A dedicated two-channel phased-array receiver coil for high-resolution MRI of the rat knee cartilage at 7 T
| Autor: | A. Rengle, Hervé Saint-Jalmes, Olivier Beuf, J.-C. Goebel, M. Armenean, Pierre Gillet, Astrid Pinzano-Watrin, Radu Bolbos |
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| Přispěvatelé: | Centre de Recherche et d'Application en Traitement de l'Image et du Signal (CREATIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Supérieure Chimie Physique Électronique de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Physiopathologie, Pharmacologie et Ingénierie articulaires (PPIA), Université Henri Poincaré - Nancy 1 (UHP)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Traitement du Signal et de l'Image (LTSI), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université de Lyon-Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Cartilage
Articular Phased array [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging MESH: Equipment Failure Analysis 02 engineering and technology Knee Joint 030218 nuclear medicine & medical imaging MESH: Magnetic Resonance Imaging 0302 clinical medicine Data acquisition rat cartilage morphology [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing MESH: Animals Image resolution medicine.diagnostic_test MESH: Hindlimb Equipment Design Magnetic Resonance Imaging Knee cartilage Hindlimb MESH: Reproducibility of Results high-resolution MRI (HR-MRI) [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV] [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph] Computer-Aided Design [SDV.IB]Life Sciences [q-bio]/Bioengineering MESH: Image Enhancement [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing MESH: Transducers Materials science Channel (digital image) MESH: Rats 0206 medical engineering Transducers Biomedical Engineering Sensitivity and Specificity multiple acquisitions 03 medical and health sciences Magnetics medicine [INFO.INFO-IM]Computer Science [cs]/Medical Imaging Animals MESH: Magnetics phased-array coil [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] Reproducibility of Results MESH: Computer-Aided Design Magnetic resonance imaging Image Enhancement 020601 biomedical engineering MESH: Sensitivity and Specificity Rats Equipment Failure Analysis High magnetic field strength Signal-to-noise ratio (imaging) MESH: Cartilage Articular [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology Biomedical engineering MESH: Equipment Design |
| Zdroj: | IEEE Transactions on Biomedical Engineering IEEE Transactions on Biomedical Engineering, Institute of Electrical and Electronics Engineers, 2009, 56 (12), pp.2891-2897. ⟨10.1109/TBME.2008.2006015⟩ IEEE Transactions on Biomedical Engineering, 2009, 56 (12), pp.2891-2897. ⟨10.1109/TBME.2008.2006015⟩ |
| ISSN: | 0018-9294 |
| DOI: | 10.1109/TBME.2008.2006015⟩ |
| Popis: | International audience; In the field of small animal studies, the array coil imaging has become increasingly important. In this paper, a dedicated two-channel array coil operating at 300 MHz (7 T) for high-resolution MRI (HR-MRI) of the rat knee cartilage is presented. The average gain in signal-to-noise ratio (SNR) compared to a 15-mm multipurpose surface coil was 2.2. This SNR gain was used to improve the spatial resolution of 3-D acquisitions by decreasing the voxel size from 59 x 59 x 156 microm(3) to 51 x 51 x 94 microm(3) without time penalty. Also, a set of two array coils was used to perform a simultaneous acquisition of both knee joints of a rat, maintaining the same scanning time without SNR or spatial resolution degradation compared to the single knee joint acquisition. This two-channel array coil is a key element to perform HR-MRI and extract cartilage morphological parameters such as thickness and volume. |
| Databáze: | OpenAIRE |
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