Comparison of Rhenium and Iodine as Contrast Agents in X-Ray Imaging

Table 3

Settings for digital radiography.

Exposure ID	X-ray tube potential (kVp)	Amount of additional filtration (mm of Cu)	Current (mA)
X12	50	0	1.25
X13	50	0.1	2.5
X14	50	0.3	10
X15	50	0.5	36
X16	50	1	71
X17	50	1.5	71
X18	81	0	1.25
X19	81	0.1	1.6
X20	81	0.3	1.6
X21	81	0.5	2.2
X22	81	1	4
X23	81	1.5	4
X24	121	0	1.25
X25	121	0.1	1.25
X26	121	0.3	1.25
X27	121	0.5	1.25
X28	121	1	1.25
X29	121	1.5	1.25

The Re- and I-XCA were imaged at 50, 81, and 121 kVp using a clinical X-ray camera. The current was chosen to avoid saturation of the detector.