Photoacoustic depth-resolved analysis of tissue models

被引:24
作者
Beenen, A [1 ]
Spanner, G [1 ]
Niessner, R [1 ]
机构
[1] UNIV MUNICH,INST HYDROCHEM,D-81377 MUNICH,GERMANY
关键词
pulsed photoacoustic spectroscopy; tissue model; fiber optic; depth resolution; depth profile; lateral resolution; dye laser; imaging;
D O I
10.1366/0003702971938966
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Pulsed photoacoustic laser spectroscopy was used for depth-resolved analysis of artificial tissue models. The technique was applied to investigate the spatial resolution capabilities of a fiber-optical-coupled photoacoustic sensor head. The time-resolved measurements confirmed the theoretical predictions of a depth resolution of 0.1 mm. In an adapted skin model, a strongly absorbing target could be detected up to a layer depth of 14 mm. At a layer depth of 5 mm, a lateral resolution of 3.5 mm was achieved. Because of the depth-resolving capability, this method is well suited as a complementary approach for two-dimensional imaging techniques.
引用
收藏
页码:51 / 57
页数:7
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