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Rapid calibration for 3-D freehand ultrasound.
3-D freehand ultrasound is a new imaging technique that is rapidly finding clinical applications. A position-sensing device is attached to a conventional ultrasound probe so that, as B-scans areExpand
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Freehand 3D Ultrasound Calibration: A Review
Freehand three-dimensional (3D) ultrasound is a technique for acquiring 3D ultrasound data by measuring the trajectory of a conventional 2D ultrasound probe as a clinician moves it across an objectExpand
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Stradx: real-time acquisition and visualization of freehand three-dimensional ultrasound
Conventional freehand three-dimensional (3-D) ultrasound is a multi-stage process. First, the clinician scans the area of interest. Next, the ultrasound data is used to construct a 3-D voxel array,Expand
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High-definition freehand 3-D ultrasound.
This paper describes a high-definition freehand 3-D ultrasound (US) system, with accuracy surpassing that of previously documented systems. 3-D point location accuracy within a US data set can beExpand
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Engineering a freehand 3D ultrasound system
This article surveys current techniques for the acquisition, visualisation and quantitative analysis of three-dimensional ultrasound data. Particular attention is paid to the design andExpand
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Realisable Classifiers: Improving Operating Performance on Variable Cost Problems
A novel method is described for obtaining superior classification performance over a variable range of classification costs. By analysis of a set of existing classifiers using a receiver operatingExpand
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Fetal head moulding: finite element analysis of a fetal skull subjected to uterine pressures during the first stage of labour.
Fetal head moulding is a phenomenon which may contribute to satisfactory progress during delivery as it allows the fetal head to accommodate to the geometry of the passage. In contrast, excessiveExpand
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A quality-guided displacement tracking algorithm for ultrasonic elasticity imaging
Displacement estimation is a key step in the evaluation of tissue elasticity by quasistatic strain imaging. An efficient approach may incorporate a tracking strategy whereby each estimate isExpand
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Sensorless freehand 3D ultrasound in real tissue: Speckle decorrelation without fully developed speckle
It has previously been demonstrated that freehand 3D ultrasound can be acquired without a position sensor by measuring the elevational speckle decorrelation from frame to frame. However, thisExpand
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Development of low entropy coding in a recurrent network.
In this paper we present an unsupervised neural network which exhibits competition between units via inhibitory feedback. The operation is such as to minimize reconstruction error, both forExpand
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