middle cerebral artery Doppler

Full Definition

A specialized Doppler ultrasound technique that measures blood flow velocity in the fetal middle cerebral artery. This assessment is primarily used to detect fetal anemia, particularly in cases of red blood cell alloimmunization or parvovirus infection. Increased peak systolic velocity may indicate fetal anemia requiring intervention. The technique is also used to evaluate fetal well-being in growth-restricted fetuses, as changes in cerebral blood flow can indicate fetal compromise.

Usage

Usage note: Always specify 'fetal' when used in mixed obstetric contexts to avoid confusion with maternal vascular assessments.

In Context

• "The middle cerebral artery Doppler showed elevated peak systolic velocity consistent with fetal anemia." — Fetal medicine report
• "Serial MCA Doppler studies will be performed to monitor for developing anemia." — Clinical care plan