不同扫描宽度对光声成像的影响

Influence of Differential Scan Width on Photoacoustic Imaging

目的:研究不同扫描宽度对光声成像的影响,提高光声成像的质量。方法:采用线性扫描和滤波反投影算法。结果:得出了扫描宽度越大或单位长度内扫描次数越多,成像效果越好,若采用旋转扫描重建,则可以进一步提高重建图像的质量。结论:该研究结果对光声探测器的合理设计和成像效果评估具有较好的参考价值。目的:研究不同扫描宽度对光声成像的影响,提高光声成像的质量。方法:采用线性扫描和滤波反投影算法。结果:得出了扫描宽度越大或单位长度内扫描次数越多,成像效果越好,若采用旋转扫描重建,则可以进一步提高重建图像的质量。结论:该研究结果对光声探测器的合理设计和成像效果评估具有较好的参考价值。

Objective In order to study the influence of differential scan width on photoacoustic imaging and approve the quality of reconstructed image. Methods Numerical experiments of linear scanning and filter back-projection algorithm were carried out. Results The quality of reconstructed images was good when the scan width was greater or the number of scans in unit length was more. The better quality of reconstructed imaging was obtained with rotating scans transducers. Conclusion The results of the study are helpful for the design of transducers and the evaluation of reconstructed images.