The use of 3D rendering, VCI-C, 3D power Doppler and B-flow in the evaluation of interstitial pregnancy with, arteriovenous malformation treated by selective uterine artery embolization

Cornual pregnancy is a rare form of ectopic pregnancy, We describe a case of cornual pregnancy suspected by two-dimensional ultrasonography (2D US) and confirmed by three-dimensional volume contrast imaging in the C-plane. Three-dimensional power Doppler showed a particularly rich blood supply and two-dimensional color Doppler mapping demonstrated arteriovenous malformation (AVM). The feeding vessel originating from the right uterine artery and AVM were demonstrated with B-flow spatio-temporal image correlation (STIC) modality. Conservative management was chosen to preserve the uterus. Angiography confirmed the diagnosis of AVM; embolization with polyvinyl alcohol, particles and embolization coils was performed through the right uterine artery until occlusion of the AVM and feeding vessels bad occurred. Postprocedure color Doppler mapping and B-flow STIC modalities demonstrated absence of flow in the AVM. Serum human chorionic gonadotropin (bCG) levels gradually fell to non-pregnant levels during the ensuing S weeks. To the best of our knowledge this is the first report of cornual pregnancy with AVM. We demonstrate here the value of new three-dimensional ultrasound modalities in the diagnosis of cornual pregnancy and the use of embolization as an effective therapeutic option when conservative treatment with uterine preservation is desired. Copyright (c) 2007 ISUOG. Published by John Wiley & Sons, Ltd.