title: Enhancement of objects in photoacoustic tomography using selective filtering.
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.
authors.affiliation: Department of Electronic Engineering, Chonbuk National University, Jeonju-si, Jeonbuk, Korea.
authors.forename: Dong-ho
authors.initials: DH
authors.lastname: Shin
authors.affiliation: Division of Biomedical Engineering, Chonbuk National University, Jeonju-si, Jeonbuk, Korea.
authors.forename: Yoonseok
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Electronic Engineering, Chonbuk National University, Jeonju-si, Jeonbuk, Korea.|Center for Advanced Bioimaging Research, Chonbuk National University, Jeonju-si, Jeonbuk, Korea.
authors.forename: Chul-Gyu
authors.initials: CG
authors.lastname: Song
mesh_terms: D003199:Computer Systems; D054459:Elasticity Imaging Techniques / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods; D019047:Phantoms, Imaging; D061088:Photoacoustic Techniques / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014159:Transducers
keywords: Photoacoustic image; back projection algorithm; real-time; selective filtering; ultrasonic imaging