CT-perfusion measurements in pancreatic carcinoma with different kinetic models: Is there a chance for tumour grading based on functional parameters?

Table 1 Functional VPCT values for adenocarcinomas

Parameter	Max. slope	Patlak	Deconvolution	Mean Difference	95% limits of agreement	p-value^a
BF (ml/min/100 g)	20.4 ± 9.7		36.9 ± 16.0	16.5 ± 8.9	−0.9;33,9	<0.001
BV (ml/100 g)		5.6 ± 5.5	7.3 ± 4.7	−1.7 ± 4.6	−10.7;7.3	0.004
k-trans (ml/min/100 g)		18.9 ± 9.8	12.4 ± 8.2	6.5 ± 5.8	−4.9;17.9	<0.001

Mean values of functional perfusion parameters for n = 48 adenocarcinomas obtained with Maximum slope-, Patlak- and deconvolution models
^afor Wilcoxon matched-pairs test
Abbreviations: BF blood flow, BV blood volume, G1-3 tumor grading

ISSN: 1470-7330