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ECR 2015 / C-1904
Added value of one-view digital breast tomosynthesis combined with digital mammography according to readers concordance: changing in BIRADS rate and follow-up management - a preliminary study
This poster is published under an open license. Please read the disclaimer for further details.
Congress: ECR 2015
Poster No.: C-1904
Type: Scientific Exhibit
Keywords: Breast, Mammography, Diagnostic procedure
Authors: E. Miglio, F. Galati, M. Telesca, V. Casali, M. Nolfi, M. Luciani, F. Pediconi; Rome/IT
DOI:10.1594/ecr2015/C-1904

Results

DM+DBT significantly increased the number of BIRADS 1, 2 and 5 , and reduced the number of BIRADS 0 and 3 of both readers when compared to DM alone (Reader 1: Tab. 1; Reader 2: Tab.2). DM+DBT also significantly reduced the recall rate for both Reader 1 (DM 78.3% vs DM + DBT 46.5%, Tab. 1) and Reader 2 (DM 95.3% vs DM + DBT 50.4%, Tab.2). 

The concordance between the readers for the BIRADS classification was moderate (k=0.35) for DM and substantial (k=0.67) for DM+DBT, Tab.3.

DM+DBT also improved the recall rate concordance (k DM = 0.1 vs k DM + DBT = 0.5) , Tab.3.

 

Tab. 1: Reader 1 resuts

 

DM

DM + DTB

BI-RADS 0

5 (3.9%)

2 (1.5%)

BI-RADS 1

13 (10.1%)

28 (21.7%)

BI-RADS 2

35 (27.1%)

53 (42.1%)

BI-RADS 3

54 (41.9%)

10 (7.7%)

BI-RADS 4

19 (14.7%)

14 (10.8%)

BI-RADS 5

3 (2.3%)

22 (17%)

RECALL

101 (78.3%)

60 (46.5%)

NO RECALL

28 (21.7%)

69 (53.5%)

   

 

 

 

 Tab. 2: Reader 2 resuts

 

DM

DM + DTB

BI-RADS 0

15 (11.6%)

3 (2.3%)

BI-RADS 1

4 (3.1%)

19 (14.7%)

BI-RADS 2

28 (21.7%)

70 (54.3%)

BI-RADS 3

61 (47.3%)

8 (6.2%)

BI-RADS 4

16 (12.4%)

6 (4.6%)

BI-RADS 5

5 (3.9%)

23 (17.8%)

RECALL

123 (95.3%)

65 (50.4%)

NO RECALL

6 (4.6%)

64 (49.6%)

 

 

Tab. 3: Readers concordance (Cohen's kappa)

 

DM

DM + DTB

BI-RADS

0.35

0.67

RECALL

0.1

0.50

 

 

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