Gadospin F—Enhanced Magnetic Resonance Imaging for Diagnosis and Monitoring of Atherosclerosis: Validation with Transmission Electron Microscopy and X-Ray Fluorescence Imaging in the Apolipoprotein E—Deficient Mouse
The aim of this study was to investigate the feasibility of noninvasive monitoring of plaque burden in apolipoprotein E–deficient (ApoE −/− ) mice by Gadospin F (GDF)-enhanced magnetic resonance imaging (MRI). Gadolinium uptake in plaques was controlled using transmission electron microscopy (TEM) a...
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| Language: | English |
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SAGE Publishing
2015-01-01
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| Series: | Molecular Imaging |
| Online Access: | https://doi.org/10.2310/7290.2014.00039 |
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| author | Caroline Jung Tanja Dučić Rudolph Reimer Eva Koziolek Fabian Kording Markus Heine Gerhard Adam Harald Ittrich Michael G. Kaul |
| author_facet | Caroline Jung Tanja Dučić Rudolph Reimer Eva Koziolek Fabian Kording Markus Heine Gerhard Adam Harald Ittrich Michael G. Kaul |
| author_sort | Caroline Jung |
| collection | DOAJ |
| description | The aim of this study was to investigate the feasibility of noninvasive monitoring of plaque burden in apolipoprotein E–deficient (ApoE −/− ) mice by Gadospin F (GDF)-enhanced magnetic resonance imaging (MRI). Gadolinium uptake in plaques was controlled using transmission electron microscopy (TEM) and x-ray fluorescence (XRF) microscopy. To monitor the progression of atherosclerosis, ApoE −/− ( n = 5) and wild-type ( n = 2) mice were fed a Western diet and imaged at 5, 10, 15, and 20 weeks. Contrast-enhanced MRI was performed at 7 T Clinscan (Bruker, Ettlingen, Germany) before and 2 hours after intravenous injection of GDF (100 μmol/kg) to determine the blood clearance. Plaque size and contrast to noise ratio (CNR) were calculated for each time point using region of interest measurements to evaluate plaque progression. Following MRI, aortas were excised and GDF uptake was cross-validated by TEM and XRF microscopy. The best signal enhancement in aortic plaque was achieved 2 hours after application of GDF. No signal differences between pre- and postcontrast MRI were detectable in wild-type mice. We observed a gradual and considerable increase in plaque CNR and size for the different disease stages. TEM and XRF microscopy confirmed the localization of GDF within the plaque. GDF-enhanced MRI allows noninvasive and reliable estimation of plaque burden and monitoring of atherosclerotic progression in vivo. |
| format | Article |
| id | doaj-art-bd4493eb2ccb40b5ae9ffb5eada1a7ad |
| institution | Kabale University |
| issn | 1536-0121 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | SAGE Publishing |
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| series | Molecular Imaging |
| spelling | doaj-art-bd4493eb2ccb40b5ae9ffb5eada1a7ad2025-02-03T10:08:10ZengSAGE PublishingMolecular Imaging1536-01212015-01-011410.2310/7290.2014.0003910.2310_7290.2014.00039Gadospin F—Enhanced Magnetic Resonance Imaging for Diagnosis and Monitoring of Atherosclerosis: Validation with Transmission Electron Microscopy and X-Ray Fluorescence Imaging in the Apolipoprotein E—Deficient MouseCaroline JungTanja DučićRudolph ReimerEva KoziolekFabian KordingMarkus HeineGerhard AdamHarald IttrichMichael G. KaulThe aim of this study was to investigate the feasibility of noninvasive monitoring of plaque burden in apolipoprotein E–deficient (ApoE −/− ) mice by Gadospin F (GDF)-enhanced magnetic resonance imaging (MRI). Gadolinium uptake in plaques was controlled using transmission electron microscopy (TEM) and x-ray fluorescence (XRF) microscopy. To monitor the progression of atherosclerosis, ApoE −/− ( n = 5) and wild-type ( n = 2) mice were fed a Western diet and imaged at 5, 10, 15, and 20 weeks. Contrast-enhanced MRI was performed at 7 T Clinscan (Bruker, Ettlingen, Germany) before and 2 hours after intravenous injection of GDF (100 μmol/kg) to determine the blood clearance. Plaque size and contrast to noise ratio (CNR) were calculated for each time point using region of interest measurements to evaluate plaque progression. Following MRI, aortas were excised and GDF uptake was cross-validated by TEM and XRF microscopy. The best signal enhancement in aortic plaque was achieved 2 hours after application of GDF. No signal differences between pre- and postcontrast MRI were detectable in wild-type mice. We observed a gradual and considerable increase in plaque CNR and size for the different disease stages. TEM and XRF microscopy confirmed the localization of GDF within the plaque. GDF-enhanced MRI allows noninvasive and reliable estimation of plaque burden and monitoring of atherosclerotic progression in vivo.https://doi.org/10.2310/7290.2014.00039 |
| spellingShingle | Caroline Jung Tanja Dučić Rudolph Reimer Eva Koziolek Fabian Kording Markus Heine Gerhard Adam Harald Ittrich Michael G. Kaul Gadospin F—Enhanced Magnetic Resonance Imaging for Diagnosis and Monitoring of Atherosclerosis: Validation with Transmission Electron Microscopy and X-Ray Fluorescence Imaging in the Apolipoprotein E—Deficient Mouse Molecular Imaging |
| title | Gadospin F—Enhanced Magnetic Resonance Imaging for Diagnosis and Monitoring of Atherosclerosis: Validation with Transmission Electron Microscopy and X-Ray Fluorescence Imaging in the Apolipoprotein E—Deficient Mouse |
| title_full | Gadospin F—Enhanced Magnetic Resonance Imaging for Diagnosis and Monitoring of Atherosclerosis: Validation with Transmission Electron Microscopy and X-Ray Fluorescence Imaging in the Apolipoprotein E—Deficient Mouse |
| title_fullStr | Gadospin F—Enhanced Magnetic Resonance Imaging for Diagnosis and Monitoring of Atherosclerosis: Validation with Transmission Electron Microscopy and X-Ray Fluorescence Imaging in the Apolipoprotein E—Deficient Mouse |
| title_full_unstemmed | Gadospin F—Enhanced Magnetic Resonance Imaging for Diagnosis and Monitoring of Atherosclerosis: Validation with Transmission Electron Microscopy and X-Ray Fluorescence Imaging in the Apolipoprotein E—Deficient Mouse |
| title_short | Gadospin F—Enhanced Magnetic Resonance Imaging for Diagnosis and Monitoring of Atherosclerosis: Validation with Transmission Electron Microscopy and X-Ray Fluorescence Imaging in the Apolipoprotein E—Deficient Mouse |
| title_sort | gadospin f enhanced magnetic resonance imaging for diagnosis and monitoring of atherosclerosis validation with transmission electron microscopy and x ray fluorescence imaging in the apolipoprotein e deficient mouse |
| url | https://doi.org/10.2310/7290.2014.00039 |
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