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Cardiac chamber quantification using magnetic resonance imaging at 7 Tesla--a pilot study.

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Title: Cardiac chamber quantification using magnetic resonance imaging at 7 Tesla--a pilot study.
Authors: von Knobelsdorff-Brenkenhoff F (AUTHOR), Frauenrath T (AUTHOR), Prothmann M (AUTHOR), Dieringer MA (AUTHOR), Hezel F (AUTHOR), Renz W (AUTHOR), Kretschel K (AUTHOR), Niendorf T (AUTHOR), Schulz-Menger J (AUTHOR), von Knobelsdorff-Brenkenhoff, Florian1 (AUTHOR), Frauenrath, Tobias (AUTHOR), Prothmann, Marcel (AUTHOR), Dieringer, Matthias A (AUTHOR), Hezel, Fabian (AUTHOR), Renz, Wolfgang (AUTHOR), Kretschel, Kerstin (AUTHOR), Niendorf, Thoralf (AUTHOR), Schulz-Menger, Jeanette (AUTHOR)
Source: European Radiology. Dec2010, Vol. 20 Issue 12, p2844-2852. 9p.
Abstract: Objectives: Interest in cardiovascular magnetic resonance (CMR) at 7 T is motivated by the expected increase in spatial and temporal resolution, but the method is technically challenging. We examined the feasibility of cardiac chamber quantification at 7 T.Methods: A stack of short axes covering the left ventricle was obtained in nine healthy male volunteers. At 1.5 T, steady-state free precession (SSFP) and fast gradient echo (FGRE) cine imaging with 7 mm slice thickness (STH) were used. At 7 T, FGRE with 7 mm and 4 mm STH were applied. End-diastolic volume, end-systolic volume, ejection fraction and mass were calculated.Results: All 7 T examinations provided excellent blood/myocardium contrast for all slice directions. No significant difference was found regarding ejection fraction and cardiac volumes between SSFP at 1.5 T and FGRE at 7 T, while volumes obtained from FGRE at 1.5 T were underestimated. Cardiac mass derived from FGRE at 1.5 and 7 T was larger than obtained from SSFP at 1.5 T. Agreement of volumes and mass between SSFP at 1.5 T and FGRE improved for FGRE at 7 T when combined with an STH reduction to 4 mm.Conclusions: This pilot study demonstrates that cardiac chamber quantification at 7 T using FGRE is feasible and agrees closely with SSFP at 1.5 T. [ABSTRACT FROM AUTHOR]
Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Cardiac chamber quantification using magnetic resonance imaging at 7 Tesla--a pilot study.
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  Data: <searchLink fieldCode="AR" term="%22von+Knobelsdorff-Brenkenhoff+F%22">von Knobelsdorff-Brenkenhoff F</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Frauenrath+T%22">Frauenrath T</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Prothmann+M%22">Prothmann M</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dieringer+MA%22">Dieringer MA</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hezel+F%22">Hezel F</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Renz+W%22">Renz W</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kretschel+K%22">Kretschel K</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Niendorf+T%22">Niendorf T</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schulz-Menger+J%22">Schulz-Menger J</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22von+Knobelsdorff-Brenkenhoff%2C+Florian%22">von Knobelsdorff-Brenkenhoff, Florian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Frauenrath%2C+Tobias%22">Frauenrath, Tobias</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Prothmann%2C+Marcel%22">Prothmann, Marcel</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dieringer%2C+Matthias+A%22">Dieringer, Matthias A</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hezel%2C+Fabian%22">Hezel, Fabian</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Renz%2C+Wolfgang%22">Renz, Wolfgang</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kretschel%2C+Kerstin%22">Kretschel, Kerstin</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Niendorf%2C+Thoralf%22">Niendorf, Thoralf</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schulz-Menger%2C+Jeanette%22">Schulz-Menger, Jeanette</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22European+Radiology%22">European Radiology</searchLink>. Dec2010, Vol. 20 Issue 12, p2844-2852. 9p.
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  Data: <bold>Objectives: </bold>Interest in cardiovascular magnetic resonance (CMR) at 7 T is motivated by the expected increase in spatial and temporal resolution, but the method is technically challenging. We examined the feasibility of cardiac chamber quantification at 7 T.<bold>Methods: </bold>A stack of short axes covering the left ventricle was obtained in nine healthy male volunteers. At 1.5 T, steady-state free precession (SSFP) and fast gradient echo (FGRE) cine imaging with 7 mm slice thickness (STH) were used. At 7 T, FGRE with 7 mm and 4 mm STH were applied. End-diastolic volume, end-systolic volume, ejection fraction and mass were calculated.<bold>Results: </bold>All 7 T examinations provided excellent blood/myocardium contrast for all slice directions. No significant difference was found regarding ejection fraction and cardiac volumes between SSFP at 1.5 T and FGRE at 7 T, while volumes obtained from FGRE at 1.5 T were underestimated. Cardiac mass derived from FGRE at 1.5 and 7 T was larger than obtained from SSFP at 1.5 T. Agreement of volumes and mass between SSFP at 1.5 T and FGRE improved for FGRE at 7 T when combined with an STH reduction to 4 mm.<bold>Conclusions: </bold>This pilot study demonstrates that cardiac chamber quantification at 7 T using FGRE is feasible and agrees closely with SSFP at 1.5 T. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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