Table 1. The average gray-value of the rim of tumor 1 in liver 1 in different directions at various times.

	North	NW	West	SW	South	SE	East	NE
A5: 0 s	134.2	122.2	114.3	122.3	122.2	139.2	136.2	138.6
A7:60s	120.4	109	104.8	102.3	115.2	105.4	107.4	100.9
A8:90s	128.6	120.1	123	127.8	147.2	137.1	147.6	142.2
A9:120s	133.2	133.4	130	130	139.1	134.3	150.4	148.6
A10:150s	143.3	139.5	138.5	135.6	147.7	147	143.2	144.4
A13:5min.	148.3	144.4	141.5	147.6	162.1	154.2	162.2	155.7
A14:10min.	173.3	159	152.3	151	170.2	164	185.7	178.8