A2  - Timor-Tritsch, Ilan E.
PY  - 2023
T2  - Timor's Ultrasonography of the Prenatal Brain, 4e
AB  - KEY  POINTSThe  peak  systolic  velocity  (PSV)  and  the  pulsatility  index  (PI)  are  the  commonly  used  clinical  parameters  for  the  evaluation  of  fetal  cerebral  blood  perfusion.Ultrasonic  measurement  of  the  middle  cerebral  artery  peak  systolic  velocity  (MCA  PSV)  can  predict  the  existence  of  moderate-to-severe  fetal  anemia.Under  hypoxic  conditions,  the  fetus  redistributes  its  flow  toward  the  brain,  a  phenomenon  called  brain  sparing.56  This  brain  sparing  effect  is  reflected  in  the  MCA  flow  that  shows  decreased  pulsatility  at  Doppler  evaluation.  Decreased  pulsatility,  which  reflects  low  cerebral  resistance  to  blood  flow,  constitutes  a  late  manifestation,  with  acceptable  specificity  but  low  sensitivity  for  clinical  applicability.  
SN  - 
PB  - McGraw Hill Education
CY  - New York, NY
Y2  - 2024/04/16
UR  - obgyn.mhmedical.com/content.aspx?aid=1194721632
ER  -