Table 2.

Comparison of perfusion parameters at baseline, 40 GY^a CRT^b and 66 Gy CRT stratified by response to CRT (n = 24).

Perfusion parameter	Responders (n = 12)				Partial responders (n = 9)				Static disease (n = 3)
	Baseline	40 Gy CRT	66 Gy CRT	p-Value	Baseline	40 Gy CRT	66 Gy CRT	p-Value	Baseline	40 Gy CRT	66 Gy CRT	p-Value
BFc (ml/100 g/min)	125.3 ± 25.7	122.7 ± 32.4	82.5 ± 36.3	0.002	86.7 ± 20.8	118.9 ± 39.1	85.4 ± 21.0	0.050	100.3 ± 56.5	92.1 ± 9.3	72.0 ± 28.5	0.264
BVd (ml/100 g)	12.2 ± 3.5	13.8 ± 6.6	10.1 ± 5.9	0.005	8.4 ± 2.6	12.5 ± 7.0	7.5 ± 2.7	0.147	13.4 ± 6.7	7.7 ± 0.7	7.3 ± 3.1	0.097
MTTe (seconds)	7.0 ± 1.2	7.1 ± 2.4	8.4 ± 2.2	0.024	7.1 ± 2.4	7.3 ± 2.2	6.2 ± 1.6	0.124	8.4 ± 1.5	5.7 ± 1.6	7.7 ± 0.9	0.178
PSf (ml/100 g/min)	48.7 ± 10.6	48.7 ± 14.9	41.2 ± 23.6	0.233	58.4 ± 16.3	38.3 ± 20.2	36.7 ± 13.4	0.032	41.0 ± 28.6	54.7 ± 38.1	18.5 ± 8.3	0.097

^aGray unit.

^bChemo-radiotherapy.

^cBlood flow.

^dBlood volume.

^eMean transit time.

^fPermeability Surface.