The Spatial Relationship between Apparent Diffusion Coefficient and Standardized Uptake Value of ¹⁸F-Fluorodeoxyglucose Has a Crucial Influence on the Numeric Correlation of Both Parameters in PET/MRI of Lung Tumors

Table 3

Standardized uptake values and intratumoral ADC values of the patients examined with simultaneous PET/MRI: maximum standardized uptake value (), mean standardized uptake value (), minimum apparent diffusion coefficient (), and mean apparent diffusion coefficient (). R1: reader 1; R3: reader 3.

Pat. nr.			(10^−6 mm^2/s)		(10^−6 mm^2/s)		Distance /; (mm)		Tumor diameter; PET; (mm)
			R1	R3	R1	R3	R1	R3
	22.6	13.4	451	334	1329	1296	20.2	21.8	74.5
	7.2	4.3	6	6	1609	1584	56.5	56.5	96.4
	14.4	8.4	12	12	1036	1016	28.7	28.7	93.6
	8.5	4.6	553	222	1504	1612	48.0	33.0	85.6
	6.1	3.7	235	564	1238	1430	4.8	4.0	29.2
	9.5	5.9	422	381	1937	1339	3.1	8.6	24.0
	8.0	4.8	779	575	1688	1694	9.5	12.6	34.2
	19.7	11.5	49	49	1028	1052	24.8	24.8	54.4
	8.1	4.9	553	638	1150	1164	7.7	3.9	20.4
	2.6	1.4	228	337	1105	1121	22.9	22.4	46.9
Average	10.7	6.3	329	312	1362	1331	22.6	21.6	55.9