Table 6.

Clinical validation of output and attenuation.

AP abdomen
Patient	AP thickness(cm)	mAs delivered	Tissue HVL calculated (cm)	ESE(mR)	mAs needed	Error(%)
1	30.3	19	4.99	355	24.6	29
2	24.6	14.65	4.31	130	10.6	−28
3	32.2	30.9	4.75	498	32.5	5
4	21.4	9.78	4.18	75	6.6	−32
5	26.3	18.7	4.34	176	13.6	−27
6	25.4	22.75	4.01	150	11.9	−48
7	27.3	21.69	4.36	209	15.8	−27
8	15.7	5.59	3.64	28	2.9	−49
9	21.9	5.62	5.07	81	7.1	27
10	25.7	14.32	4.53	158	12.5	−13
Average	25.1	16.3	4.42	186	14	−16
SD	19%	49%	9.9%	76%	64%	28
PA chest
Patient	AP thickness (cm)	mAs delivered	Tissue HVL calculated (cm)	ESE (mR)	mAs needed	Error(%)
1	27.3	3.92	7.79	15.8	2.5	−37
2	26.6	2.7	8.96	14.9	2.3	−13
3	23.6	1.5	11.13	11.5	1.9	26
4	23	1.72	9.92	10.9	1.8	5
5	28.9	4.9	7.55	18.1	2.8	−44
6	24.4	2.22	9.08	12.3	2.0	−10
7	32	3.97	9.08	23.6	3.5	−13
8	27.3	2.17	10.29	15.8	2.5	13
9	21.9	1.22	12.02	10.0	1.7	37
10	29.7	1.95	11.88	19.4	2.9	50
Average	26.5	2.63	9.77	15.2	2.38	1.3
SD	12%	47%	16%	28%	24%	31