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Table 3 Error analysis of the NLP system

From: The implementation of natural language processing to extract index lesions from breast magnetic resonance imaging reports

 

Imaging features

Not detected (cases)

Not detected correctly (cases)

Index lesion

Location

16

2

 

Shape

2

24

 

Size

20

5

 

T1WI

21

–

 

T2WI

18

–

 

DWI

12

10

 

Margin

7

9

 

Internal enhancement

20

3

 

Enhancement kinetic curve

20

–

 

Lymphadenopathy

12

20

 

Nipple invasion

29

–

 

Skin invasion

43

–

 

Chest wall invasion

5

–

 

Pectoralis muscle invasion

3

–

 

BI-RADS category

20

4

  1. NLP natural language processing, T1WI T1-weighted imaging, T2WI T2-weighted imaging, DWI diffusion weighted imaging, NME non-mass enhancement, BI-RADS Breast Imaging Reporting and Data System
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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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