論文

査読有り 国際誌
2020年10月

Navigator-triggered and breath-hold 3D MRCP using compressed sensing: image quality and method selection factor assessment.

Abdominal radiology (New York)
  • Daisuke Morimoto
  • ,
  • Tomoko Hyodo
  • ,
  • Ken Kamata
  • ,
  • Tomoya Kadoba
  • ,
  • Makoto Itoh
  • ,
  • Hiroyuki Fukushima
  • ,
  • Yasutaka Chiba
  • ,
  • Mamoru Takenaka
  • ,
  • Tomohiro Mochizuki
  • ,
  • Yu Ueda
  • ,
  • Keizou Miyagoshi
  • ,
  • Masatoshi Kudo
  • ,
  • Kazunari Ishii

45
10
開始ページ
3081
終了ページ
3091
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s00261-020-02403-y

PURPOSE: To examine whether MRCP using a combination of compressed sensing and sensitivity encoding with navigator-triggered and breath-hold techniques (NT C-SENSE and BH C-SENSE, respectively) have comparable image quality to that of navigator-triggered MRCP using only sensitivity encoding (NT SENSE) at 1.5-T. METHODS: Fifty-one participants were enrolled in this prospective study between July and October 2018 and underwent the three 3D MRCP sequences each. The acquisition time and relative duct-to-periductal contrast ratios (RC values) of each bile duct segment were obtained. Visualization of the bile and main pancreatic ducts, background suppression, artifacts, and overall image quality were scored on 5-point scales. Mean and median differences in RC values and qualitative scores of NT C-SENSE and BH C-SENSE relative to NT SENSE were calculated with 95% confidence intervals (CIs). RESULTS: Acquisition time of NT SENSE, NT C-SENSE, and BH C-SENSE were 348, 143 (mean for both), and 18 s (for all participants), respectively. The RC value of each bile duct segment was inferior, but the lower limits of the 95% CIs of the mean differences were ≥ - 0.10, for both NT C-SENSE and BH C-SENSE. The visualization score of the intrahepatic duct in BH C-SENSE was inferior to that in NT SENSE (lower 95% CI limit, - 1.5). In both NT C-SENSE and BH C-SENSE, the 95% CIs of the median differences in the other qualitative scores were from - 1.0 to 0.0. CONCLUSION: NT C-SENSE and BH C-SENSE have comparable image quality to NT SENSE at 1.5-T.

リンク情報
DOI
https://doi.org/10.1007/s00261-020-02403-y
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/31925493

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