Design of Near-Infrared Imaging Probe with the Assistance of Ultrasound Localization
Applied Optics, Vol. 40, Issue 19, pp. 3288-3303 (2001)
http://dx.doi.org/10.1364/AO.40.003288
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Abstract
A total of 364 optical source–detector pairs were deployed uniformly over a 9 cm × 9 cm probe area initially, and then the total pairs were reduced gradually to 60 in experimental and simulation studies. For each source–detector configuration, three-dimensional (3-D) images of a 1-cm-diameter absorber of different contrasts were reconstructed from the measurements made with a frequency-domain system. The results have shown that more than 160 source–detector pairs are needed to reconstruct the absorption coefficient to within 60% of the true value and appropriate spatial and contrast resolution. However, the error in target depth estimated from 3-D images was more than 1 cm in all source–detector configurations. With the a priori target depth information provided by ultrasound, the accuracy of the reconstructed absorption coefficient was improved by 15% and 30% on average, and the beam width was improved by 24% and 41% on average for high- and low-contrast cases, respectively. The speed of reconstruction was improved by ten times on average.
© 2001 Optical Society of America
[Optical Society of America ]
OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.3830) Medical optics and biotechnology : Mammography
(170.5270) Medical optics and biotechnology : Photon density waves
(170.7170) Medical optics and biotechnology : Ultrasound
Citation
Quing Zhu, Nan Guang Chen, Daqing Piao, Puyun Guo, and XiaoHui Ding, "Design of Near-Infrared Imaging Probe with the Assistance of Ultrasound Localization," Appl. Opt. 40, 3288-3303 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-19-3288
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