Effect of low-xenon and krypton supplementation on signal/noise of regional CT-based ventilation measurements.

@article{Chon2007EffectOL,
  title={Effect of low-xenon and krypton supplementation on signal/noise of regional CT-based ventilation measurements.},
  author={Deokiee Chon and Kenneth C. Beck and Brett Simon and Hidenori Shikata and O. I. Saba and Eric A. Hoffman},
  journal={Journal of applied physiology},
  year={2007},
  volume={102 4},
  pages={
          1535-44
        }
}
Xenon computed tomography (Xe-CT) is used to estimate regional ventilation by measuring regional attenuation changes over multiple breaths while rebreathing a constant Xe concentration ([Xe]). Xe-CT has potential human applications, although anesthetic properties limit [Xe] to <or=35%. We investigate effects of lower [Xe], including a low [Xe]-krypton (Kr) combination, on time constant (TC) determination. Six anesthetized sheep were scanned prone and supine using multidetector row CT. Lungs… CONTINUE READING

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