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Characterization of...
Characterization of Brown Adipose Tissue by Water-Fat Separated Magnetic Resonance Imaging
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- Romu, Thobias (författare)
- Linköpings universitet,Medicinsk informatik,Tekniska högskolan,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Elander, Louise (författare)
- Linköpings universitet,Avdelningen för cellbiologi,Medicinska fakulteten
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- Dahlqvist Leinhard, Olof (författare)
- Linköpings universitet,Avdelningen för radiologiska vetenskaper,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Radiofysikavdelningen US
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- Lidell, Martin, 1970 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk genetik och klinisk genetik,Institute of Biomedicine, Department of Medical and Clinical Genetics
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- Betz, Mattias J. (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk genetik och klinisk genetik,Institute of Biomedicine, Department of Medical and Clinical Genetics,Klinikum der Ludwig Maximilians University, Munich
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- Persson, Anders (författare)
- Linköpings universitet,Avdelningen för radiologiska vetenskaper,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Röntgenkliniken i Linköping
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- Enerbäck, Sven, 1958 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk genetik och klinisk genetik,Institute of Biomedicine, Department of Medical and Clinical Genetics
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- Borga, Magnus (författare)
- Linköpings universitet,Medicinsk informatik,Tekniska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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(creator_code:org_t)
- 2015-04-25
- 2015
- Engelska.
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Ingår i: Journal of Magnetic Resonance Imaging. - : Wiley. - 1053-1807 .- 1522-2586. ; 42:6, s. 1639-1645
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Background: To evaluate the possibility of quantifying brown adipose tissue (BAT) volume and fat concentration with a high resolution, long echo time, dual-echo Dixon imaging protocol. Methods: A 0.42 mm isotropic resolution water-fat separated MRI protocol was implemented by using the second opposite-phase echo and third in-phase echo. Fat images were calibrated with regard to the intensity of nearby white adipose tissue (WAT) to form relative fat content (RFC) images. To evaluate the ability to measure BAT volume and RFC contrast dynamics, rats were divided into two groups that were kept at 48 or 22 degrees C for 5 days. The rats were then scanned in a 70 cm bore 3.0 Tesla MRI scanner and a human dual energy CT. Interscapular, paraaortal, and perirenal BAT (i/pa/pr-BAT) depots as well as WAT and muscle were segmented in the MRI and CT images. Biopsies were collected from the identified BAT depots. Results: The biopsies confirmed that the three depots identified with the RFC images consisted of BAT. There was a significant linear correlation (P< 0.001) between the measured RFC and the Hounsfield units from DECT. Significantly lower iBAT RFC (P=0.0064) and significantly larger iBAT and prBAT volumes (P=0.0017) were observed in the cold stimulated rats. Conclusion: The calibrated Dixon images with RFC scaling can depict BAT and be used to measure differences in volume, and fat concentration, induced by cold stimulation. The high correlation between RFC and HU suggests that the fat concentration is the main RFC image contrast mechanism.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk bildbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Image Processing (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Nyckelord
- adult humans
- mri
- identification
- mice
- rat
- Radiology
- Nuclear Medicine & Medical Imaging
- Brown Adipose Tissue; BAT; Fat Water MRI
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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