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dc.contributor.author조현혜-
dc.date.accessioned2016-08-28T11:08:01Z-
dc.date.available2016-08-28T11:08:01Z-
dc.date.issued2016-
dc.identifier.issn0361-803X-
dc.identifier.issn1546-3141-
dc.identifier.otherOAK-19095-
dc.identifier.urihttps://dspace.ewha.ac.kr/handle/2015.oak/218379-
dc.description.abstractOBJECTIVE. The purpose of this study was to compare free-breathing radially sampled 3D T1-weighted gradient-echo acquisitions (radial volumetric interpolated breath-hold examination [VIBE]) with a T1-weighted turbo spin-echo (TSE) sequence for contrast-enhanced spinal imaging of children with CNS tumors. MATERIALS AND METHODS. Twenty-eight consecutively registered children with CNS tumors underwent evaluation of leptomeningeal seeding with 1.5-T MRI that included both radial VIBE and T1-weighted TSE sequences. For qualitative analysis, overall image quality; presence of motion, CSF flow, and radial artifacts; and lesion conspicuity were retrospectively assessed with scoring systems. The signal-intensity uniformity of each sequence was evaluated for quantitative comparison. The acquisition times for each sequence were compared. RESULTS. Images obtained with the radial VIBE sequence had a higher overall image quality score than did T1-weighted TSE images (3.61 +/- 0.73 vs 2.80 +/- 0.69, p < 0.001) and lower motion artifact (0.82 +/- 0.43 vs 1.29 +/- 0.56, p = 0.001) and CSF flow artifact (0 vs 1.68 +/- 0.67, p < 0.001) scores. Radial artifacts were found only on radial VIBE images (1.36 +/- 0.31 vs 0, p < 0.001). In 13 patients with spinal seeding nodules, radial VIBE images showed greater lesion conspicuity than did T1-weighted TSE images (4.23 +/- 0.52 vs 2.47 +/- 0.57, p = 0.005). Radial VIBE images had diminished signal-intensity variation compared with T1-weighted TSE images in air, spine, and muscle (p < 0.01). The mean acquisition times were not significantly different between the two sequences (p = 0.117). CONCLUSION. For pediatric spinal imaging, radial VIBE images had better image quality and lesion conspicuity and fewer CSF and respiratory motion artifacts than did T1-weighted TSE images in a similar acquisition time.-
dc.languageEnglish-
dc.publisherAMER ROENTGEN RAY SOC-
dc.subjectchildren-
dc.subjectleptomeningeal seeding-
dc.subjectMRI-
dc.subjectradial sampling-
dc.subjectspine-
dc.subjectVIBE-
dc.titleFree-Breathing Radial 3D Fat-Suppressed T1-Weighted Gradient-Echo Sequence for Contrast-Enhanced Pediatric Spinal Imaging: Comparison With T1-Weighted Turbo Spin-Echo Sequence-
dc.typeArticle-
dc.relation.issue1-
dc.relation.volume207-
dc.relation.indexSCIE-
dc.relation.indexSCOPUS-
dc.relation.startpage177-
dc.relation.lastpage182-
dc.relation.journaltitleAMERICAN JOURNAL OF ROENTGENOLOGY-
dc.identifier.doi10.2214/AJR.15.15617-
dc.identifier.wosidWOS:000378658500030-
dc.identifier.scopusid2-s2.0-84979066968-
dc.author.googleCho, Hyun-Hae-
dc.author.googleChoi, Young Hun-
dc.author.googleCheon, Jung-Eun-
dc.author.googleLee, So Mi-
dc.author.googleKim, Woo Sun-
dc.author.googleKim, In-One-
dc.author.googlePaek, MunYoung-
dc.date.modifydate20210915163947-
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