Evaluation and Correction of B^+-Based Brain Subject-Specific SAR Maps Using Electrical Properties Tomography

• Published in: IEEE journal of electromagnetics, RF and microwaves in medicine and biology Vol. 7; no. 2; pp. 168 - 175
• Main Authors: Martinez, Jessica A., Arduino, Alessandro, Bottauscio, Oriano, Zilberti, Luca
• Format: Journal Article
• Language: English
• Published: IEEE 01.06.2023
• Subjects: <named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> B_{1}</tex-math> </inline-formula> </named-content>-mapping; Ampère's law; Conductivity; electrical conductivity mapping; electrical-properties tomography; Grey matter; Head; head-SAR maps; Magnetic resonance imaging; Signal to noise ratio; specific absorption rate; White matter

The specific absorption rate (SAR) estimates the amount of power absorbed by the tissue and is determined by the electrical conductivity and the E-field. Conductivity can be estimated using Electric Properties Tomography (EPT) but only the E-field component associated with <inline-formula><...