Fig. 3
From: 7-T MRI for brain virtual autopsy: a proof of concept in comparison to 3-T MRI and CT
a-h Case 2. An intraparenchymal haemorrhage was delineated on 7-T MRI (arrowhead in a: T2-weighted sequence (sampling perfection with application-optimised contrasts by using different flip angle evolutions, SPACE) and in b: susceptibility-weighted imaging). The haemorrhage presented with postmortem sedimentation. The SPACE image is limited by signal inhomogeneity visible on the anatomically left side adjacent to the haemorrhage. In addition, MRI detected subtle lesions, better delineated at 7 T than at 3 T: microinfarcts (c: 7-T T2-weighted SPACE sequence; d: 3-T T2-weighted turbo field echo sequence), and microhaemorrhages (e and g 7-T T2-weighted SPACE sequence and 7-T susceptibility-weighted imaging; f and h, 3-T T2-weighted turbo field echo sequence and venous blood oxygen level-dependent imaging)