Radiology 2021 04 23;299(1):3-26. Epub 2021 Feb 23.
From the CIRD Centre d'Imagerie Rive Droite, Geneva, Switzerland (S.H.); Faculty of Medicine of the University of Geneva, Geneva, Switzerland (S.H.); Department of Surgical Sciences, Division of Radiology, Uppsala University, Uppsala, Sweden (S.H.); CIMC Centre d'Imagerie Médicale de Cornavin, Geneva, Switzerland (S.H.) Departments of Neurology and Radiology, Wayne State University, Detroit, Mich (E.M.H.); Department of Biomedical Imaging and Image-guided Therapy, Medical University Vienna, Vienna, Austria (M.M.T.); Queen Square Institute of Neurology, University College London, London, England (F.B.); Centre for Medical Image Computing (CMIC), Institute of Healthcare Engineering, University College London, London, England (F.B.); and Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centre, Amsterdam, the Netherlands (F.B.).
Susceptibility-weighted imaging (SWI) evolved from simple two-dimensional T2*-weighted sequences to three-dimensional sequences with improved spatial resolution and enhanced susceptibility contrast. SWI is an MRI sequence sensitive to compounds that distort the local magnetic field (eg, calcium and iron), in which the phase information can differentiate. But the term is colloquially used to denote high-spatial-resolution susceptibility-enhanced sequences across different MRI vendors and sequences even when phase information is not used. Read More