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  • Title: Enhancement of objects in photoacoustic tomography using selective filtering.
    Author: Shin DH, Yang Y, Song CG.
    Journal: Biomed Mater Eng; 2015; 26 Suppl 1():S1223-30. PubMed ID: 26405881.
    Abstract:
    Here we developed a real-time photoacoustic tomography (PAT) imaging acquisition device based on the linear array transducer utilized on ultrasonic devices. Also, we produced a phantom including diverse contrast media and acquired PAT imaging as the light source wavelength was changing to see if the contrast media reacted. Indocyanine green showed the highest reaction around the 800-nm band, methylene blue demonstrated the same in the 750-nm band, and gold nanoparticle showed the same in the 700-nm band. However, in the case of superparamagnetic iron oxide, we observed not reaction within the wavelength bands used herein to obtain imaging. Moreover, we applied selective filtering to the acquired PAT imaging to remove noise from around and reinforce the object's area. Consequentially, we could see the object area in the imaging was effectively detected and the image noise was removed.
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