Abstract:
:Left ventricle (LV) segmentation plays an important role in the diagnosis of cardiovascular diseases. The cardiac contractile function can be quantified by measuring the segmentation results of LVs. Fully convolutional networks (FCNs) have been proven to be able to segment images. However, a large number of annotated images are required to train the network to avoid overfitting, which is a challenge for LV segmentation owing to the limited small number of available training samples. In this paper, we analyze the influence of augmenting training samples used in an FCN for LV segmentation, and propose a data augmentation approach based on shape models to train the FCN from a few samples. We show that the balanced training samples affect the performance of FCNs greatly. Experiments on four public datasets demonstrate that the FCN trained by our augmented data outperforms most existing automated segmentation methods with respect to several commonly used evaluation measures.
journal_name
Magn Reson Imagingjournal_title
Magnetic resonance imagingauthors
Lin A,Wu J,Yang Xdoi
10.1016/j.mri.2019.08.004subject
Has Abstractpub_date
2020-02-01 00:00:00pages
152-164eissn
0730-725Xissn
1873-5894pii
S0730-725X(19)30052-9journal_volume
66pub_type
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