Technical consideration for a new X‐ray video progressive scanning system for cardiac catheterization

Merrill A. Wondrow, Alfred A. Bove, David R. Holmes, Joel E. Gray, Paul R. Julsrud

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


The widespread growth of interventional angiographic procedures has expanded the use of X‐ray video systems. Reduced radiation exposure to the patient and staff has been recently reported by implementing a new pulsed progressive scanning video system. We have shown that this system, which enables the pulsing of the X‐ray generator at 30 pulses per second, results in a 50% reduction in radiation exposure. The technical parameters and implementation of a progressive scanning video system are discussed. Image quality, temporal and spatial resolution, and signal‐to‐noise ratio (SNR) were assessed using conventional interlaced and progressive video scanning. These comparisons documented improved resolution, no degradation of ejection fraction measurements, improved clinical images, and a 1.0‐dB improvement in the SNR with the progressive scanning. Progressive scanning video systems reduce radiation exposure and provide an objective improvement in image quality over conventional scanning video systems.

Original languageEnglish (US)
Pages (from-to)126-134
Number of pages9
JournalCatheterization and cardiovascular diagnosis
Issue number2
StatePublished - 1988


  • cardiac angiography
  • diagnostic imaging
  • exposure reduction
  • interlaced scanning
  • video fluoroscopy
  • video image quality

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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