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2017 Fiscal Year Final Research Report

Magnetic particle imaging system with fast data acquisition and high image resolution

Research Project

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Project/Area Number 15H03038
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Medical systems
Research InstitutionMeiji University

Principal Investigator

Ishihara Yasutoshi  明治大学, 理工学部, 専任教授 (00377219)

Research Collaborator TAKAGI Tomoyuki  
HATSUDA Tomoki  
ARAYAMA Masahiro  
MATSUHISA Akihiro  
URUSHIBATA Satoshi  
KUZUHARA Ayane  
FUJITA Hiromitsu  
Project Period (FY) 2015-04-01 – 2018-03-31
Keywords画像診断装置 / 磁性ナノ粒子 / イメージング / MPI
Outline of Final Research Achievements

Diagnosing cancers and cardiovascular diseases at an early stage by magnetic particle imaging (MPI) has been expected. In MPI, however, strong gradient magnetic field strength is needed to obtain high image resolution. In this study, the new algorithm that can make image reconstruction of the image data acquired fast with high image resolution was proposed. The validity of the image reconstruction method was evaluated by numerical analysis, and satisfactory image quality was obtained compared with the conventional method. In addition, the two-dimensional MPI system was constructed and validity of the proposed image reconstruction method was clarified experimentally. Furthermore, the new signal acquisition method for detecting a magnetization signal by vibrating a magnetic nanoparticle without using an alternating current magnetic field was proposed, and the feasibility was shown.

Free Research Field

医用工学

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Published: 2019-03-29  

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