Table 3 Algorithm precision results.

From: Automated detection of cerebral microbleeds on T2*-weighted MRI

 

True positives

False positives

Precision

Average FP/scan

Microbleed positive

SWI

50

426

0.11

9.7

GRE

56

752

0.07

17.1

Microbleed negative

SWI

–

249

–

7.32

GRE

–

544

–

15.4

Follow up

SWI

10

160

0.06

3.64

  1. As noted in the methods, microbleed positive participants are those who have at least one microbleed present (identified by two or more raters), and microbleed negative participants are those who have no microbleeds present (agreed by all three raters). False positive (FP) are presented in the final column averaged over the number of images (FP/scan).
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