Table 1:

Summary table of HU values at different kiloelectron volts

Energy (keV)	Mean HU	95% CI	SD	Median	95% CI	2.5–97.5 P	Normal Distribution
66	60,39	51,598–69,182	27,854	56	44,000–65,171	21,525–129,475	.028^{^a}
70	55,659	47,591–63,726	25,5584	52	41,000–60,171	21,050–118,425	.028^{^a}
77	49,171	41,969–56,372	22,8155	49	37,000–52,285	18,000–105,950	.036^{^a}
86	43,049	36,483–49,615	20,8026	43	32,943–47,057	13,575–96,750	.04^{^a}