Table 2 Type and average number of procedures performed per patient within the first year after diagnosis and in each of the subsequent years.

Type of procedure^a	Average number of procedures per patient and year
Type of procedure^a	First year	Follow-up years
CT
Head	0.34	0.01
Neck	2.59^c	0.59
Thorax	4.24^c	0.87
Abdomen	3.58^c	0.70
Whole Body	0.20	0.04
Total	10.95 (26)^b	2.23 (11)^b
Radiography
Skull, PA	0.08	0.01
Skull, LAT	0.01	<0.01
Chest, two planes	2.44	0.31
Chest, lying	1.41	0.22
Chest, one plane	0.01	0.02
Abdomen, AP	0.19	0.05
Abdomen, LAT	0.07	0.01
Total	4.22 (33)^b	0.60 (16)^b
Nuclear Medicine
Tc-99m HDP (bone scintigraphy)	0.54	0.08
Tc-99m MAG3 (kidney scintigraphy)	0.03	<0.01
F-18 FDG-PET	0.27	0.04
Total	0.84 (4)^b	0.17 (3)^b
Total amount	16.00	2.97

Note: ^aPA: Taken in direction posterior-anterior, AP: taken in direction anterior-posterior, LAT: taken from an lateral point of view, HDP: Hydroxydiphosphonate, MAG: Mercaptoacetyltriglycine, FDG: Fluorodeoxyglucose.
^bMaximum number of procedures on one patient in parentheses.
^cOverlapping CT scans of neck, thorax and abdomen acquired with different protocols in one session were counted as individual procedures and not as whole-body CT.

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