抄録
Purpose: To assess the clinical utility of tissue-specific variable refocusing flip-angle (VRFA) turbo-spin echo imaging for three-dimensional T2-weighted imaging (3D-T2WI) of the liver. Materials and Methods: Fifty-nine patients were scanned with three types of fat-suppressed T2WI for the comparison: two-dimensional single-shot turbo spin echo T2WI (ssT2WI), 3D-T2WI with tissue-specific VRFA (VISTA-TSV), and 3D-T2WI with low-constant VRFA (VISTA). Qualitatively, artifacts in the left and right lobes of the liver and black-blood effects in the liver were compared using the Wilcoxon signed-rank test with the Bonferroni correction. The detection and correct characterization rates of liver lesions were compared using McNemar's test. Results: VISTA-TSV showed reduced artifacts in the left and right lobes of the liver compared with VISTA (P < 0.017). The artifacts shown by VISTA-TSV were equivalent to those shown by ssT2WI. The black-blood effects of VISTA-TSV and VISTA were better than that of ssT2WI (P < 0.017). VISTA-TSV showed the best detection and correct characterization rate of liver lesions among the three imaging techniques (P < 0.05). Conclusion: 3D-T2WI with tissue-specific VRFA can reduce artifacts of the liver, sufficiently suppress the signal in blood vessels, and has a potential to improve the detection and correct characterization rates of liver lesions.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 339-346 |
| ページ数 | 8 |
| ジャーナル | Journal of Magnetic Resonance Imaging |
| 巻 | 41 |
| 発行部数 | 2 |
| DOI | |
| 出版物ステータス | 出版済み - 2 1 2015 |
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All Science Journal Classification (ASJC) codes
- Radiology Nuclear Medicine and imaging
これを引用
Three-dimensional T2-weighted imaging for liver MRI : Clinical values of tissue-specific variable refocusing flip-angle turbo spin echo imaging. / Takayama, Yukihisa; Nishie, Akihiro; Asayama, Yoshiki; Ushijima, Yasuhiro; Fujita, Nobuhiro; Shimamoto, Dai; Yoshiura, Takashi; Obara, Makoto; Takemura, Atsushi; Yoneyama, Masami; Honda, Hiroshi.
：: Journal of Magnetic Resonance Imaging, 巻 41, 番号 2, 01.02.2015, p. 339-346.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Three-dimensional T2-weighted imaging for liver MRI
T2 - Clinical values of tissue-specific variable refocusing flip-angle turbo spin echo imaging
AU - Takayama, Yukihisa
AU - Nishie, Akihiro
AU - Asayama, Yoshiki
AU - Ushijima, Yasuhiro
AU - Fujita, Nobuhiro
AU - Shimamoto, Dai
AU - Yoshiura, Takashi
AU - Obara, Makoto
AU - Takemura, Atsushi
AU - Yoneyama, Masami
AU - Honda, Hiroshi
PY - 2015/2/1
Y1 - 2015/2/1
N2 - Purpose: To assess the clinical utility of tissue-specific variable refocusing flip-angle (VRFA) turbo-spin echo imaging for three-dimensional T2-weighted imaging (3D-T2WI) of the liver. Materials and Methods: Fifty-nine patients were scanned with three types of fat-suppressed T2WI for the comparison: two-dimensional single-shot turbo spin echo T2WI (ssT2WI), 3D-T2WI with tissue-specific VRFA (VISTA-TSV), and 3D-T2WI with low-constant VRFA (VISTA). Qualitatively, artifacts in the left and right lobes of the liver and black-blood effects in the liver were compared using the Wilcoxon signed-rank test with the Bonferroni correction. The detection and correct characterization rates of liver lesions were compared using McNemar's test. Results: VISTA-TSV showed reduced artifacts in the left and right lobes of the liver compared with VISTA (P < 0.017). The artifacts shown by VISTA-TSV were equivalent to those shown by ssT2WI. The black-blood effects of VISTA-TSV and VISTA were better than that of ssT2WI (P < 0.017). VISTA-TSV showed the best detection and correct characterization rate of liver lesions among the three imaging techniques (P < 0.05). Conclusion: 3D-T2WI with tissue-specific VRFA can reduce artifacts of the liver, sufficiently suppress the signal in blood vessels, and has a potential to improve the detection and correct characterization rates of liver lesions.
AB - Purpose: To assess the clinical utility of tissue-specific variable refocusing flip-angle (VRFA) turbo-spin echo imaging for three-dimensional T2-weighted imaging (3D-T2WI) of the liver. Materials and Methods: Fifty-nine patients were scanned with three types of fat-suppressed T2WI for the comparison: two-dimensional single-shot turbo spin echo T2WI (ssT2WI), 3D-T2WI with tissue-specific VRFA (VISTA-TSV), and 3D-T2WI with low-constant VRFA (VISTA). Qualitatively, artifacts in the left and right lobes of the liver and black-blood effects in the liver were compared using the Wilcoxon signed-rank test with the Bonferroni correction. The detection and correct characterization rates of liver lesions were compared using McNemar's test. Results: VISTA-TSV showed reduced artifacts in the left and right lobes of the liver compared with VISTA (P < 0.017). The artifacts shown by VISTA-TSV were equivalent to those shown by ssT2WI. The black-blood effects of VISTA-TSV and VISTA were better than that of ssT2WI (P < 0.017). VISTA-TSV showed the best detection and correct characterization rate of liver lesions among the three imaging techniques (P < 0.05). Conclusion: 3D-T2WI with tissue-specific VRFA can reduce artifacts of the liver, sufficiently suppress the signal in blood vessels, and has a potential to improve the detection and correct characterization rates of liver lesions.
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U2 - 10.1002/jmri.24554
DO - 10.1002/jmri.24554
M3 - Article
C2 - 24399511
AN - SCOPUS:84921881218
VL - 41
SP - 339
EP - 346
JO - Journal of Magnetic Resonance Imaging
JF - Journal of Magnetic Resonance Imaging
SN - 1053-1807
IS - 2
ER -