In vivo sodium MR imaging of the abdomen at 3T

Verfasser / Beitragende:
[Judy James, Anshuman Panda, Chen Lin, Ulrike Dydak, Brian Dale, Navin Bansal]
Ort, Verlag, Jahr:
2015
Enthalten in:
Abdominal Imaging, 40/7(2015-10-01), 2272-2280
Format:
Artikel (online)
ID: 605493251
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024 7 0 |a 10.1007/s00261-015-0428-6  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00261-015-0428-6 
245 0 0 |a In vivo sodium MR imaging of the abdomen at 3T  |h [Elektronische Daten]  |c [Judy James, Anshuman Panda, Chen Lin, Ulrike Dydak, Brian Dale, Navin Bansal] 
520 3 |a Purpose: Transmembrane sodium (23Na) gradient is critical for cell survival and viability and a target for the development of anti-cancer drugs and treatment as it serves as a signal transducer. The ability to integrate abdominal 23Na MRI in clinical settings would be useful to non-invasively detect and diagnose a number of diseases in various organ systems. Our goal in this work was to enhance the quality of 23Na MRI of the abdomen using a 3-Tesla MR scanner and a novel 8-channel phased-array dual-tuned 23Na and 1H transmit (Tx)/receive (Rx) coil specially designed to image a large abdomen region with relatively high SNR. Methods: A modified GRE imaging sequence was optimized for 23Na MRI to obtain the best possible combination of SNR, spatial resolution, and scan time in phantoms as well as volunteers. Tissue sodium concentration (TSC) of the whole abdomen was calculated from the inhomogeneity-corrected 23Na MRI for absolute quantification. In addition, in vivo reproducibility and reliability of TSC measurements from 23Na MRI was evaluated in normal volunteers. Results: 23Na axial images of the entire abdomen with a high spatial resolution (0.3cm) and SNR (~20) in 15min using the novel 8-channel dual-tuned 23Na and 1H transmit/receive coil were obtained. Quantitative analysis of the sodium images estimated a mean TSC of the liver to be 20.13mM in healthy volunteers. Conclusion: Our results have shown that it is feasible to obtain high-resolution 23Na images using a multi-channel surface coil with good SNR in clinically acceptable scan times in clinical practice for various body applications. 
540 |a Springer Science+Business Media New York, 2015 
690 7 |a Sodium  |2 nationallicence 
690 7 |a 3T  |2 nationallicence 
690 7 |a Clinical  |2 nationallicence 
690 7 |a Liver  |2 nationallicence 
690 7 |a Body imaging  |2 nationallicence 
690 7 |a Total sodium concentration  |2 nationallicence 
700 1 |a James  |D Judy  |u Department of Radiology, Mayo Clinic, 13400 E. Shea Blvd., 85259, Scottsdale, AZ, USA  |4 aut 
700 1 |a Panda  |D Anshuman  |u Department of Radiology, Mayo Clinic, 13400 E. Shea Blvd., 85259, Scottsdale, AZ, USA  |4 aut 
700 1 |a Lin  |D Chen  |u Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA  |4 aut 
700 1 |a Dydak  |D Ulrike  |u Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA  |4 aut 
700 1 |a Dale  |D Brian  |u Siemens Medical Solutions, MR R&D, Cary, NC, USA  |4 aut 
700 1 |a Bansal  |D Navin  |u Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA  |4 aut 
773 0 |t Abdominal Imaging  |d Springer US; http://www.springer-ny.com  |g 40/7(2015-10-01), 2272-2280  |x 0942-8925  |q 40:7<2272  |1 2015  |2 40  |o 261 
856 4 0 |u https://doi.org/10.1007/s00261-015-0428-6  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00261-015-0428-6  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a James  |D Judy  |u Department of Radiology, Mayo Clinic, 13400 E. Shea Blvd., 85259, Scottsdale, AZ, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Panda  |D Anshuman  |u Department of Radiology, Mayo Clinic, 13400 E. Shea Blvd., 85259, Scottsdale, AZ, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Lin  |D Chen  |u Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Dydak  |D Ulrike  |u Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Dale  |D Brian  |u Siemens Medical Solutions, MR R&D, Cary, NC, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Bansal  |D Navin  |u Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Abdominal Imaging  |d Springer US; http://www.springer-ny.com  |g 40/7(2015-10-01), 2272-2280  |x 0942-8925  |q 40:7<2272  |1 2015  |2 40  |o 261