Table 4.

Accuracies of the mathematical model relative to the other phantoms based on Table 1: ${\mathrm{A}}_{\text{ALD}}$, ${\mathrm{A}}_{\text{CHE}}$, $A_{\text{SKU}}$, ${\mathrm{A}}_{\text{UNI}}$, and $A_{\mathrm{A}31}$ with $\text{BSF}=1.35$; ${}^{\text{NEW}}{\mathrm{A}}_{\text{ALD}}$, ${}^{\text{NEW}}{\mathrm{A}}_{\text{CHE}}$, ${}^{\text{NEW}}{\mathrm{A}}_{\text{SKU}}$, ${}^{\text{NEW}}{\mathrm{A}}_{\text{UNI}}$, and ${}^{\text{NEW}}{A}_{\mathrm{A}31}$ recalculated using the BSF from previous works ^{(15) , (16)}

(a) Alderson Rando phantom Examination	Number of radiological systems	Number of measurements	$A_{\text{ALD}}$	${}^{\text{NEW}}{A}_{\text{ALD}}$
PA skull	4	5	0.07	0.06
LAT skull	4	5	0.25	0.24
AP chest	5	9	0.25	0.22
PA chest	4	5	0.01	0.01
LAT chest	4	5	0.01	0.01
AP lumbar spine	4	5	0.07	0.07
LAT lumbar spine	4	5	0.09	0.09
LAT lumbo‐sacral joint	4	5	0.09	0.09
AP abdomen	4	5	0.34	0.34
AP pelvis	5	7	0.23	0.23
AP urinary tract	4	6	0.34	0.34
Average			0.16	0.15

(b) Chest phantom Examination	Number of radiological systems	Number of measurements	$A_{\text{CHE}}$	${}^{\text{NEW}}{A}_{\text{CHE}}$
AP chest	13	16	0.15	0.14
PA chest	10	13	0.16	0.15
LAT chest	10	13	0.13	0.13
Average			0.15	0.14

(c) Skull phantom Examination	Number of radiological systems	Number of measurements	$A_{\text{SKU}}$	${}^{\text{NEW}}{A}_{\text{SKU}}$
PA skull	15	18	0.10	0.08
LAT skull	18	20	0.08	0.06
Average			0.09	0.07

(d) Uniform phantom Examination	Number of radiological systems	Number of measurements	$A_{\text{UNI}}$	${}^{\text{NEW}}{A}_{\text{UNI}}$
PA skull	8	10	0.12	0.12
LAT skull	8	9	0.16	0.14
AP chest	5	7	0.23	0.22
PA chest	5	7	0.07	0.07
LAT chest	5	6	0.06	0.06
AP lumbar spine	16	18	0.10	0.10
LAT lumbar spine	16	17	0.13	0.12
LAT lumbo‐sacral joint	11	12	0.17	0.16
AP abdomen	24	30	0.11	0.10
AP pelvis	24	30	0.13	0.13
AP urinary tract	22	25	0.10	0.10
Average			0.13	0.12

(e) AAPM31 phantom Examination	Number of radiological systems	Number of measurements	$A_{\mathrm{A}31}$	${}^{\text{NEW}}{A}_{\mathrm{A}31}$
PA skull	6	7	0.19	0.15
LAT skull	5	6	0.25	0.19
AP chest	4	5	0.05	0.05
PA chest	3	4	0.07	0.02
LAT chest	3	4	0.08	0.01
AP lumbar spine	10	12	0.07	0.07
LAT lumbar spine	6	8	0.08	0.06
LAT lumbo‐sacral joint	7	9	0.09	0.07
AP abdomen	11	16	0.15	0.14
AP pelvis	8	11	0.12	0.11
AP urinary tract	9	13	0.15	0.14
Average			0.12	0.09