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2.6. Radiological model building and validation

WH Wei‐yuan Huang
LW Ling‐hua Wen
GW Gang Wu
PP Pei‐pei Pang
RO Richard Ogbuji
CZ Chao‐cai Zhang
FC Feng Chen
JZ Jian‐nong Zhao
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The Radscore of each sequence was considered a variable. A radiological combined model was built based on Radscores of four sequences using multiple logistic regression. To estimate the prediction error and confidence interval, we further tested the proposed model using a 1000‐iteration bootstrap analysis on the overall dataset. The performance of the radiological model of four sequences was validated by a ROC curve. The radiological combined model was validated by a ROC curve, nomogram, calibration, and DCA.

Copyright and License information:  ©2021 The Authors. published by John Wiley & Sons Australia, Ltd on behalf of Japanese Cancer Association.
This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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