Photodynamic Therapy Using HMME for Port-Wine Stains: Clinical Effectiveness and Sonographic Appearance

Table 3

Changes in skin thickness and density of patients with PWS before and after of HMME-PDT ().

		Skin thickness (mm)			Skin density (g/cm^3)
Efficacy	Number of cases	Normal skin	Before treatment	After treatment	Difference	Normal skin	Before treatment	After treatment	Difference
Cured	10	1.33	1.98	1.23	0.74	22.04	13.00	21.69	-8.72
Sign. Eff.	21	1.12	1.67	1.09	0.60	28.49	14.88	25.47	-6.95
Effective	13	1.45	1.69	1.42	0.33	29.31	12.12	25.13	-4.85
Ineffective	1	1.47	1.77	1.61	0.16	24.52	15.04	17.23	-2.19
value					14.53				5.43
value					<0.001				0.008