http://www.k-wave.org/forum/topic/ultrasound-simulation-2d-field Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:10:25 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/ultrasound-simulation-2d-field#post-346 Fri, 02 Mar 2012 23:49:31 +0000 Bradley Treeby 346@http://www.k-wave.org/forum/ <p>Hi JJ,</p> <p>A 2D simulation inherently assumes that your wave-field is infinitely extended into the 3rd dimension. For example, a 2D point source is actually a line source in 3D. This means in 2D your pressure signals will decay with 1/sqrt(distance) rather than 1/distance. There's a little more information in <a href="http://www.k-wave.org/documentation/example_ivp_photoacoustic_waveforms.php">this example</a> in the context of photoacoustic sources, but most of these points also apply to ultrasound. </p> <p>I agree that simulations in 2D will be much faster. Indeed, many people use 2D models in the literature to simulate various effects. It depends on what aspects of the simulation are important to you, and what assumptions you can make.</p> <p>I hope that helps,</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/ultrasound-simulation-2d-field#post-343 Thu, 01 Mar 2012 06:38:53 +0000 jjiang 343@http://www.k-wave.org/forum/ <p>Dear members,<br /> I am new to this great toolbox. This is a quite naive question. In examples provided by the toolbox, 3D acoustic fields interact with linear arrays to generate 2D ultrasound fields. I am wondering whether or not I can use 2D fields to get some quick (dirty is fine for trial and error stage) results. Your advice is highly appreciated!<br /> Thanks so much for your help in advance!</p> <p>--JJ </p>