UTMB Health at Galveston 1 article published in JoVE Bioengineering Intraductal Delivery to the Rabbit Mammary Gland Amelia Clark1, Nora K. Bird2, Amy Brock1 1Department of Biomedical Engineering, The University of Texas at Austin, 2Department of Anesthesiology, UTMB Health at Galveston Here, we describe a technique for the localized delivery of reagents to the rabbit mammary gland via an intraductal injection. In addition, we describe a protocol for visualization and the confirmation of delivery by high-resolution ultrasound imaging of contrast agents.