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Table 3: 
Dose reduction in entrance surface dose rate (with backscatter) measured with a PMMA phantom
Low-Mode Fluoroscopy (mGy/min)Normal-Mode Fluoroscopy (mGy/min)DSA (mGy/image)
Normal dose (15 p/s in fluoro.) procedure9.925.25.9
Low-dose (7.5 p/s in fluoro.) procedure7.016.63.1
Dose reduction % (low dose/normal dose)303447
  • Note:—PMMA indicates polymethylmethacrylate. Focus-phantom distance: 67 cm; Focus image detector; 104 cm. 20-cm thickness of PMMA; FOV 31.1 cm. The dose per pulse in the new low-dose fluoroscopy mode has been increased in comparison with the “normal” one to reduce the noise.