The math of decision in Radiology - MIR
The math of decision in Radiology - MIR
The math of decision in Radiology - MIR
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Disease<br />
Disease<br />
Total<br />
+<br />
-<br />
Test +<br />
a<br />
b<br />
a+b<br />
TP<br />
FP<br />
TP+FP<br />
Test -<br />
c<br />
d<br />
c+d<br />
FN<br />
TN<br />
FN+TN<br />
Total<br />
a+c<br />
b+d<br />
a+b+c+d<br />
TP+FN<br />
TN+FP<br />
Positive Predictive Value: a/a+b<br />
Negative Predictive Value: d/c+d<br />
Sensitivity:<br />
Specificity:<br />
a/a+c<br />
d/b+d
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