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Related Experiment Videos

[Reducing radiation dosage with modern DSA equipment]

T Waggershauser1, K Herrmann, M Schätzl

  • 1Institut für Radiologische Diagnostik, Klinikum Grosshadern, Ludwig-Maximilians-Universität München.

Der Radiologe
|March 1, 1995
PubMed
Summary

New pulsed fluoroscopy modes on the Multistar T.O.P. significantly reduce patient radiation dose during angiographic and interventional procedures. This technology can decrease fluoroscopy dose by up to 90% while maintaining image quality.

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Area of Science:

  • Medical Imaging
  • Radiology
  • Radiation Dose Reduction

Context:

  • Long fluoroscopy times in angiographic and interventional procedures contribute significantly to patient radiation dose.
  • The Multistar T.O.P. (Siemens) system incorporates advanced features for dose reduction.

Purpose:

  • To evaluate the effectiveness of pulsed fluoroscopy modes compared to standard continuous fluoroscopy and a supervision mode for dose reduction.
  • To assess image quality and radiation dose in a human pelvic phantom using the Multistar T.O.P.

Summary:

  • Pulsed fluoroscopy at 15, 7.5, and 3 pulses/second were compared to continuous fluoroscopy and a supervision mode.
  • The supervision mode reduced dose by 42% compared to continuous fluoroscopy.
  • Pulsed fluoroscopy at 3 pulses/second achieved a 90% dose reduction, with 7.5 pulses/second reducing dose by 73%, and 15 pulses/second by 46%, all while maintaining adequate image quality.

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Impact:

  • The Multistar T.O.P.'s pulsed fluoromodes can reduce fluoroscopy dose by up to 90% in interventional and angiographic procedures.
  • This enables safer patient care by minimizing radiation exposure during necessary medical imaging.