MR画像を用いた予測モデリングのためのレディオミクス特徴量の安定性評価

DOI
  • 平山 美咲
    帝京大学大学院保健学研究科診療放射線科学専攻
  • 亀澤 秀美
    帝京大学福岡医療技術学部診療放射線学科
  • 肥合 康弘
    帝京大学福岡医療技術学部診療放射線学科

書誌事項

タイトル別名
  • Evaluation of Radiomics Features Stability for Prediction Modeling using MR Image

抄録

<p>Radiomics has been established to support treatmentdecision making in precision medicine. The radiomic features (RFs) used for prediction must be stable with respect to thevariety of imaging conditions. The purpose was to evaluate the stability of RFsextracted from T1-weighted MR images (T1WIs) using different imaging conditions. Two types of stabilityevaluation (SE) phantoms that canbe used for contrast (C-SE) andresolution (R-SE) assessment werecreated. The T1WIs of each phantom were acquired. Regarding the imagingparameters, the number of excitations (NEX), matrix size (MS),and repetition time (TR) werevaried. A total of 837 RFs were extracted from each T1WI acquired withdifferent parameters. Stability was evaluated using the coefficient ofvariation (CV). The criterion ofstability was employed as the CV < 0.05. The percentage of stable featuresin the C- and R-SE phantoms against individually changes in imaging conditionswere 30.8% and 31.1% for the TR, 34.8% and 39.1% for the NEX, and 35.6% and 38.5% for the MS respectively. Moreover, the percentage of stable features forchanging all conditions were 21.0% for the C-SE phantom and 22.1% for the R-SEphantom. Stable features were found in MR images against changes in imagingconditions.</p>

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390298588087131520
  • DOI
    10.11318/mii.40.114
  • ISSN
    18804977
    09101543
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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