Automated speckle tracking algorithm to aid on-axis imaging in echocardiography
File(s)JMI_1_3_037001.pdf (1.66 MB)
Published version
Author(s)
Type
Journal Article
Abstract
Obtaining a "correct" view in echocardiography is a subjective process in which an operator attempts to obtain images conforming to consensus standard views. Real-time objective quantification of image alignment may assist less experienced operators, but no reliable index yet exists. We present a fully automated algorithm for detecting incorrect medial/lateral translation of an ultrasound probe by image analysis. The ability of the algorithm to distinguish optimal from sub-optimal four-chamber images was compared to that of specialists-the current "gold-standard." The orientation assessments produced by the automated algorithm correlated well with consensus visual assessments of the specialists ([Formula: see text]) and compared favourably with the correlation between individual specialists and the consensus, [Formula: see text]. Each individual specialist's assessments were within the consensus of other specialists, [Formula: see text] of the time, and the algorithm's assessments were within the consensus of specialists 85% of the time. The mean discrepancy in probe translation values between individual specialists and their consensus was [Formula: see text], and between the automated algorithm and specialists' consensus was [Formula: see text]. This technology could be incorporated into hardware to provide real-time guidance for image optimisation-a potentially valuable tool both for training and quality control.
Date Issued
2014-11-25
Date Acceptance
2014-10-31
Citation
Journal of Medical Imaging, 2014, 1 (3)
ISSN
2329-4310
Publisher
Society of Photo-optical Instrumentation Engineers
Journal / Book Title
Journal of Medical Imaging
Volume
1
Issue
3
Copyright Statement
© 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for
personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Sponsor
British Heart Foundation
Grant Number
FS/10/38/28268
Subjects
automated guidance
echocardiography
speckle tracking
ultrasound probe positioning
Publication Status
Published
Article Number
037001