Sun Young Lee MD, Presenter: Nothing to Disclose

Joo Hee Cha, Abstract Co-Author: Nothing to Disclose

Eun Young Chae, Abstract Co-Author: Nothing to Disclose

Hak Hee Kim MD, Abstract Co-Author: Nothing to Disclose

Hee Jung Shin MD, Abstract Co-Author: Nothing to Disclose

Hyunji Kim MD, Abstract Co-Author: Nothing to Disclose

To compare the performance of coronal view of automated breast ultrasound (ABUS) with that of transverse view in the lesion detection

Three breast radiologists independently interpreted the ABUS images from 113 women, 14 with negative findings and 99 with known breast lesions (99 benign and 53 malignant findings). The readers were asked to detect the presence or absence of the abnormalities using transverse and coronal view in the different reading session. If a lesion was detected, we evaluated the location, characteristics of lesions. Intraclass correlation coefficients and kappa statistics were used for statistical analysis. Time to review and interpret an examination was also evaluated.

The detection rate of malignant lesions was 95.6% and 87.4% for transverse and coronal view (p=0.0089). The detection rate of benign lesions was 72.4% and 56.6% for transverse and coronal view (p=0.0001). Larger lesions are more consistently detected by coronal view: detection rates were 7.4% at 5 mm or smaller; 48.4% at 6-10 mm; 80.1% at 11-15 mm; 89.1% for lesions larger than 15 mm (p<0.0001). The times of coronal view to review and rate an examination was shorter than that of transverse view (p<0.0001). ICC values for clockface, distance from nipple, and lesion diameter by coronal view all exceeded 0.7, indicating high reliability. Moderate agreement was found for mass shape, margin, echogenicity, and BIRADS final assessment.

The detection rate of coronal view was significantly lower than that of transverse view for both benign and malignant lesions.

Coronal view can be used as an additional method to transverse view. However, the role of coronal view by ABUS is not yet established, which needs to undergo further studies.

Lee, S, Cha, J, Chae, E, Kim, H, Shin, H, Kim, H, Comparison of Transverse versus Coronal View of Automated Breast Ultrasound in Lesion Detection.  Radiological Society of North America 2013 Scientific Assembly and Annual Meeting, December 1 - December 6, 2013 ,Chicago IL. http://archive.rsna.org/2013/13013451.html