دورية أكاديمية
Benchmark problems for transcranial ultrasound simulation: Intercomparison of compressional wave models
| العنوان: | Benchmark problems for transcranial ultrasound simulation: Intercomparison of compressional wave models |
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| المؤلفون: | Aubry, Jean-Francois, Bates, Oscar, Boehm, Christian, Pauly, Kim Butts, Christensen, Douglas, Cueto, Carlos, Gélat, Pierre, Guasch, Lluis, Jaros, Jiri, Jing, Yun, Jones, Rebecca, Li, Ningrui, Marty, Patrick, Montanaro, Hazael, Neufeld, Esra, Pichardo, Samuel, Pinton, Gianmarco, Pulkkinen, Aki, Stanziola, Antonio, Thielscher, Axel |
| المصدر: | The Journal of the Acoustical Society of America, 152 (2) |
| بيانات النشر: | Acoustical Society of America |
| سنة النشر: | 2022 |
| المجموعة: | ETH Zürich Research Collection |
| مصطلحات موضوعية: | Materials properties, Acoustic beamforming, Ultrasound, Acoustic wave propagation, Computational models, Hydrophone, Vector fields, Wave mechanics, MATLAB, Acoustic therapy |
| الوصف: | Computational models of acoustic wave propagation are frequently used in transcranial ultrasound therapy, for example, to calculate the intracranial pressure field or to calculate phase delays to correct for skull distortions. To allow intercomparison between the different modeling tools and techniques used by the community, an international working group was convened to formulate a set of numerical benchmarks. Here, these benchmarks are presented, along with intercomparison results. Nine different benchmarks of increasing geometric complexity are defined. These include a single-layer planar bone immersed in water, a multi-layer bone, and a whole skull. Two transducer configurations are considered (a focused bowl and a plane piston operating at 500 kHz), giving a total of 18 permutations of the benchmarks. Eleven different modeling tools are used to compute the benchmark results. The models span a wide range of numerical techniques, including the finite-difference time-domain method, angular spectrum method, pseudospectral method, boundary-element method, and spectral-element method. Good agreement is found between the models, particularly for the position, size, and magnitude of the acoustic focus within the skull. When comparing results for each model with every other model in a cross-comparison, the median values for each benchmark for the difference in focal pressure and position are less than 10% and 1 mm, respectively. The benchmark definitions, model results, and intercomparison codes are freely available to facilitate further comparisons. ; ISSN:0001-4966 ; ISSN:1520-8524 |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/application/pdf |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/000841281700001; http://hdl.handle.net/20.500.11850/566568Test |
| DOI: | 10.3929/ethz-b-000566568 |
| الإتاحة: | https://doi.org/20.500.11850/566568Test https://doi.org/10.3929/ethz-b-000566568Test https://doi.org/10.1121/10.0013426Test https://hdl.handle.net/20.500.11850/566568Test |
| حقوق: | info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0Test/ ; Creative Commons Attribution 4.0 International |
| رقم الانضمام: | edsbas.3F8701E0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3929/ethz-b-000566568 |
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