| Gadolinium-enhanced dynamic magnetic resonance imaging with endorectal coil for local staging of rectal cancer. | |
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MedLine Citation:
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PMID: 20512547 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The aim of this study was to evaluate the accuracy of dynamic gadolinium (Gd)-enhanced magnetic resonance imaging (MRI) with endorectal coil for assessing tumor invasion based on simple classification criteria. MATERIALS AND METHODS: A total of 58 patients with operable primary rectal cancer underwent preoperative MRI. An enhancement pattern in Gd-enhanced dynamic MRI with regard to tumor penetration was clarified. Retrospectively, two observers independently scored T2-weighted MRI and T2-weighted MRI combined with Gd-enhanced dynamic MRI for tumor penetration using the following criteria: With Gd-enhanced dynamic MRI, T1 tumors showed an early enhanced line around the tumor as rim enhancement; T2 tumors appeared as black lines or double layers, as the muscularis propria kept its integrity; T3 tumors showed partial discontinuity of the muscularis propria as a dotted line and a perforated area as an interrupted line. A confidence level scoring system was used, and receiver operating characteristic curves were generated. RESULTS: There were no significant differences at the T1 stage. There were significant differences for observer 1 (P = 0.001 for observer 1) at the T2 stage. There were significant differences for both observers (P = 0.001 for observer 1 and P = 0.005 for observer 2) at the T3 stage. CONCLUSION: Our criteria for Gd-enhanced dynamic MRI were effective for T3 stage tumors. |
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Authors:
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Mitsuharu Tamakawa; Yuriko Kawaai; Ryuji Shirase; Taishi Satoh; Hidenari Akiba; Hideki Hyodoh; Masato Hareyama; Tomohisa Furuhata; Koichi Hirata; Tadashi Hasegawa |
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Publication Detail:
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Type: Journal Article Date: 2010-05-29 |
Journal Detail:
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Title: Japanese journal of radiology Volume: 28 ISSN: 1867-108X ISO Abbreviation: Jpn J Radiol Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-05-31 Completed Date: 2010-09-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101490689 Medline TA: Jpn J Radiol Country: Japan |
Other Details:
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Languages: eng Pagination: 290-8 Citation Subset: IM |
Affiliation:
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Department of Radiology, Sapporo Medical University, S1 W16 Chuo-ku, Sapporo, 060-8543, Japan. tamagawa@sapmed.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Contrast Media / diagnostic use* Female Gadolinium DTPA / diagnostic use* Humans Image Interpretation, Computer-Assisted Magnetic Resonance Imaging / instrumentation*, methods* Male Middle Aged Neoplasm Staging Predictive Value of Tests ROC Curve Rectal Neoplasms / pathology* Retrospective Studies Sensitivity and Specificity |
| 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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