Photoacoustic imaging of blood vessels with a double-ring sensor featuring a narrow angular aperture
Photoacoustic imaging of blood vessels with a double-ring sensor featuring a narrow angular aperture
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DOI：
10.1117/1.1805556
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发表时间：
2004-11-01
影响因子：
3.5
通讯作者：
de Mul, FFM
中科院分区：
文献类型：
--
作者：
Kolkman, RGM;Hondebrink, E;de Mul, FFM
研制了一种具有窄角孔径的光声双环传感器，用于激光诱导光声血管成像。集成光纤使超声波的反射模式检测。通过利用两个环检测到的信号之间的相互关系，传感器的角孔径减小了1.9倍，从1.5度减小到0.8度。因此，可以以类似于超声b扫描模式的方式获得光声图像。其次，通过重建吸收的能量分布，可视化人工血管的横截面。最后，在体内成像和随后的重建吸收的能量分布在腕部浅表血管演示。(C) 2004光学仪器工程师学会。
A photoacoustic double-ring sensor, featuring a narrow angular aperture, is developed for laser-induced photoacoustic imaging of blood vessels. An integrated optical fiber enables reflection-mode detection of ultrasonic waves. By using the cross-correlation between the signals detected by the two rings, the angular aperture of the sensor is reduced by a factor of 1.9, from 1.5 to 0.8 deg. Consequently, photoacoustic images could be obtained in a manner analogous to the ultrasound B-scan mode. Next, the cross section of artificial blood vessels is visualized by reconstruction of the absorbed energy distribution. Finally, in vivo imaging and the subsequent reconstruction of the absorbed energy distribution is demonstrated for superficial blood vessels in the human wrist. (C) 2004 Society of Photo-Optical Instrumentation Engineers.