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Reproducibility of quantitative CT perfusion imaging

J H Gillard, BSc, MD, FRCR1, N M Antoun, FRCP, FRCR1, N G Burnet, FRCS, FRCR2 and J D Pickard, FRCS3

Departments of 1Radiology, 2Oncology and 3Neurosurgery, Addenbrooke's Hospital and the University of Cambridge, Cambridge CB2 2QQ, UK



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  		Figure 1. Conventional CT demonstrating the region of interest over the sagittal sinus that is used as the inputfunction. Representative regions of interest in the middle cerebral arteries are also shown. The associated quantitative CT perfusion image is also shown.

 


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  		Figure 2. Scatter plot of cerebral blood flow values obtained from regions of interest in both cerebral hemispheres for the seven volunteers.

 




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