Journal ArticleDOI
Three-dimensional ultrasound imaging.
Aaron Fenster,Donal B. Downey +1 more
TLDR
The development of a number of three-dimensional ultrasound imaging systems that make use of B mode, color Doppler, and power doppler are described, with regard to their applications and limitations.Abstract:
Two-dimensional viewing of three-dimensional anatomy by conventional ultrasound limits our ability to quantify and visualize a number of diseases and is partly responsible for the reported variability in diagnosis. Over the past two decades, many investigators have addressed this limitation by developing three-dimensional imaging techniques, including three-dimensional ultrasound imaging. In this paper we describe the development of a number of three-dimensional ultrasound imaging systems that make use of B mode, color Doppler, and power Doppler. In these systems, the conventional ultrasound transducer is scanned mechanically or by a freehand technique. The ultrasound images are digitized and then reconstructed into a three-dimensional volume, which can be viewed and manipulated interactively by the diagnostician with a variety of image-rendering techniques. These developments as well as future trends are discussed with regard to their applications and limitations.read more
Citations
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Journal ArticleDOI
Three-Dimensional Ultrasound Imaging
TL;DR: A review article describes the developments of a number of 3D ultrasound imaging systems using mechanical, free-hand and 2D array scanning techniques and the sources of errors in the reconstruction techniques as well as formulae relating design specification to geometric errors.
Journal ArticleDOI
A review of calibration techniques for freehand 3-D ultrasound systems.
TL;DR: This article is a comprehensive review of what has been published in the field of US probe calibration for 3-D US, covering the topics of tracking technologies, US image acquisition, phantom design, speed of sound issues, feature extraction, least-squares minimization, temporal calibration, calibration evaluation techniques and phantom comparisons.
Journal ArticleDOI
Segmentation of prostate boundaries from ultrasound images using statistical shape model
TL;DR: A hierarchical deformation strategy is employed, in which the model adaptively focuses on the similarity of different Gabor features at different deformation stages using a multiresolution technique, i.e., coarse features first and fine features later.
Journal ArticleDOI
Stromal Thickness in the Normal Cornea: Three-dimensional Display With Artemis Very High-frequency Digital Ultrasound
TL;DR: Three-dimensional thickness mapping of the corneal stroma and stromal thickness progression in a population of normal eyes represent a normative data set, which may help in early diagnosis of cornea abnormalities such as keratoconus and pellucid marginal degeneration.
Journal ArticleDOI
Computational cardiac atlases: from patient to population and back.
TL;DR: Efficient and robust statistical representations of cardiac morphology and morphodynamics can thereby be obtained, enabling quantitative analysis of images based on such representations, and statistical priors can be used to support cardiac image analysis with applications to advanced quantification and subject‐specific simulations of computational physiology.
References
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Journal ArticleDOI
Efficient ray tracing of volume data
TL;DR: This paper presents a front-to-back image-order volume-rendering algorithm and discusses two techniques for improving its performance, which employs a pyramid of binary volumes to encode spatial coherence present in the data and uses an opacity threshold to adaptively terminate ray tracing.
Journal ArticleDOI
3-D ultrasound imaging: a review
Aaron Fenster,D B Downey +1 more
TL;DR: Approaches that have been attempted in the development of 3-D ultrasound imaging such as3-D B-mode, color Doppler, and power doppler systems are reviewed.
Journal ArticleDOI
Beam steering with pulsed two-dimensional transducer arrays
Daniel H. Turnbull,F.S. Foster +1 more
TL;DR: The authors have undertaken a theoretical investigation of the focusing and steering properties of pulsed 2-D arrays to characterize the parameters required for medical imaging, such as element size, spacing, and number of elements.
Journal ArticleDOI
3D ultrasonic image feature localization based on magnetic scanhead tracking: in vitro calibration and validation
Paul R. Detmer,Gerard Bashein,Timothy Hodges,Kirk W. Beach,Eric P. Filer,David H. Burns,D.Eugene Strandness +6 more
TL;DR: The lower limits of variability to be expected from this 3D ultrasound imaging system when locating fiducial anatomical landmarks for repeated examinations of the same region of the body, and when making numerical 3D reconstructions from multiple planar images are established.
Journal ArticleDOI
A three-dimensional ultrasound prostate imaging system
TL;DR: A three-dimensional transrectal ultrasound imaging system, based on using a motorized 5 MHz transducer assembly, rotated under microcomputer control, to collect a series of 100 two-dimensional images, digitized by a video frame-grabber, shows that distance and volume measurements are both accurate to about +/- 1%, and that the reconstruction algorithm increases the mean FWHM by 8 +/-3% axially and 3 +/- 3% laterally.