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Photoacoustic Cystography
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X-ray induced acoustic computed tomography.

P Samant1,2, L Trevisi3, X Ji4

  • 1Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, 73071, USA.

Photoacoustics
|March 28, 2020
PubMed
Summary
This summary is machine-generated.

X-ray induced acoustic computed tomography (XACT) offers a novel imaging solution by converting X-ray energy into ultrasonic waves. This technique promises low-dose, fast, 3D imaging with single-sided access, overcoming limitations of traditional X-ray methods.

Keywords:
Density measurementImage guided therapyLow dose CTNon-destructive testingRadiation dosimetryX-ray beam characterizationX-ray induced acoustic computed tomography

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Area of Science:

  • Medical imaging
  • Non-destructive testing (NDT)
  • Acoustic imaging

Background:

  • Traditional X-ray imaging faces limitations including radiation harm and sample accessibility.
  • X-ray induced acoustic computed tomography (XACT) emerges as a novel imaging modality.
  • XACT addresses these limitations by utilizing X-ray induced ultrasonic emissions.

Purpose of the Study:

  • To introduce and explain the principles of X-ray induced acoustic computed tomography (XACT).
  • To review the evolution and milestones of XACT technology.
  • To highlight potential applications and future directions of XACT in biomedical imaging and NDT.

Main Methods:

  • XACT employs X-ray excitation to induce localized heating and thermoelastic expansion.
  • This expansion generates detectable ultrasonic waves.
  • These ultrasonic waves are then used for computed tomography reconstruction.

Main Results:

  • XACT enables imaging through the detection of X-ray induced ultrasonic emissions.
  • The technique demonstrates potential for low-dose, rapid, 3D imaging.
  • Single-sided access to the sample is sufficient for imaging.

Conclusions:

  • XACT presents a promising alternative to conventional X-ray imaging, mitigating radiation concerns.
  • The technology has significant potential for applications in biomedical diagnostics and non-destructive testing.
  • Further advancements in XACT are expected to expand its capabilities and applications.