Visualisation of the pattern of contrast enhancement in dynamic breast MRI
2005 (English)In: WDIC 2005: Workshop Proceedings, 2005Conference paper (Refereed)
A new pixel-mapping method for visualising contrast uptake in dynamic MR images of the breast is presented. The method reduces the sequence of images of a single spatial slice over time to a single colour-coded image. This is achieved by fitting a linear-slope model pixel-wise to the slice time series and using the fitted parameters to define HSV colour space coordinates. The model parameters are related to the shape of the signal intensity-time curve at each pixel. The effect is that pixels with rapid and significant initial postcontrast enhancement appear brighter and more saturated, whilst the nature and degree of intermediate and late postcontrast enhancement is reflected in the colour hue. Preliminary results are reported for six subjects with suspicious MRI findings subsequently confimed by pathology. The results suggest that the method shows
promise as a replacement for, or adjunct to, the review of the raw time series data and/or associated difference images in the clinical setting.
Place, publisher, year, edition, pages
Computer Vision and Robotics (Autonomous Systems)
IdentifiersURN: urn:nbn:se:uu:diva-76152ISBN: ISBN 0-9580255-3-3OAI: oai:DiVA.org:uu-76152DiVA: diva2:104064