Prospective durability testing of a vascular access phantom.

Introduction: We assessed the acoustic transmission, image quality, and vessel integrity of the Blue Phantom™ 2 Vessel Original Ultrasound Training Model with repeated use.

Methods: The study consisted of two phases. During the first phase, a portion of the Blue Phantom™ rubber matrix (without a simulated vessel) was placed over a two-tiered echogenic structure and was repeatedly punctured with a hollow bore 18-gauge needle in a 1 cm(2) area.

The double-line sign: a false positive finding on the Focused Assessment with Sonography for Trauma (FAST) examination.

Background: Emergency physicians commonly perform Focused Assessment with Sonography for Trauma (FAST) examinations to evaluate for free intraperitoneal fluid. Many ultrasound findings can be misinterpreted as free fluid, resulting in false-positive FAST examinations.

Objectives: To describe a previously unreported ultrasound finding that can be misinterpreted as free intraperitoneal fluid.