"Following the acquisition, post-processing takes place which includes a high-pass filter, to remove background inhomogeneity of the magnetic field, and the application of a phase map to accentuate the directly observed signal loss 2,4."
"SWI (combined post-processed magnitude and phase)"
"Distinguishing between calcification (made up primarily of calcium phosphate, but also contain very small amounts of copper (Cu), manganese (Mn), zinc (Zn), magnesium (Mg), and iron (Fe)) 3 and blood products is not possible on the post-processed SWI images as both demonstrate signal drop out and blooming."
Expected headings
"Physics"
"Clinical use"
"Interpretation"
"Pitfalls"
"Handedness"
"Windowing and greyscale inversion"
"Aliasing"
"Oxygenation"
"Paramagnetic compounds include deoxyhaemoglobin, ferritin and haemosiderin 1."
"Distinguishing between calcification (made up primarily of calcium phosphate, but also contain very small amounts of copper (Cu), manganese (Mn), zinc (Zn), magnesium (Mg), and iron (Fe)) 3 and blood products is not possible on the post-processed SWI images as both demonstrate signal drop out and blooming."
"how images are presented (e.g. greyscale inversion)"
"If you want to, you can also invert the image if need be so that you always look a phase images the same (e.g. veins appearing dark)."