|
ИСТИНА |
Войти в систему Регистрация |
ФНКЦ РР |
||
Method for designing multielement fully populated random phased arrays for ultrasound surgery applicationsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 мая 2018 г.
- Авторы: Rosnitskiy P.B., Vysokanov B.A., Gavrilov L.R., Sapozhnikov O.A., Khokhlova V.A.
- Журнал: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
- Том: 65
- Номер: 4
- Год издания: 2018
- Издательство: Institute of Electrical and Electronics Engineers
- Местоположение издательства: Piscataway, NJ, United States
- Первая страница: 630
- Последняя страница: 637
- DOI: 10.1109/TUFFC.2018.2800160
- Аннотация: Maximizing the power of multielement phased arrays is a critical factor for high-intensity focused ultrasound (HIFU) applications such as histotripsy and transcostal sonications. This can be achieved by a tight packing of the array elements. Good electronic focusing capabilities are also required. Currently used quasi-random arrays with a relatively low filling factor of about 60% have this focusing ability. Here, a novel method of designing random HIFU arrays with the maximum possible filling factor (100% if no gaps between elements needed in practice are introduced) and polygonal elements of equal area and slightly different shapes based on the capacity-constrained tessellation is described. The method is validated by comparing designs of two arrays with the same geometric and physical parameters: an existing 256-element array with a compact 16-spirals layout of circular elements and the proposed array with the maximum possible filling factor. Introduction of a 0.5-mm gap between the elements of the new array resulted in a reduction of its filling factor to 86%, as compared with 61% for the spiral array. It is shown that for the same intensity at the elements, the proposed array provides two times higher total power while maintaining the same electronic focusing capabilities as compared to the spiral one. Furthermore, the surface of the capacity-constrained tessellation array, its boundary, and a central opening can have arbitrary shapes.
- Добавил в систему: Росницкий Павел Борисович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 08276652.pdf | 2,0 МБ | 4 апреля 2018 [Rosnitskiy] |