1. To learn about the potential pitfalls that may be encountered in interpreting neuro imaging exams. 2. To understand the technical errors in the realisation of neuro imaging exams that contribute to misinterpretation. 3. To be aware of the spectrum of factors that contribute to active errors (detection, characterisation) in interpretation of neuro exams. Friday the type and extent of parenchymal injuries. It can help detect active extravasation of contrast and is of great help in guiding transcatheter embolisation. It may also demonstrate urine leakage, preexisting abormalities with increased risk of injury from blunt trauma, and associated abdominal and retroperitoneal injuries. The volumetric data acquired can be used to obtain high-resolution MPR, MIP and 3D images that help display complex injuries. The wide availability of MDCT in major trauma patients has reduced the use of other imaging modalities: IVU in unstable patients already in the operative room, and ultrasonography. Learning Objectives: