Thermal assessment of 40-MHz pulsed Doppler ultrasound in human eye.

@article{Cucevic2005ThermalAO,
  title={Thermal assessment of 40-MHz pulsed Doppler ultrasound in human eye.},
  author={Viviene Cucevic and Allison S Brown and F. Stuart Foster},
  journal={Ultrasound in medicine & biology},
  year={2005},
  volume={31 4},
  pages={565-73}
}
Tissue exposure to diagnostic pulsed Doppler ultrasound (US) can cause significant temperature rises. Temperature rise induced by US biomicroscopy (UBM) system (VS40, VisualSonics, Toronto, ON, Canada) was measured in ex vivo human and rabbit eyes with a 26-gauge K-type needle thermocouple. The operating frequency was 40 MHz with a free field I(SPTA) of 2.6 mW/cm(2) (B-mode) and 11.9 W/cm(2) (Doppler). Peak negative pressures were 5.22 MPa (B-mode) and 7.32 MPa (Doppler), resulting in MIs of 0… CONTINUE READING

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