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Medical & Biological Engineering & Computing

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01.12.2008 | Original Article

MRI-based anatomical model of the human head for specific absorption rate mapping

verfasst von: Nikos Makris, Leonardo Angelone, Seann Tulloch, Scott Sorg, Jonathan Kaiser, David Kennedy, Giorgio Bonmassar

Erschienen in: Medical & Biological Engineering & Computing | Ausgabe 12/2008

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Abstract

In this study, we present a magnetic resonance imaging (MRI)-based, high-resolution, numerical model of the head of a healthy human subject. In order to formulate the model, we performed quantitative volumetric segmentation on the human head, using T1-weighted MRI. The high spatial resolution used (1 × 1 × 1 mm³), allowed for the precise computation and visualization of a higher number of anatomical structures than provided by previous models. Furthermore, the high spatial resolution allowed us to study individual thin anatomical structures of clinical relevance not visible by the standard model currently adopted in computational bioelectromagnetics. When we computed the electromagnetic field and specific absorption rate (SAR) at 7 Tesla MRI using this high-resolution model, we were able to obtain a detailed visualization of such fine anatomical structures as the epidermis/dermis, bone structures, bone-marrow, white matter and nasal and eye structures.

Vorheriger Artikel Fetal ultrasound image segmentation system and its use in fetal weight estimation

Nächster Artikel A 3D kinematic estimation of knee prosthesis using X-ray projection images: clinical assessment of the improved algorithm for fluoroscopy images

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Titel: MRI-based anatomical model of the human head for specific absorption rate mapping
verfasst von: Nikos Makris
Leonardo Angelone
Seann Tulloch
Scott Sorg
Jonathan Kaiser
David Kennedy
Giorgio Bonmassar
Publikationsdatum: 01.12.2008
Verlag: Springer-Verlag
Erschienen in: Medical & Biological Engineering & Computing / Ausgabe 12/2008
Print ISSN: 0140-0118
Elektronische ISSN: 1741-0444
DOI: https://doi.org/10.1007/s11517-008-0414-z

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