New embolization coil containing a nitinol wire core: preliminary in vitro and in vivo experiences.

Purpose: To improve the stability of the standard stainless steel embolization coil by adding a nitinol wire core.

Materials And Methods: With use of one coil with a nitinol wire core and one without one, stability and resistance to elongation were measured in vitro. Thirty-one factory-made stainless-steel macrocoils equipped with preshaped nitinol wire cores were acutely deployed into branches of the superior mesenteric artery (SMA) in five pigs (part I of the study).

Dilated duct pattern at mammography.

Purpose: To determine the importance of a dilated duct pattern at mammography.

Materials And Methods: Mammograms obtained in 46 women with histopathologically proved, asymmetrically dilated ducts were retrospectively studied. The laterality and location of the asymmetrically dilated duct, the presence of branching, and associated findings such as microcalcifications, nipple discharge, and interval change were evaluated.