[HSF] (no subject)

[james le]

what is a poor target? it has different meanings for different surgeons.
  should we take any thing less than 1mm by angiogram  as poor target?  should the measurement  be by computer programmes or simply by eye balling?
  Vessels on the anterior and posterior walls of the heart  and the catheter in the aorta are at a different distance from the camera . does it affect the magnification of vessels differently?

       
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