Design of miniatured MRI coils for MRI‐guided tumor diagnosis and hyperthermia therapy

Author:

Karuppanan Sakthisudhan1ORCID,V R Vinothini2ORCID,Narasimman Saranraj3,Chenguttuvan Ezhilazhagan4ORCID

Affiliation:

1. Department of ECE Dr. N.G.P. Institute of Technology Coimbatore India

2. Bannari Amman Institute of Technology Erode India

3. Research Scholar Anna University Chennai India

4. Vel Tech Rangarajan Dr. Sakunthala R&D Institute of Science and Technology Chennai India

Abstract

AbstractIn this paper, the researchers offer a miniatured design of microstrip lines based on magnetic resonance imaging (MRI) coils that can be utilized to detect tumor tissues and to restore those tissues after radiotherapy. A 61.67% reduction in size was achieved in the MRI array dimensions when compared to the previously reported MRI coils. The reliability of the design specifications was verified. The proposed MRI coils could contribute two resonant modes. Primarily, these MRI coils were suitable for homogenous magnetic field and they enable radio frequency (RF) heating by generating a concentrated electric field |E|. The collective temperature and specific absorption ratio (SAR) have been estimated at Larmor frequency. In this study, it was possible to create a uniform magnetic flux density |B1| field operating at 500 MHz. These proposed coils were excited at 8.06 GHz. When simulating cancer in a biological system, healthy tissues were introduced into a Class A scenario and malignant tissues were introduced into a Class B scenario. According to these two scenarios, tumor tissues were magnetically (|B1|) homogeneous with a 44.1% standard deviation with rapidly raised temperature at 4.77°C. These MRI coils delivered an impact on diagnostic imaging and parallelly restored the cancerous tissues by hyperthermia.

Publisher

Wiley

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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