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  • velocity
  • Then, the three-dimensional tomograms using simultaneous iteration reconstruction technique (SIRT) for each day are created and by employing the velocity filtering, the overstressed zones are detected. (deepdyve.com)
  • Calculation of the mean difference and standard deviation of the difference between angiographic velocities and velocities calculated from EMF readings confirmed that the technique was independent of catheter position over this range, but that reduction of tube length resulted in a systematic reduction in mean flow velocity measurements. (ucl.ac.uk)
  • sensitivity
  • Double-phase scintigraphy showed higher sensitivity and accuracy in detecting the exact abnormal gland compared to the digital subtraction (90% and 75% vs. 76% and 66%, respectively). (springer.com)
  • For double-phase technique, sensitivity and accuracy were higher in cases with no thyroid disease when compared to those with thyroid disease (92% and 86% vs. 88% and 69%, respectively). (springer.com)
  • Similarly, for digital subtraction, sensitivity and accuracy were higher in the absence of thyroid disease compared to their presence (84% and 79% vs. 70% and 58%, respectively). (springer.com)
  • Seventy-six eyes of 71 patients were used to generate subtraction maps that detected glaucoma progression in 87% of DH (n=31, Sensitivity (Se) 84%, Specificity (Sp) 98%) and 84% of PPA (n=32, Se 81%, Sp 98%) cases. (arvojournals.org)
  • Clinical
  • To demonstrate the use of this technique in a clinical context, we have measured blood flow waveforms in a patient immediately before and after percutaneous transluminal angiplasty of a stenosis in the superficial femoral artery. (ucl.ac.uk)
  • blood
  • We have validated the technique using an experimental phantom of blood circulation, consisting of a pump, flexible plastic tubing, the tubular probe of an electromagnetic flowereter (EMF) and a solenoid, to simulate a pulsatile flow waveform, which includes reverse flow. (ucl.ac.uk)