We study the influence of limited-view scanning on the depth imaging of photoacoustic tomography.The situation,in which absorbers are located at different depths with respect to the limited-view scanning trajectory,is called depth imaging and is investigated in this paper.The results show that limited-view scanning causes the reconstructed intensity of deep absorbers to be weaker than that of shallow ones and that deep absorbers will be invisible if the scanning range is too small.The concept of effective scanning angle is proposed to analyse that phenomenon.We find that an effective scanning angle can well predict the relationship between scanning angle and the intensity ratio of absorbers.In addition,limited-view scanning is employed to improve image quality.
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机译：Extended imaging depth to 12 mm for 1050-nm spectral domain optical coherence tomography for imaging the whole anterior segment of the human eye at 120-kHz A-scan rate
机译：Integrating photoacoustic ophthalmoscopy with scanning laser ophthalmoscopy, optical coherence tomography, and fluorescein angiography for a multimodal retinal imaging platform
