Temperature elevation vs. time generated by a focused Gausssian ultrasound beam in the presence of contrast agents has been calculated using a perfect absorbing disc model. The results suggest that, if the contrast agent (Albunex) is introduced into the body intravenously, the temperature rise in th
Feasibility of second-generation ultrasound contrast media in the detection of active sacroiliitis
✍ Scribed by Klauser, Andrea S. ;De Zordo, Tobias ;Bellmann-Weiler, Rosa ;Feuchtner, Gudrun M. ;Sailer-Höck, Michaela ;Sögner, Peter ;Gruber, Johann
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 295 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0004-3591
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## Abstract A time‐domain nonlinear model representing the propagation of ultra‐short optical pulses in dispersive materials containing second order nonlinearity is presented. The model accounts for material dispersion through Lorentz model in addition to the spatiotemporal coupling between the pul
Objective. To determine the value of microbubble contrast agents for color Doppler ultrasound (CDUS) compared with magnetic resonance imaging (MRI) in the detection of active sacroiliitis. Methods. An observational case-control study of 103 consecutive patients (206 sacroiliac [SI] joints) with infl