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. 2021 May 23;34(4):811–819. doi: 10.1007/s10278-021-00462-1

Fig. 1.

Fig. 1

Two examples of NLP analysis of archived radiology report text (A). Using regular expression methods and the structured or semi-structured nature of LMRI spine reporting, the NLP algorithm extracted severity scores for the lumbar spine, resulting in a 6 × 3 matrix of values ranging 0–5 (normal–severe). The composite severity score is the sum of these values