Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9100
Title: A semi-automated 3-d annotation method for breast ultrasound imaging : system development and feasibility study on phantoms
Authors: Jiang, WW
Li, AH
Zheng, YP 
Keywords: 3-D ultrasound
Annotation
Breast cancer
Breast imaging
Free-hand scanning
Issue Date: 2014
Publisher: Elsevier Science Inc
Source: Ultrasound in Medicine and Biology, 2014, v. 40, no. 2, p. 434-446 How to cite?
Journal: Ultrasound in Medicine and Biology 
Abstract: Spatial annotation is an essential step in breast ultrasound imaging, because the follow-up diagnosis and treatment are based on this annotation. However, the current method for annotation is manual and highly dependent on the operator's experience. Moreover, important spatial information, such as the probe tilt angle, cannot be indicated in the clinical 2-D annotations. To solve these problems, we developed a semi-automated 3-D annotation method for breast ultrasound imaging. A spatial sensor was fixed on an ultrasound probe to obtain the image spatial data. Three-dimensional virtual models of breast and probe were used to annotate image locations. After the reference points were recorded, this system displayed the image annotations automatically. Compared with the conventional manual annotation method, this new annotation system has higher accuracy as indicated by the phantom test results. In addition, this new annotation method has good repeatability, with intra-class correlation coefficients of 0.907 (average variation: ≤3.45%) and 0.937 (average variation: ≤2.85%) for the intra-rater and inter-rater tests, respectively. Breast phantom experiments simulating clinical breast scanning further indicated the feasibility of this system for clinical applications. This new annotation method is expected to facilitate more accurate, intuitive and rapid breast ultrasound diagnosis.
URI: http://hdl.handle.net/10397/9100
ISSN: 0301-5629
DOI: 10.1016/j.ultrasmedbio.2013.10.001
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