| Contrast-enhanced timing robust acquisition order with a preparation of the longitudinal signal component (CENTRA plus) for 3D contrast-enhanced abdominal imaging. | |
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MedLine Citation:
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PMID: 18504734 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To investigate a new image acquisition method that enables an accurate hepatic arterial phase definition and the visualization of contrast agent uptake processes in abdominal organs like liver, spleen, and pancreas. MATERIALS AND METHODS: A 3D turbo gradient echo method where a fat suppression prepulse is followed by the acquisition of several profiles was combined with an elliptical centric k-space ordering technique and 3D dynamic elliptical centric keyhole. The new k-space ordering method (CENTRA+) was validated experimentally. In an initial clinical evaluation phase the method was employed in five patients to assess the accuracy of the hepatic arterial phase definition and the visualization of the contrast uptake processes in dynamic scanning in abdominal organs like liver, spleen, and pancreas. RESULTS: In total, five patients were evaluated using the new k-space order. Our initial results indicate that the new k-space order allows consistent capture of the hepatic arterial phase. In dynamic scanning the extreme short temporal resolution obtained with 3D elliptical centric keyhole enables contrast enhancement to be followed in organs with fast contrast uptake characteristics. CONCLUSION: The elliptical centric nature of the new image acquisition method effectively allows capture of the contrast enhancement processes with good fat suppression. |
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Authors:
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Gabriele M Beck; Jan De Becker; Alun C Jones; Marcus von Falkenhausen; Winfried A Willinek; Jürgen Gieseke |
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Publication Detail:
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Type: Clinical Trial; Journal Article |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: 27 ISSN: 1053-1807 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-06-02 Completed Date: 2008-09-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 1461-7 Citation Subset: IM |
Affiliation:
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Philips Medical Systems, Best, Netherlands. gabriele.beck@philips.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Abdomen
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pathology* Adult Aged Algorithms Contrast Media / administration & dosage* Female Gadolinium DTPA / diagnostic use Hepatic Artery / pathology Humans Image Enhancement / methods* Imaging, Three-Dimensional / methods* Liver / pathology Magnetic Resonance Imaging / methods* Male Middle Aged Observer Variation Pancreas / pathology Pancreatic Diseases / diagnosis* Prospective Studies Reproducibility of Results Signal Processing, Computer-Assisted Spleen / pathology |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 80529-93-7/Gadolinium DTPA |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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