NDLI: A sparse-element phased array system based on sequentially multiple focusing for the treatment of large tumors

Content Provider	IEEE Xplore Digital Library
Author	Mun-Bo Shim Sung-Jin Kim
Copyright Year	2014
Description	Author affiliation: Samsung Adv. Inst. of Technol., Samsung Electron. Co. Ltd., Suwon, South Korea (Mun-Bo Shim; Sung-Jin Kim)
Abstract	The purpose of this study is the optimal design on High Intensity Focused Ultrasound transducer architecture with sparse-element to reduce the number of RF driving channels required for practical implementation for cost- and time-effective HIFU treatment of tumors. For rapid treatment of large-sized tumor while protecting healthy tissues, volumetric ablation by multiple focusing is one of the promising solutions, which does not require mechanical or electrical beam steering to move focus within a focal area. In the previous study, a numerical optimization with a 1017-element spherical-section ultrasound phased array transducer operating at a frequency of 1.0MHz with 16 cm radius of curvature was performed for the generation of multiple foci. The ultimate design of the current study is the sparse array so as to reduce the number of driving channels and cut down the cost. It is necessary that this design with less number of elements and driving channels shows similar sonication effect with the full array. The distribution of the reduced number of elements in the sparse array can be optimized by the incorporation of genetic algorithms to achieve acceptable properties for the radiation pattern. The simulation results of the optimized sparse array showed that the suggested distributional pattern of phased array achieved a well-defined focal zone with multiple foci at the aimed area. In conclusion, a sparse array can benefit from the reduction of the number of driving channels to achieve similar sonication effect with the full array.
Starting Page	2615
Ending Page	2618
File Size	1396990
Page Count	4
File Format	PDF
e-ISBN	9781479970490
DOI	10.1109/ULTSYM.2014.0653
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Transducers Tumors Gratings Ultrasonic imaging Acoustics Surface treatment Therapeutic transducer High Intensity Focused Ultrasound (HIFU) Multiple focusing Sparse array
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in