The evaluation of CT colonograpy (CTC) studies is based on detection, interpretation and reporting of colonic findings. It is performed on a workstation equipped with dedicated CTC software by a primary 2D or a primary 3D approach. In either case, the alternative viewing technique must be available for rapid correlation and characterisation of suspicious findings. Primary 2D evaluation is based on "lumen tracking" by interactively scrolling through the axial slices and multiplanar reformatted images, focusing only on the air-distended colonic lumen from one end to the other. Primary 2D evaluation provides information about the attenuation of findings during the search process and is time-efficient. Primary 3D evaluation is based on 3D virtual endoscopy in an antegrade and retrograde direction and increases both, the conspicuity, especially of small-and medium-sized polyps, and the duration of Given the vast selection of possible imaging modalities and techniques, it is practically impossible to detail all the imaging techniques and typical findings of Neuroradiology in 25 minutes. It has become clear lately, that except for politrauma patients -where CT is still the first method of choice -MRI is the gold standard for Neuroradiology examinations and thus my talk will focus on MRI. In the first part of the talk I will give a short introduction to the MRI techniques used in the evaluation of focal neurological disorders and discuss their utility and possible pitfalls.