Interventional radiologists commonly treat patients using less-invasive options to surgery that involve inserting a catheter through a major artery under ultrasound guidance in order to reach internal organs or blood vessels. The researchers tested medical students’ comfort in using a 3-D-printed model, compared to commercially available models, to simulate ultrasound-guided access through the femoral artery in the groin. Thirty-two students were randomized to practice with the 3-D-printed model or the commercial model in a simulation experience developed by the authors of the study. Prior to the simulation exercise, 73 percent of the 3-D group and 76 percent of the commercial-model group indicated that they did not feel confident in performing the procedure. After the training, most of the 3D model and commercial model trainees agreed that their respective models were easy to use (93.3 percent and 94.1 percent) and helpful for practice (93.3 percent and 94.1 percent).
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