Table 2:

Data of angiographic units

Data	Institution 1	Institution 2	Institution 3	Institution 4	Institution 5	Institution 6
Angiographic unit (No. of procedures)	AXIOM Artis FA (48)	AXIOM Artis dBA (20)	AXIOM Artis dBA (15)	Allura Xper FD20/10 (10)	Advantx LCN PLUS (5)	Advantx-E LCA (4)	OEC9800 (1)
Detector	I.I. (single plane)	FD (Biplane)	FD (Biplane)	FD (Biplane)	I.I. (Biplane)	I.I. (Single plane)	I.I. (Single plane)
Period of use of the unit, y	5	1	1	1	7	7	4
Period of use of the detector, y	5	1	1	1	3	1	4
Dose area product meter	Available	Available	Available	Available	Not available	Not available	4
Mainly used FOV, cm	28, 20, 14	48, 32, 22, 16*	22, 16, 11*	43, 40, 25, 20*	15, 11	23	23
Minimal total filtration	2.5-mm Al	2.5-mm Al	2.5-mm Al	2.7-mm Al	2.9-mm Al	2.9-mm Al	5.5-mm Al
Fluoroscopy
Removable filter	0.1-, 0.2-, 0.3-mm Cu	0.2-mm Cu	0.1-mm Cu	0.4-mm Cu + 1.0-mm Al	0.1-mm Cu + 1.0-mm Al
Pulse rate	15 pulse/s	15 pulse/s	15, 10 pulse/s	30, 15 pulse/s	30 pulse/s	25 pulse/s	8 pulse/s
Digital subtraction angiography
Removable filter	0.1-, 0.2-, 0.3-mm Cu	0.1-mm Cu	0.1-mm Cu	0.1-mm Cu + 1.0-mm Al	0.1-mm Cu +1.0-mm Al
Frame rate	2 frame/s	1 frame/s	6, 4, 3 frame/s	2 frame/s	1.9 frame/s	3.1 frame/s	30 frame/s

Note:—I.I. indicates image intensifier; FD, digital flat panel detector; Cu, copper; Al, aluminum.

^*The FOV of the digital flat panel detector was specified by the diagonal length.