Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner

Abstract Magnetic Resonance Imaging (MRI) of hard biological tissues is challenging due to the fleeting lifetime and low strength of their response to resonant stimuli, especially at low magnetic fields. Consequently, the impact of MRI on some medical applications, such as dentistry, continues to be...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	José M. Algarín, Elena Díaz-Caballero, José Borreguero, Fernando Galve, Daniel Grau-Ruiz, Juan P. Rigla, Rubén Bosch, José M. González, Eduardo Pallás, Miguel Corberán, Carlos Gramage, Santiago Aja-Fernández, Alfonso Ríos, José M. Benlloch, Joseba Alonso
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bc3995d349aa401aa9a6988efd1135f3
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:bc3995d349aa401aa9a6988efd1135f3
record_format	dspace
spelling	oai:doaj.org-article:bc3995d349aa401aa9a6988efd1135f32021-12-02T15:11:51ZSimultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner10.1038/s41598-020-78456-22045-2322https://doaj.org/article/bc3995d349aa401aa9a6988efd1135f32020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78456-2https://doaj.org/toc/2045-2322Abstract Magnetic Resonance Imaging (MRI) of hard biological tissues is challenging due to the fleeting lifetime and low strength of their response to resonant stimuli, especially at low magnetic fields. Consequently, the impact of MRI on some medical applications, such as dentistry, continues to be limited. Here, we present three-dimensional reconstructions of ex-vivo human teeth, as well as a rabbit head and part of a cow femur, all obtained at a field strength of 260 mT. These images are the first featuring soft and hard tissues simultaneously at sub-Tesla fields, and they have been acquired in a home-made, special-purpose, pre-medical MRI scanner designed with the goal of demonstrating dental imaging at low field settings. We encode spatial information with two pulse sequences: Pointwise-Encoding Time reduction with Radial Acquisition and a new sequence we have called Double Radial Non-Stop Spin Echo, which we find to perform better than the former. For image reconstruction we employ Algebraic Reconstruction Techniques (ART) as well as standard Fourier methods. An analysis of the resulting images shows that ART reconstructions exhibit a higher signal-to-noise ratio with a more homogeneous noise distribution.José M. AlgarínElena Díaz-CaballeroJosé BorregueroFernando GalveDaniel Grau-RuizJuan P. RiglaRubén BoschJosé M. GonzálezEduardo PallásMiguel CorberánCarlos GramageSantiago Aja-FernándezAlfonso RíosJosé M. BenllochJoseba AlonsoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q José M. Algarín Elena Díaz-Caballero José Borreguero Fernando Galve Daniel Grau-Ruiz Juan P. Rigla Rubén Bosch José M. González Eduardo Pallás Miguel Corberán Carlos Gramage Santiago Aja-Fernández Alfonso Ríos José M. Benlloch Joseba Alonso Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner
description	Abstract Magnetic Resonance Imaging (MRI) of hard biological tissues is challenging due to the fleeting lifetime and low strength of their response to resonant stimuli, especially at low magnetic fields. Consequently, the impact of MRI on some medical applications, such as dentistry, continues to be limited. Here, we present three-dimensional reconstructions of ex-vivo human teeth, as well as a rabbit head and part of a cow femur, all obtained at a field strength of 260 mT. These images are the first featuring soft and hard tissues simultaneously at sub-Tesla fields, and they have been acquired in a home-made, special-purpose, pre-medical MRI scanner designed with the goal of demonstrating dental imaging at low field settings. We encode spatial information with two pulse sequences: Pointwise-Encoding Time reduction with Radial Acquisition and a new sequence we have called Double Radial Non-Stop Spin Echo, which we find to perform better than the former. For image reconstruction we employ Algebraic Reconstruction Techniques (ART) as well as standard Fourier methods. An analysis of the resulting images shows that ART reconstructions exhibit a higher signal-to-noise ratio with a more homogeneous noise distribution.
format	article
author	José M. Algarín Elena Díaz-Caballero José Borreguero Fernando Galve Daniel Grau-Ruiz Juan P. Rigla Rubén Bosch José M. González Eduardo Pallás Miguel Corberán Carlos Gramage Santiago Aja-Fernández Alfonso Ríos José M. Benlloch Joseba Alonso
author_facet	José M. Algarín Elena Díaz-Caballero José Borreguero Fernando Galve Daniel Grau-Ruiz Juan P. Rigla Rubén Bosch José M. González Eduardo Pallás Miguel Corberán Carlos Gramage Santiago Aja-Fernández Alfonso Ríos José M. Benlloch Joseba Alonso
author_sort	José M. Algarín
title	Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner
title_short	Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner
title_full	Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner
title_fullStr	Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner
title_full_unstemmed	Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner
title_sort	simultaneous imaging of hard and soft biological tissues in a low-field dental mri scanner
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/bc3995d349aa401aa9a6988efd1135f3
work_keys_str_mv	AT josemalgarin simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT elenadiazcaballero simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT joseborreguero simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT fernandogalve simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT danielgrauruiz simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT juanprigla simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT rubenbosch simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT josemgonzalez simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT eduardopallas simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT miguelcorberan simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT carlosgramage simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT santiagoajafernandez simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT alfonsorios simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT josembenlloch simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner AT josebaalonso simultaneousimagingofhardandsoftbiologicaltissuesinalowfielddentalmriscanner
_version_	1718387656679751680

Simultaneous imaging of hard and soft biological tissues in a low-field dental MRI scanner

Ejemplares similares