complex EVARs radiation
04/19/2015
ref:

Angulation of the C-Arm During Complex Endovascular Aortic Procedures Increases Radiation Exposure to the Head

EJVES Apr 2015
  • Head dose was significantly higher in the PO compared with the AO (median 54 μSv [range 24–130 μSv] vs. 15 μSv [range 7–43 μSv], respectively; p = .022), 
  • as was over-lead body dose (median 80 μSv [range 37–163 μSv] vs. 32 μSv [range 6–48 μSv], respectively; p = .003). 
  • Corresponding under-lead doses were similar between operators (median 4 μSv [range 1–17 μSv] vs. 1 μSv [range 1–3 μSv], respectively;p = .222). 
  • Primary operator height, DSA acquisition time in left anterior oblique (LAO) position, and degrees of LAO angulation were independent predictors of PO head dose (p < .05).

the following diagrams explain it all: 



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