31. By comparison, 72 % of areas with abnormal rest perfusion showed decreased segment shortening. 32. Renal perfusion flow is then calculated by: 33. Thus we have for the perfusion term: 34. In addition, ICG can also be used as a tracer in cerebral perfusion diagnostics. 35. A laser Doppler perfusion imager functions by projecting an infrared laser beam over the skin. 36. NAWM shows a decreased perfusion which does not appear to be secondary to axonal loss. 37. Perfusion Balloon takes care of this problem even if balloon is inflated for several hours.38. A shunt is perfusion without ventilation. 39. Thiazides can decrease placental perfusion and adversely affect the fetus so should be avoided in pregnancy. 40. Perfusion -rate-limited kinetics apply when the tissue membranes present no barrier to diffusion.