Effect of Low Tube Voltage on Image Quality, Radiation Dose, and Low-Contrast Detectability at Abdominal Multidetector CT: Phantom Study

Table 1

The CTDIvol values obtained at each set of acquisition conditions.

Tube current-time product (mAs)	CTDIvol (mGy)
	120 kVp	80 kVp
150	10.19	3.24
200	13.59	4.33
250	16.99	5.41
300	20.39	6.49
350	23.55	7.49
400	26.91	8.57
450	30.28	9.64
500	33.64	10.71
550	37.00	11.78
600	40.37	12.85
650	43.73	13.92