دورية أكاديمية
Signal decay mapping of myocardial edema using dual-contrast fast spin-echo MRI.
| العنوان: | Signal decay mapping of myocardial edema using dual-contrast fast spin-echo MRI. |
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| المؤلفون: | Krumm P; Department of Diagnostic and Interventional Radiology, Eberhard Karls University, Tübingen, Germany., Martirosian P; Department of Diagnostic and Interventional Radiology, Section on Experimental Radiology, Eberhard Karls University, Tübingen, Germany., Rath D; Department of Cardiology and Cardiovascular Medicine, Eberhard Karls University, Tübingen, Germany., Zitzelsberger T; Department of Diagnostic and Interventional Radiology, Eberhard Karls University, Tübingen, Germany., Ruff CA; Department of Diagnostic and Interventional Radiology, Eberhard Karls University, Tübingen, Germany., Klumpp BD; Department of Diagnostic and Interventional Radiology, Eberhard Karls University, Tübingen, Germany., Nikolaou K; Department of Diagnostic and Interventional Radiology, Eberhard Karls University, Tübingen, Germany., Gawaz M; Department of Cardiology and Cardiovascular Medicine, Eberhard Karls University, Tübingen, Germany., Geisler T; Department of Cardiology and Cardiovascular Medicine, Eberhard Karls University, Tübingen, Germany., Schick F; Department of Diagnostic and Interventional Radiology, Section on Experimental Radiology, Eberhard Karls University, Tübingen, Germany., Kramer U; Department of Diagnostic and Interventional Radiology, Eberhard Karls University, Tübingen, Germany. |
| المصدر: | Journal of magnetic resonance imaging : JMRI [J Magn Reson Imaging] 2016 Jul; Vol. 44 (1), pp. 186-93. Date of Electronic Publication: 2015 Dec 31. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Wiley-Liss Country of Publication: United States NLM ID: 9105850 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1522-2586 (Electronic) Linking ISSN: 10531807 NLM ISO Abbreviation: J Magn Reson Imaging Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: <2005-> : Hoboken , N.J. : Wiley-Liss Original Publication: Chicago, IL : Society for Magnetic Resonance Imaging, c1991- |
| مواضيع طبية MeSH: | Algorithms*, Cardiac Imaging Techniques/*methods , Edema, Cardiac/*diagnostic imaging , Image Interpretation, Computer-Assisted/*methods , Magnetic Resonance Imaging, Cine/*methods, Adult ; Aged ; Aged, 80 and over ; Contrast Media/administration & dosage ; Female ; Humans ; Image Enhancement/methods ; Male ; Middle Aged ; Reproducibility of Results ; Sensitivity and Specificity ; Spin Labels |
| مستخلص: | Purpose: To introduce a dual-contrast fast spin-echo (dcFSE) sequence for signal decay mapping of myocardial edema. Materials and Methods: After consultation with the Institutional Review Board, 22 acute myocardial infarction (MI) patients were examined with magnetic resonance imaging (MRI) at 1.5T 2 days after revascularization. Edema was evaluated in 16 myocardial segments with an exponential fit for signal decay time (SDT) in dcFSE mapping and T2 signal intensity ratio for single-contrast FSE. Myocardial viability was evaluated in late gadolinium enhancement (LGE). A control group of 10 volunteers was examined for edema imaging. SDT was compared in segment groups: 1) with LGE in MI, 2) penumbra, 3) remote from LGE, 4) controls. Groups 1/3 and 3/4 were tested on difference. Three phantoms providing similar T2 but different T1 relaxation times (low, intermediate, high) were examined with dcFSE and multicontrast spin echo sequence as a reference. Results: The SDT/T2 ratio for segment groups was 1) 82msec/1.7 in segments with LGE; 2) 65msec/1.6 for penumbra, 3) 62msec/1.7 for remote segments, and 4) 50msec/1.6 in controls. In dcFSE group 1/3 (P < 0.0001) and in group 3/4 (P = 0.0002) SDT was significantly different. In single-contrast FSE the T2 ratio was not significantly different for both tests: 1/3 P = 0.1889; 3/4 P = 0.8879. T2 -overestimation of dcFSE was 23% in low, 29% in intermediate, and 35% in highly T1 contaminated phantoms. Conclusion: dcFSE signal decay edema mapping is feasible in volunteers and patients. DcFSE SDT is superior to T2 ratio for detection of high-grade and diffuse myocardial edema. J. Magn. Reson. Imaging 2016;44:186-193. (© 2015 Wiley Periodicals, Inc.) |
| فهرسة مساهمة: | Keywords: FSE; T2 mapping; cardiac MRI; edema; fast-spin-echo |
| المشرفين على المادة: | 0 (Contrast Media) 0 (Spin Labels) |
| تواريخ الأحداث: | Date Created: 20160101 Date Completed: 20180102 Latest Revision: 20180105 |
| رمز التحديث: | 20240829 |
| DOI: | 10.1002/jmri.25142 |
| PMID: | 26717865 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1522-2586 |
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| DOI: | 10.1002/jmri.25142 |