Table 1.

Summary of published values of OCT attenuation coefficient of human dermis in vivo. All results were calculated using single-scattering model.

Cutaneous tissue	Reference	Wavelength (nm)	AFR ($\mu \mathrm{m}$)	Correction		Location	Sample number	Attenuation (${\mathrm{mm}}^{-1}$)
				CPSF	SRF
Normal skin	Schmitt et al.1	1300	200 to 400	Y	N/A	Forearm	2 subjects	4.6/4.7 (mean)
			250 to 500			Finger		3.7/5.0 (mean)
			100 to 500			Lip		2.0 (mean)
	Kholodnykh et al.51	1300	100	Y	N/A	Forearm	NS	10 to 13
	Gong et al.35	1325	200	Y	Y	Forearm, thigh and lower leg	6 patients	$6.3\pm 0.5$
	Es’haghian et al.69	1300	250	Y	Y	Upper arm, abdomen, back, thigh and calf	7 patients	$5.1\pm 0.7$
	Welzel et al.74	1300	NS	NS	NS	Including forearm	28 patients	3.6 to 4.2 (mean)
Psoriasis	Welzel et al.74	1300	NS	NS	NS	Including forearm	28 patients (17 after treatment)	$2.9\pm 0.9$ (untreated)
								$3.8\pm 1.7$ (treated)
Burn scar	Gong et al.35	1300	200	Y	Y	Forearm, thigh and lower leg	6 patients	$3.8\pm 0.4$ (hypertrophic)
								$4.2\pm 0.9$ (normotrophic)

Note: Papers highlighted in bold present parametric attenuation coefficient imaging; others represent point measurements. AFR, axial fitting range; CPSF, confocal point spread function; N/A, not applicable; NS, not specified; SRF, sensitivity roll-off function.