. 2005 Jun 2;18(3):188–195. doi: 10.1007/s10278-005-5163-z

Table 2.

Statistics of image numbers and stored data volumes for each dataset type created during the 2-week sample period

	All examinations	Examinations with volumetric datasets	Examinations without volumetric datasets
Number of examinations	867	604	263
Main PACS
Total data volume (Gb)	26.8	24.2	2.6
Preparation scan^a,b
Number of images	2.0 (1.0, 3.0)	2.0 (1.0, 3.0)	2.0 (1.0, 3.0)
Data volume (Mb)	0.4 (0.3, 0.7)	0.5 (0.3, 0.8)	0.3 (0.2, 0.5)
Axial dataset^a
Number of images	96.0 (44.3, 130)	120.0 (92.0, 169.3)	27.0 (24.0, 78.0)
Data volume (Mb)	18.3 (9.8, 23.4)	21.2 (17.5, 27.8)	4.0 (3.7, 15.0)
Standardized 3-D^a,c
Number of images	45.0 (0, 50.0)	45.0 (42.0, 60.0)	NA
Data volume (Mb)	8.7 (0, 10.7)	9.5 (7.9, 11.1)	NA
Additional 3-D^a,d
Number of images	0 (0, 0)	0 (0, 0)	NA
Data volume (Mb)	0 (0, 0)	0 (0, 0)	NA
Total^a
Number of images	150.0 (70, 188.0)	169.0 (142.0, 257.5)	29.0 (25.0, 79.0)
Data volume (Mb)	29.0 (14.4, 35.0)	31.5 (28.1, 46.6)	4.4 (4.0, 15.3)
Mini-PACS
Total data volume (Gb)	NA	78.1	NA
Volumetric dataset^a
Number of images	NA	539.0 (362.5, 738.3)	NA
Data volume (Mb)	NA	99.4 (76.2, 137.0)	NA

NA = Not applicable.

^aData shown are medians, and the data in parentheses are 25 and 75% quartiles.

^bScout and bolus-tracking images.

^cRoutinely performed by technologists.

^dAdded by radiologists.