Probe Localization for Freehand 3D Ultrasound by Tracking Skin Features

Sun, Shanhui; Gilbertson, Matthew W.; Anthony, Brian W.

doi:10.1007/978-3-319-10470-6_46

Cited by 22 publications

(11 citation statements)

References 12 publications

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“…Based on this concept, a freehand ultrasound platform has been developed which localizes an ultrasound probe in 6-degree-of-freedom (DOF) with respect to the patient (and not room coordinates) by tracking natural skin features (i.e., fiducial-free) with a small camera mounted to the ultrasound probe (Sun and Anthony, 2012 ; Sun et al, 2013a , b ). The system comprises: (1) an optical camera kinematically coupled to an ultrasound transducer, (2) software that extracts unique skin features, and (3) software that localizes the transducer by tracking the skin features (Sun and Anthony, 2012 ; Sun et al, 2013a , b , 2014 ).…”

Section: Measuring and Controlling Acquisition State In Quantitative mentioning

confidence: 99%

The Need for Standardized Assessment of Muscle Quality in Skeletal Muscle Function Deficit and Other Aging-Related Muscle Dysfunctions: A Symposium Report

et al. 2017

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A growing body of scientific literature suggests that not only changes in skeletal muscle mass, but also other factors underpinning muscle quality, play a role in the decline in skeletal muscle function and impaired mobility associated with aging. A symposium on muscle quality and the need for standardized assessment was held on April 28, 2016 at the International Conference on Frailty and Sarcopenia Research in Philadelphia, Pennsylvania. The purpose of this symposium was to provide a venue for basic science and clinical researchers and expert clinicians to discuss muscle quality in the context of skeletal muscle function deficit and other aging-related muscle dysfunctions. The present article provides an expanded introduction concerning the emerging definitions of muscle quality and a potential framework for scientific inquiry within the field. Changes in muscle tissue composition, based on excessive levels of inter- and intra-muscular adipose tissue and intramyocellular lipids, have been found to adversely impact metabolism and peak force generation. However, methods to easily and rapidly assess muscle tissue composition in multiple clinical settings and with minimal patient burden are needed. Diagnostic ultrasound and other assessment methods continue to be developed for characterizing muscle pathology, and enhanced sonography using sensors to provide user feedback and improve reliability is currently the subject of ongoing investigation and development. In addition, measures of relative muscle force such as specific force or grip strength adjusted for body size have been proposed as methods to assess changes in muscle quality. Furthermore, performance-based assessments of muscle power via timed tests of function and body size estimates, are associated with lower extremity muscle strength may be responsive to age-related changes in muscle quality. Future aims include reaching consensus on the definition and standardized assessments of muscle quality, and providing recommendations to address critical clinical and technology research gaps within the field.

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Section: Measuring and Controlling Acquisition State In Quantitative mentioning

confidence: 99%

The Need for Standardized Assessment of Muscle Quality in Skeletal Muscle Function Deficit and Other Aging-Related Muscle Dysfunctions: A Symposium Report

et al. 2017

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“…For example, many studies used transrectal or transvaginal transducers for 3-D US imaging, did not provide a detailed explanation about their method of 3-D US reconstruction, but only the 3-D volume results. Short analyses and descriptions of the remaining 45 papers (Boctor et al 2001;Chen et al 2009Chen et al , 2014Coupe et al 2007;Deng et al 2012;Fenster et al 2011;Gee et al 2002Gee et al , 2004Gilliam et al 2006;Hassenpflug et al 2005;Housden et al 2006aHousden et al , 2007Zheng 2006a, 2008;Huang et al , 2009bHuang et al , 2013Huang et al , 2015Karamalis et al 2009;Kohyama et al 2005;Lindseth et al 2003;MacGillivray et al 2009;Pagoulatos et al 2000;Penney et al 2004;Poon and Rohling 2006;Prager et al 2002Prager et al , 1999Qiu et al 2011;Roxborough and Nielson 2000;San Jos e-Est epar et al 2003;Sanches and Marques 2003;Scheipers et al 2010;Sun and Anthony 2012;Sun et al 2013Sun et al , 2014Toonkum et al 2011;Treece et al 2001a;Varandas et al 2004;Wen et al 2013Wen et al , 2015Yu et al 2006a…”

Section: Article Selection and Analysismentioning

confidence: 99%

Freehand 3-D Ultrasound Imaging: A Systematic Review

Mozaffari

Lee

2017

Ultrasound in Medicine & Biology

107

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Two-dimensional ultrasound (US) imaging has been successfully used in clinical applications as a low-cost, portable and non-invasive image modality for more than three decades. Recent advances in computer science and technology illustrate the promise of the 3-D US modality as a medical imaging technique that is comparable to other prevalent modalities and that overcomes certain drawbacks of 2-D US. This systematic review covers freehand 3-D US imaging between 1970 and 2017, highlighting the current trends in research fields, the research methods, the main limitations, the leading researchers, standard assessment criteria and clinical applications. Freehand 3-D US systems are more prevalent in the academic environment, whereas in clinical applications and industrial research, most studies have focused on 3-D US transducers and improvement of hardware performance. This topic is still an interesting active area for researchers, and there remain many unsolved problems to be addressed.

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“…fiducial-free) with a small camera mounted to the ultrasound probe [14][15][16] . The system comprises: (1) an optical camera kinematically coupled to an US transducer, Figure 8, (2) software that extracts unique skin features, and (3) software that localizes the transducer by tracking the skin features [14][15][16][17] .…”

Section: Skin As a Body Position Encoding Systemmentioning

confidence: 99%

“…We generate a spatially accurate three-dimensional data set from a standard optically tracked two-dimensional sonogram; using this system we are able to approximately register/re-locate an US probe on patient's body at a known location and orientation as separate instances in time with respect to patient coordinates and not room coordinates [14][15][16] . The 3D data set could be used to generate multi-planar images which should be near indistinguishable from directly acquired US images 17 . This has several implications; sonograms can be reformatted in any plane, allowing comparison of matched images across serial examinations, and (large-volume) volumetric sonography can be accomplished.…”

Section: Skin As a Body Position Encoding Systemmentioning

confidence: 99%

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Enhanced ultrasound for advanced diagnostics, ultrasound tomography for volume limb imaging and prosthetic fitting

Anthony

2016

SPIE Proceedings

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Ultrasound imaging methods hold the potential to deliver low-cost, high-resolution, operator-independent and nonionizing imaging systems -such systems couple appropriate algorithms with imaging devices and techniques. The increasing demands on general practitioners motivate us to develop more usable and productive diagnostic imaging equipment. Ultrasound, specifically freehand ultrasound, is a low cost and safe medical imaging technique. It doesn't expose a patient to ionizing radiation. Its safety and versatility make it very well suited for the increasing demands on general practitioners, or for providing improved medical care in rural regions or the developing world. However it typically suffers from sonographer variability; we will discuss techniques to address user variability.We also discuss our work to combine cylindrical scanning systems with state of the art inversion algorithms to deliver ultrasound systems for imaging and quantifying limbs in 3-D in vivo. Such systems have the potential to track the progression of limb health at a low cost and without radiation exposure, as well as, improve prosthetic socket fitting. Current methods of prosthetic socket fabrication remain subjective and ineffective at creating an interface to the human body that is both comfortable and functional. Though there has been recent success using methods like magnetic resonance imaging and biomechanical modeling, a low-cost, streamlined, and quantitative process for prosthetic cup design and fabrication has not been fully demonstrated. Medical ultrasonography may inform the design process of prosthetic sockets in a more objective manner. This keynote talk presents the results of progress in this area.

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Probe Localization for Freehand 3D Ultrasound by Tracking Skin Features

Cited by 22 publications

References 12 publications

The Need for Standardized Assessment of Muscle Quality in Skeletal Muscle Function Deficit and Other Aging-Related Muscle Dysfunctions: A Symposium Report

The Need for Standardized Assessment of Muscle Quality in Skeletal Muscle Function Deficit and Other Aging-Related Muscle Dysfunctions: A Symposium Report

Freehand 3-D Ultrasound Imaging: A Systematic Review

Enhanced ultrasound for advanced diagnostics, ultrasound tomography for volume limb imaging and prosthetic fitting

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