Statistical Analysis

We focus here on patient management, the decisions that are made based on the radiologists' readings of the image [1,14,23]. Management is a key issue in digital mammo-graphy. There is concern that artifacts could be introduced, leading to an increase in false positives and hence in unnecessary biopsies. The management categories we emphasize are the following four, given in order of increasing seriousness:

RTS: incidental, negative, or benign with return to screening

F/U: probably benign but requiring 6-month follow-up

Findings (detection): Dominant Incidental, focal Incidental, diffuse

Individual finding side: Left Right Both/Bilateral Finding #_of_

Finding type: (possible, definite)

1)

mass

2)

clustered calcifications

3)

mass containing calcifications

4)

mass with surrounding calcs

5)

spiculated mass

6)

ill defined mass

7)

architectural distortion

8)

solitary dilated duct

9)

asymmetric breast tissue

10)

focal asymmetric density

11)

breast edema

12)

multiple scattered and occasionally

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