Intravascular catheterization is a common procedure in critically ill patients to enable measurement of hemodynamic variables, delivery of medications and nutritional support. Ultrasound-guided central venous catherization (CVC) placement has been shown to significantly reduce the number of procedural complications in comparison to the traditional landmark technique. The standard ultrasound-scanning includes two different approaches, an out-of-plane and in-plane approach. Using the out-of-plane approach could affect visualization of the needle tip during CVC placement. Complications such as posterior wall puncturing of the target vein or artery and pneumothorax can occur. When using the in-plane approach, the entire needle including the tip may be visualized, but it is technically more difficult to align the ultrasound transducer perfectly with the target vessel as well as the needle during cannulation. A novel 4D needle position technology utilizing magnetic field induction is able to detect the needle position and trajectory in both in- and out-of-plane approaches. This could potentially invaluable, especially for novice proceduralists and lead to improve procedural success and further decrease in complication rates. We hypothesize that 4D needle position ultrasound technology will lead to a significant increase in the first attempt success rate in simulated central venous catheter placement using a low-fidelity simulator . The study will be conducted in the multidisciplinary Simulation-Center, Mayo Clinic, Rochester. We will record participants’ characteristics (including demographics (gender, age), prior experience with CVC placement, prior experience with use of ultrasound, prior experience in video gaming, and assessment of spatial ability using the 24 item - Mental Rotation Test by Peters (MRT) (Peters)). Participants will be given a short tutorial to explain the procedure. CVC placement will use the low-fidelity simulator (Gen II Ultrasound Central Line Training Model, CAE Healthcare). All placements will be video recorded.