A clinical system for three-dimensional extended-field-of-view ultrasound

Dyer, E., Ijaz, U. , Housden, R., Prager, R., Gee, A. and Treece, G. (2012) A clinical system for three-dimensional extended-field-of-view ultrasound. British Journal of Radiology, 85(1018), e919-e924. (doi:10.1259/bjr/46007369) (PMID:22972979) (PMCID:PMC3474010)

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Abstract

Objective This work is concerned with the creation of three-dimensional (3D) extended-field-of-view ultrasound from a set of volumes acquired using a mechanically swept 3D probe. 3D volumes of ultrasound data can be registered by attaching a position sensor to the probe; this can be an inconvenience in a clinical setting. A position sensor can also cause some misalignment due to patient movement and respiratory motion. We propose a combination of three-degrees-of-freedom image registration and an unobtrusively integrated inertial sensor for measuring orientation. The aim of this research is to produce a reliable and portable ultrasound system that is able to register 3D volumes quickly, making it suitable for clinical use.<p></p> Method As part of a feasibility study we recruited 28 pregnant females attending for routine obstetric scans to undergo 3D extended-field-of-view ultrasound. A total of 49 data sets were recorded. Each registered data set was assessed for correct alignment of each volume by two independent observers.<p></p> Results In 77–83% of the data sets more than four consecutive volumes registered. The successful registration relies on good overlap between volumes and is adversely affected by advancing gestational age and foetal movement.<p></p> Conclusion The development of reliable 3D extended-field-of-view ultrasound may help ultrasound practitioners to demonstrate the anatomical relation of pathology and provide a convenient way to store data.<p></p>

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ijaz, Dr Umer Zeeshan
Authors: Dyer, E., Ijaz, U., Housden, R., Prager, R., Gee, A., and Treece, G.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:British Journal of Radiology
Publisher:British Institute of Radiology
ISSN:0007-1285
ISSN (Online):1748-880X

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