Figure 5. Superimposing signal intensity data from T₁ and T₂* weighted dynamic contrast-enhanced (DCE) MRI on the same time-scale. Same patient as illustrated Figures 2–4 and 6. T₁ and T₂* weighted DCE-MRI curves for the tumour region of interest shown in Figures 2 and 4 are superimposed on the same time scale. The zero point on the time scale represents the point of injection of contrast medium for the respective studies. The onset and short duration of early T₂* weighted DCE-MRI effects corresponds precisely to the upslope on the T₁ weighted enhancement curve confirming that the upslope has a significant vascular contribution. Transfer constant (K^trans, colour scale 0–1 min^–1) and relative blood flow (rBF) pixel maps are shown. The area of lower transfer constant within the tumour (arrow) corresponds to an area of low relative blood flow.