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Implementation of the PLUS open-source toolkit for translational research of ultrasound-guided intervention systems
Published in The MIDAS Journal
Published in The MIDAS Journal
This document describes the design of the PLUS (Public software Library for Ultrasound) open-source toolkit. The toolkit provides a basic infrastructure for implementing ultrasound-guided intervention systems. Functionalities include collection of [...]
Segmentation of Multi-Center 3D Left Ventricular Echocardiograms by Active Appearance Models
Published in The MIDAS Journal
Published in The MIDAS Journal
Segmentation of 3D echocardiograms (3DEs) is still a challenging task due to the low signal-to-noise ratio, the limited field of view, and typical ultrasound artifacts. We propose to segment the left ventricular endocardial surface by using Active Appearance [...]
Model-based left ventricle segmentation in 3D ultrasound using phase image
Published in The MIDAS Journal
Published in The MIDAS Journal
In this paper, we propose a semi-automatic method for left ventricle segmentation. The proposed method utilizes a multi-scale quadrature filter method to enhance the 3D volume, followed by a model-based level set method to segment the endocardial surface of [...]
Real-time Tracking of the Left Ventricle in 3D Ultrasound Using Kalman Filter and Mean Value Coordinates
Published in The MIDAS Journal
Published in The MIDAS Journal
A method for real-time automatic tracking of the left ventricle (LV) in 3D ultrasound is presented. A mesh model of the LV is deformed using mean value coordinates enabling large variations. Kalman filtering and edge detection is used to track the mesh in [...]
Left Ventricle Segmentation in Cardiac Ultrasound Using Hough-Forests With Implicit Shape and Appearance Priors
Published in The MIDAS Journal
Published in The MIDAS Journal
We propose a learning based approach to perform automatic segmentation of the left ventricle in 3D cardiac ultrasound images. The segmentation contour is estimated through the use of a variant of Hough forests whose object localization capabilities are [...]
Learning Shape Representations for Multi-Atlas Endocardium Segmentation in 3D Echo Images
Published in The MIDAS Journal
Published in The MIDAS Journal
As part of the CETUS challenge, we present a multi-atlas segmentation framework to delineate the left-ventricle endocardium in echocardiographic images. To increase the robustness of the registration step, we introduce a speckle reduction step and a new shape [...]
Endocardial 3D Ultrasound Segmentation using Autocontext Random Forests
Published in The MIDAS Journal
Published in The MIDAS Journal
In this paper, we present the use of a generic image segmentation method, namely a succession of Random Forest classifiers in an autocontext framework, for the MICCAI 2014 Challenge on Endocardial 3D Ultrasound Segmentation (CETUS). The proposed method [...]
Endocardial Segmentation using Structured Random Forests in 3D Echocardiography
Published in The MIDAS Journal
Published in The MIDAS Journal
Segmentation of the left ventricle endocardium in 3D echocardiography is a critical step for the diagnosis of heart disease. Although recent work has shown effective endocardial edge detection, these techniques still preserve spurious anatomical edge [...]
This document describes the derivation of the mixture models commonly used in the literature to describe the probabilistic nature of speckle: The Gaussian Mixture Model, the Rayleigh Mixture Model, the Gamma Mixture Model and the Generalized Gamma Mixture [...]
An Open Source, Fast Ultrasound B-Mode Implementation for Commodity Hardware
Published in The Insight Journal
Published in The Insight Journal
This document describes an open source, high performance ultrasound B-Mode implementation based on the Insight Toolkit (ITK). ITK extensions are presented to calculate the radio-frequency (RF) signal envelope. A variety of 1D Fast Fourier Transform options [...]
Automatized Evaluation of the Left Ventricular Ejection Fraction from Echocardiographic Images Using Graph Cut
Published in The MIDAS Journal
Published in The MIDAS Journal
In this paper, we present a fast and interactive graph cut method for 3D segmentation of the endocardial wall of the left ventricle (LV) given 3D echocardiographic images. This is a challenging task due to the poor contrast and the low signal-to-noise ratio [...]
Challenge on Endocardial Three-dimensional Ultrasound Segmentation (CETUS)
Published in The MIDAS Journal
Published in The MIDAS Journal
Real-time 3D echocardiography has already been shown to be an accurate tool for left ventricular (LV) volume assessment. However, LV border identification remains a challenging task, mainly because of the low contrast of the images combined with drop-out [...]
Clinical Expert Delineation of 3D Left Ventricular Echocardiograms for the CETUS Segmentation Challenge
Published in The MIDAS Journal
Published in The MIDAS Journal
Within the framework of the CETUS challenge, forty-five 3D echocardiographic datasets have been acquired and segmented independently by three clinical experts from different hospitals. The goal was to generate a well-established ground truth of validated [...]
We have successfully created a software environment in which ultrasound data can be manipulated by, ITK (the Insight Tool-Kit), in real-time. We were able to access each frame generated within the resident computer of a TerasonTM Ultrasound Machine, convert [...]
CustusX version 3 is an in-house application for research in image-guided therapy with a focus on intraoperative use and ultrasound imaging. It is built upon open source toolkits such as the Insight Toolkit (ITK), the Visualization Toolkit (VTK), Qt and [...]
A C++ file reader for the VisualSonics Vevo® 770 high frequency ultrasound system is presented. The digital RF header file is read into an XML DOM representation, which can be serialized as XML, HTML, or accessed in C++ natively with data object binding. [...]
MUSiiC ToolKit 2.0: Bidirectional Real-time Software Framework for Advanced Interventional Ultrasound Research
Published in The MIDAS Journal
Published in The MIDAS Journal
Ultrasound (US) imaging is a popular and convenient medical imaging modality thanks to its mobility, non-ionizing radiation, ease-of-use, and real-time acquisition. Conventional US imaging is frequently integrated with tracking systems and robotic systems in [...]
Fast Tracking of the Left Ventricle Using Global Anatomical Affine Optical Flow and Local Recursive Block Matching
Published in The MIDAS Journal
Published in The MIDAS Journal
We present a novel method for segmentation and tracking of the left ventricle (LV) in 4D ultrasound sequences using a combination of automatic segmentation at the end-diastolic frame and tracking using both a global optical flow-based tracker and local block [...]
The MUSiiC Toolkit: Modular Real-Time Toolkit for Advanced Ultrasound Research
Published in The MIDAS Journal
Published in The MIDAS Journal
Ultrasound is a very useful and convenient modality in medical imaging, due to its relatively small footprint, high resolution, negligible adverse effects, and real-time imaging capability -- in spite of its well-known artifacts. However, it is fairly [...]
OpenITGLinkMUSiiC: A Standard Communications Protocol for Advanced Ultrasound Research
Published in The MIDAS Journal
Published in The MIDAS Journal
Ultrasound imaging is the most popular and safe diagnostic medical imaging modality. Over the past years, a considerable number of studies have been conducted on new medical ultrasound imaging modalities such as ultrasound-based elasticity imaging, [...]
An Open-Source Solution for Interactive Acquisition, Processing and Transfer of Interventional Ultrasound Images
Published in The MIDAS Journal
Published in The MIDAS Journal
Ultrasound has become a very important modality in image-guided therapy. At present, however, the collection, synchronization and transfer of ultrasonic images are more cumbersome than necessary. This paper presents a reusable solution to these problems. We [...]
An open-source real-time ultrasound reconstruction system for four-dimensional imaging of moving organs
Published in The MIDAS Journal
Published in The MIDAS Journal
Four-dimensional imaging is a necessary step in computer-assisted interventions (CAI) performed on moving surgical targets, such as those located within the beating heart or influenced by respiratory motion. Ultrasound (US) is often the best imaging modality [...]
