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Detection of Brain Metastases by 3-Dimensional Magnetic Resonance Imaging at 3 T: Comparison Between T1-Weighted Volume Isotropic Turbo Spin Echo Acquisition and 3-Dimensional T1-Weighted Fluid-Attenuated Inversion Recovery Imaging

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Title: Detection of Brain Metastases by 3-Dimensional Magnetic Resonance Imaging at 3 T: Comparison Between T1-Weighted Volume Isotropic Turbo Spin Echo Acquisition and 3-Dimensional T1-Weighted Fluid-Attenuated Inversion Recovery Imaging
Authors: Yoshida, Atsushi Browse this author
Tha, Khin Khin Browse this author →KAKEN DB
Fujima, Noriyuki Browse this author
Zaitsu, Yuri Browse this author
Yoshida, Daisuke Browse this author
Tsukahara, Akiko Browse this author
Onodera, Shunsuke Browse this author
Shirato, Hiroki Browse this author →KAKEN DB
Terae, Satoshi Browse this author →KAKEN DB
Keywords: brain
metastases
magnetic resonance imaging
volume isotropic turbo-spin-echo acquisition
fluid-attenuated inversion recovery
Issue Date: Feb-2013
Publisher: Lippincott Williams & Wilkins
Journal Title: Journal of Computer Assisted Tomography
Volume: 37
Issue: 1
Start Page: 84
End Page: 90
Publisher DOI: 10.1097/RCT.0b013e318271f216
PMID: 23321838
Abstract: Objective: To compare the diagnostic performance in detection of brain metastases between contrast-enhanced T1-weighted-Volume ISotropic Turbo-spin-echo Acquisition (T1-VISTA) and 3-dimensional T1-weighted fluid-attenuated inversion recovery (3D-T1-FLAIR) imaging at 3T. Methods: Two neuroradiologists selected 129 true (metastases) and 70 false (vessels and artifacts) lesions on the contrast-enhanced T1-VISTA and 3D-T1-FLAIR images of 14 cancer patients with hyperintense brain lesions. Four blinded neuroradiologists distinguished between the true and false lesions, using a five-point confidence rating scale. The receiver operating characteristic analysis was performed to compare the diagnostic performance. Contrast-to-noise ratio (CNR) of the true lesions was also compared between the two sequences by using paired t-tests. Results: For lesions < 3 mm, the area under curve and sensitivity achieved by T1-VISTA imaging were significantly greater than 3D-T1-FLAIR imaging. The CNR was also significantly greater with T1-VISTA imaging. Conclusion: The contrast-enhanced T1-VISTA imaging is better suited than 3D-T1-FLAIR imaging, for detection of small metastases.
Rights: This is a non-final version of an article published in final form in Journal of Computer Assisted Tomography: January/February 2013, 37(1), pp.84-90
Relation: http://journals.lww.com/jcat/pages/default.aspx
Type: article (author version)
URI: http://hdl.handle.net/2115/54591
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Khin Khin Tha

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