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Acquisition hardware for digital imaging.

William R Widmer1

  • 1School of Veterinary Medicine, Purdue University, W. Lafayette, IN 47907, USA. widwil@purdue.edu

Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association
|February 21, 2008
PubMed
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Digital radiography, including computed radiography (CR) and direct digital radiography (DDR), offers quality diagnostic images in veterinary medicine. DDR represents an emerging technology with various detector types, while CR is more established.

Area of Science:

  • Veterinary Medicine
  • Medical Imaging
  • Radiography

Background:

  • Digital radiography adoption is increasing in veterinary practice.
  • Two primary digital imaging systems exist: computed radiography (CR) and direct digital radiography (DDR).

Purpose of the Study:

  • To outline the fundamental principles and technologies of CR and DDR systems.
  • To compare the basic operational mechanisms of CR and DDR in veterinary radiography.

Main Methods:

  • Computed radiography (CR) involves a two-step process: image capture on a phosphor plate followed by reader-based processing.
  • Direct digital radiography (DDR) offers direct readout, eliminating the need for a separate reader.
  • DDR systems include flat-panel detectors (direct or indirect conversion) and charge-coupled device (CCD) detectors.

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Main Results:

  • Both CR and DDR systems produce high-quality diagnostic images.
  • CR utilizes a mature, two-step imaging process.
  • DDR is an emerging technology with diverse detector types (flat-panel, CCD) offering direct digital data acquisition.

Conclusions:

  • CR and DDR are effective digital radiography modalities in veterinary medicine.
  • DDR systems, though emerging, provide efficient direct digital imaging solutions.