Minimum Representative Human Body Model Size Determination for Link Budget Calculation in Implanted Medical Devices

In this work, the optimum homogeneous phantom size for an equivalent whole-body electromagnetic (EM) modeling is calculated. This will enable the simple characterization of plane wave EM attenuation and far-field link budgets in Active Medical Implant (AMI) applications in the core region of the bod...

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Main Authors: Iñaki Ortego-Isasa, Ainhoa Rezola, Yue Gao, Xiaodong Chen, Daniel Valderas
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/13/6032
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author Iñaki Ortego-Isasa
Ainhoa Rezola
Yue Gao
Xiaodong Chen
Daniel Valderas
author_facet Iñaki Ortego-Isasa
Ainhoa Rezola
Yue Gao
Xiaodong Chen
Daniel Valderas
author_sort Iñaki Ortego-Isasa
collection DOAJ
description In this work, the optimum homogeneous phantom size for an equivalent whole-body electromagnetic (EM) modeling is calculated. This will enable the simple characterization of plane wave EM attenuation and far-field link budgets in Active Medical Implant (AMI) applications in the core region of the body for Industrial, Scientific, Medical and MedRadio frequency bands. A computational analysis is done to determine the optimum size in which a minimum phantom size reliably represents a whole-body situation for the corresponding frequency of operation, saving computer and laboratory resources. After the definition of a converge criterion, the computed minimum phantom size for subcutaneous applications, 0–10 mm insertion depth, is 355 × 160 × 255 mm<sup>3</sup> for 402 MHz and 868 MHz and a cube with a side of 100 mm and 50 mm for 2.45 GHz and 5.8 GHz, respectively. For deep AMI applications, 10–50 mm insertion depth, the dimensions are 355 × 260 × 255 mm<sup>3</sup> for 402 MHz and 868 MHz, and a cube with a side of 200 mm and 150 mm for 2.45 GHz and 5.8 GHz, respectively. A significant reduction in both computational and manufacturing resources for phantom development is thereby achieved. The verification of the model is performed by field measurements in phantoms made by aqueous solutions with sugar.
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spelling doaj.art-162a0978c8654924ab1f483ad6ac06492023-11-22T02:10:47ZengMDPI AGApplied Sciences2076-34172021-06-011113603210.3390/app11136032Minimum Representative Human Body Model Size Determination for Link Budget Calculation in Implanted Medical DevicesIñaki Ortego-Isasa0Ainhoa Rezola1Yue Gao2Xiaodong Chen3Daniel Valderas4TECNALIA, Basque Research and Technology Alliance (BRTA), Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián, SpainDepartment of Electrical and Electronic Engineering, TECNUN, University of Navarra, Mikeletegi Pasealekua 48, 20009 Donostia-San Sebastián, SpainInstitute for Communication Systems/5GIC/6GIC, School of Computer Science and Electronic Engineering, University of Surrey, Guildford GU2 7XH, UKSchool of Electronic Engineering and Computer Science, Queen Mary University of London, Mile End Rd, Bethnal Green, London E1 4NS, UKDepartment of Electrical and Electronic Engineering, TECNUN, University of Navarra, Mikeletegi Pasealekua 48, 20009 Donostia-San Sebastián, SpainIn this work, the optimum homogeneous phantom size for an equivalent whole-body electromagnetic (EM) modeling is calculated. This will enable the simple characterization of plane wave EM attenuation and far-field link budgets in Active Medical Implant (AMI) applications in the core region of the body for Industrial, Scientific, Medical and MedRadio frequency bands. A computational analysis is done to determine the optimum size in which a minimum phantom size reliably represents a whole-body situation for the corresponding frequency of operation, saving computer and laboratory resources. After the definition of a converge criterion, the computed minimum phantom size for subcutaneous applications, 0–10 mm insertion depth, is 355 × 160 × 255 mm<sup>3</sup> for 402 MHz and 868 MHz and a cube with a side of 100 mm and 50 mm for 2.45 GHz and 5.8 GHz, respectively. For deep AMI applications, 10–50 mm insertion depth, the dimensions are 355 × 260 × 255 mm<sup>3</sup> for 402 MHz and 868 MHz, and a cube with a side of 200 mm and 150 mm for 2.45 GHz and 5.8 GHz, respectively. A significant reduction in both computational and manufacturing resources for phantom development is thereby achieved. The verification of the model is performed by field measurements in phantoms made by aqueous solutions with sugar.https://www.mdpi.com/2076-3417/11/13/6032electromagnetic propagation in absorbing mediabiomedical applications of electromagnetic radiationbiomedical computingbiomedical measurementsimplantable biomedical devices
spellingShingle Iñaki Ortego-Isasa
Ainhoa Rezola
Yue Gao
Xiaodong Chen
Daniel Valderas
Minimum Representative Human Body Model Size Determination for Link Budget Calculation in Implanted Medical Devices
Applied Sciences
electromagnetic propagation in absorbing media
biomedical applications of electromagnetic radiation
biomedical computing
biomedical measurements
implantable biomedical devices
title Minimum Representative Human Body Model Size Determination for Link Budget Calculation in Implanted Medical Devices
title_full Minimum Representative Human Body Model Size Determination for Link Budget Calculation in Implanted Medical Devices
title_fullStr Minimum Representative Human Body Model Size Determination for Link Budget Calculation in Implanted Medical Devices
title_full_unstemmed Minimum Representative Human Body Model Size Determination for Link Budget Calculation in Implanted Medical Devices
title_short Minimum Representative Human Body Model Size Determination for Link Budget Calculation in Implanted Medical Devices
title_sort minimum representative human body model size determination for link budget calculation in implanted medical devices
topic electromagnetic propagation in absorbing media
biomedical applications of electromagnetic radiation
biomedical computing
biomedical measurements
implantable biomedical devices
url https://www.mdpi.com/2076-3417/11/13/6032
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