| Optimal MR cholangiopancreatographic sequence and its clinical application. | |
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MedLine Citation:
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PMID: 9457189 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To determine the appropriate acquisition parameters for magnetic resonance cholangiopancreatography (MRCP) with a half-Fourier rapid acquisition with relaxation enhancement (RARE) sequence; to determine the optimal MRCP technique by comparing half-Fourier RARE, steady-state free precession (SSFP) two-dimensional (2D) fast spin-echo (SE), and three-dimensional (3D) fast SE sequences; and to clarify the usefulness and limitations of MRCP in diagnosing pancreatic abnormalities. MATERIALS AND METHODS: Half-Fourier RARE MRCP images with varying parameters were compared by using a phantom. Duct conspicuity and contrast-to-noise ratios (C/Ns) were compared for the four MRCP techniques in a phantom and healthy volunteers. The optimal MRCP technique was used to study healthy volunteers and clinical cases. Receiver operating characteristic (ROC) curves were created for data analysis. RESULTS: A 5-mm-thick section without intersection gap was appropriate for half-Fourier RARE MRCP. Only half-Fourier RARE MRCP could depict a 1-mm duct. C/N was the highest with half-Fourier RARE, followed by 3D fast SE, 2D fast SE, and SSFP sequences. ROC curve analysis revealed no interobserver differences, and the area under the curve for detection of strictures of the main pancreatic duct was as high as 0.89. CONCLUSION: Half-Fourier RARE MRCP has the highest contrast and spatial resolution among the four techniques studied and may play an important role in diagnosing pancreatic abnormalities. |
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Authors:
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H Irie; H Honda; T Tajima; T Kuroiwa; K Yoshimitsu; K Makisumi; K Masuda |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Radiology Volume: 206 ISSN: 0033-8419 ISO Abbreviation: Radiology Publication Date: 1998 Feb |
Date Detail:
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Created Date: 1998-02-26 Completed Date: 1998-02-26 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401260 Medline TA: Radiology Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 379-87 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, Faculty of Medicine, Kyushu University, Fukuoka, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Female Fourier Analysis Humans Image Processing, Computer-Assisted / methods* Magnetic Resonance Imaging / instrumentation, methods* Male Middle Aged Observer Variation Pancreas / pathology* Pancreatic Diseases / diagnosis*, epidemiology Pancreatic Ducts / pathology Pancreatic Neoplasms / diagnosis, epidemiology Phantoms, Imaging ROC Curve Signal Processing, Computer-Assisted* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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