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Evaluation of the effect of computer-aided classification of benign and malignant lesions on reader performance in automated three-dimensional breast ultrasound.

Abstract：

RATIONALE AND OBJECTIVES:To investigate the effect of a newly developed computer-aided diagnosis (CAD) system on reader interpretation of breast lesions in automated three-dimensional (3D) breast ultrasound. MATERIALS AND METHODS:A CAD system was developed to differentiate malignant lesions from benign lesions including automated lesion segmentation in three dimensions; extraction of lesion features such as spiculation, margin contrast, and posterior acoustic behavior; and a classification stage. Eighty-eight patients with breast lesions were included for an observer study: 47 lesions were malignant and 41 were benign. Eleven readers (seven radiologists and four residents) read the cases with and without CAD. We compared the performance of readers with and without CAD using receiver operating characteristic (ROC) analysis. RESULTS:The CAD system had an area under the ROC curve (AUC) of 0.92 for discriminating benign and malignant lesions, whereas the unaided reader AUC ranged from 0.77 to 0.92. Mean performance of inexperienced readers improved when CAD was used (AUC = 0.85 versus 0.90; P = .007), whereas mean performance of experienced readers did not change with CAD (AUC = 0.89). CONCLUSIONS:By using the CAD system for classification of lesions in automated 3D breast ultrasound, which on its own performed as good as the best readers, the performance of inexperienced readers improved while that of experienced readers remained unaffected.

journal_name

Acad Radiol

journal_title

Academic radiology

authors

Tan T,Platel B,Twellmann T,van Schie G,Mus R,Grivegnée A,Mann RM,Karssemeijer N

doi

10.1016/j.acra.2013.07.013

subject

Has Abstract

pub_date

2013-11-01 00:00:00

pages

1381-8

issue

11

eissn

1076-6332

issn

1878-4046

pii

S1076-6332(13)00383-8

journal_volume

20

pub_type

杂志文章,多中心研究

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