Color flow Doppler-A useful instrument in the diagnosis of vasa previa

Abstract Vasa previa is associated with an increased perinatal mortality rate and rarely is diagnosed in the antepartum period. We present a case in which vasa previa was correctly diagnosed by use of color flow Doppler imaging. This modality is a valuable adjunct in the evaluation of patients suspected to have vasa previa. (Am J Obstet Gynecol 1990;163:1566-8.)