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Fully automated segmentation of carotid and vertebral arteries from CTA
No opinion
We propose a method for segmenting and labeling the main head and neck vessels (common, internal, external carotid and vertebral arteries) from a contrast enhanced computed tomography angiography (CTA) volume. First, an initial centerline of each vessel is [...]

TiCoLi - An Open Software Library for Device Integration in the Digital OR based on Open Software and Open Standards
No opinion
Purpose The lack of interfaces for system integration in the Operating Room (OR) has been recognized as one of the major factors to impede efficient OR turnover procedures as well as efficient intraoperative data handling and ergonomics in the OR. A software [...]

Segmenting the Left Ventricle in 3D Using a Coupled ASM and a Learned Non-Rigid Spatial Model
No opinion
This paper presents a new approach to higher dimensional segmentation. We present an extended Active Shape Model (ASM) formulation for the segmentation of multi-contour anatomical structures. We employ coupling and weighting schemes to improve the robustness [...]

Steps towards the Integration of Model Guided Therapy Systems into the Healthcare Environment
No opinion
Hospital Information Systems (HIS) are the primary source of information in clinical routine. In most clinics and medical centers, an electronic health record (EHR) stores relevant patient information which is passed between sub-systems using the ISO standard [...]

Model-based left ventricle segmentation in 3D ultrasound using phase image
No opinion
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 [...]

A VTK Algorithm for the Computation of the Hausdorff Distance
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The Hausdorff distance is a measure of the distance between sets of points. There are many advantages to using this metric compared to other similarity measures. This document describes a VTK class for computing the Hausdorff Distance between two sets of [...]

Automatic Segmentation of Structures in CT Head and Neck Images using a Coupled Shape Model
No opinion
The common approach to do a fully automatic segmentation of multiple structures is an atlas or multi-atlas based solution. These already have proven to be suitable for the segmentation of structures in the head and neck area and provide very accurate [...]

The Generalised Image Fusion Toolkit (GIFT)
No opinion
Image fusion provides a mechanism to combine multiple images into a single representation to aid human visual perception and image processing tasks. Such algorithms endeavour to create a fused image containing the salient information from each source image, [...]

Coronary Centerline Extraction Using Multiple Hypothesis Tracking and Minimal Paths
No opinion
This paper describes an interactive approach to the identification of coronary arteries in 3D angiography images. The approach is based on a novel multiple hypothesis tracking methodology which is complemented with a standard minimal path search, and it [...]

A DICOM-based streaming service for the Digital Operating Room
No opinion
In the Digital Operating Room there is a need to support data streaming to create advanced integrated surgical assist systems. In this paper we propose a DICOM-based streaming mechanism which leverages the interoperability definitions offered by DICOM to [...]

IHE in Surgery - Proposal for a new IHE domain
No opinion
IHE (Integrating the Healthcare Enterprise) gives guidelines on which standards in medicine shall be used in which way to achieve a specific goal. Therefore, IHE can serve as a basis to promote the usage of open standards in Computer Assisted Interventions. [...]

User Interface Integration and Remote Control for Modular Surgical Assist Systems
No opinion
Today’s operating rooms consist of numerous medical devices, clinical IT systems and systems for computer assisted surgery. The majority of these systems comes from different vendors and has different user interface designs and interaction schemes. This [...]

The Role of DICOM for Modular Perioperative Surgical Assist Systems Design
No opinion
This document describes the role of DICOM as one major standard which will enable interoperability between systems used for surgical planning, intraoperative surgical assist systems and postoperative documentation. We first give an brief overview about DICOM [...]

Anomalous Diffusion Paradigm for Image Denoising Process
No opinion
Anisotropic and isotropic diffusion equations have been extensively applied on biomedical image processing for many years and a great diversity of algorithm have been proposed by the scientific community. Here, it is available a recent new implementation of [...]

Multidimensional Arrays and the nArray Package
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At the Johns Hopkins University’s Engineering Research Center for Computer-Integrated Surgical Systems and Technology (ERC-CISST) laboratory, we have designed and developed a platformindependent C++ software package, called the nArray library, that provides [...]

Integration of Fuzzy Mathematical Morphology and Fuzzy Spatial Relationships into ITK
No opinion
The aim of this paper is to present the integration of new filters computing fuzzy mathematical morphology and spatial relationships into ITK and to share our experience with the Open source community. Our implementation architecture follows the essential [...]

A framework for data and context integration in the modular digital OR
No opinion
Today, OR planning is supported by different clinical information systems. However, relevant patient information is distributed and spread over separate heterogeneous information systems (HIS, RIS, PACS), where each requires its own login and user interaction [...]

Importing Contours from DICOM-RT Structure Sets
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This paper presents parsing software for importing contours from DICOM RT structure set files into binary image files. This is a common requirement for transferring expert manual segmentations from radiotherapy treatment planning software into external image [...]

The graph windowed Fourier transform: a tool to quantify the gyrification of the cerebral cortex
No opinion
The Gyrification Index (GI) quantifies the amount of folding of a cortical surface. In this paper, we show the efficiency of spectral analysis to perform such a task, and in particular we explain how the graph windowed Fourier transform can be used as a tool [...]

GPU and CPU implementation of Young - Van Vliet's Recursive Gaussian Smoothing Filter
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This document describes an implementation for GPU and CPU of Young and Van Vliet's recursive Gaussian smoothing as an external module for the Insight Toolkit ITK, version 4.* www.itk.org. In the absence of an OpenCL-capable platform, the code will run the CPU [...]

Fast Tracking of the Left Ventricle Using Global Anatomical Affine Optical Flow and Local Recursive Block Matching
No opinion
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 [...]

Learning Shape Representations for Multi-Atlas Endocardium Segmentation in 3D Echo Images
No opinion
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
No opinion
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 [...]

Applying Image Mining to Support Gestational Age Determination
No opinion
The gestational age (GA) determination is one of the most used measures to guide diagnostics of specialists in neonatology to guarantee the newborn surveillance. However, the currently available methods have been subject to a number of evaluations and [...]

Development of open source software for computer-assisted intervention systems
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We are developing open source software for computer assisted intervention systems. Our primary experience has been with medical robots, but the concepts (and software) apply to many physical devices that interact with the real world. The real-time [...]

Coronary Artery Centerline Tracking Using Axial Symmetries
No opinion
We present a method for tracking a coronary artery centerline given a single user supplied distal endpoint. Briefly, we first isolate the aorta and compute its surface. Next, we apply a novel two-stage Hough-like election scheme to the image volume to detect [...]

On What Manifold do Diffusion Tensors Live?
No opinion
Diffusion tensor imaging has become an important research and clinical tool, owing to its unique ability to infer microstructural properties of living tissue. Increased use has led to a demand for statistical tools to analyze diffusion tensor data and [...]

An integrated OR system based on open standards
No opinion
An open standards based modular OR integration system was designed, which is modelled as component-based service-oriented architecture. Medical devices, IT hardware, and software are integrated as independent components and interconnected through a TCP/IP [...]

Automatic Segmentation of Head and Neck CT Images by GPU-Accelerated Multi-atlas Fusion
No opinion
Treatment planning for high precision radiotherapy of head and neck (H&N) cancer patients requires accurate delineation of critical structures. Manual contouring is tedious and often suffers from large inter- and intra-rater variability. In this paper, we [...]

Challenge on Endocardial Three-dimensional Ultrasound Segmentation (CETUS)
No opinion
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 [...]

An ITK Implementation of Physics-based Non-rigid Registration Method
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As part of the ITK v4 project efforts, we have developed ITK filters for physics-based non-rigid registration (PBNRR), which satisfies the following requirements: account for tissue properties in the registration, improve accuracy compared to rigid [...]

InsightToolkit Kinetic Analysis (itk::ka) Library
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This paper describes how to compile and use the Insight Toolkit Kinetic Analysis library (itk::ka), to perform analysis of dynamic medical images, along with a brief overview of the library source code. Supplied, are a set of interfaces to facilitate [...]

Nearly automatic vessels segmentation using graph-based energy minimization
No opinion
We present a nearly automatic tool for the accurate segmentation of vascular structures in volumetric CTA images. Its inputs are a start and an end seed points inside the vessel. The two-step graph-based energy minimization method starts by computing the [...]

CustusX: A Research Application for Image-Guided Therapy
No opinion
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 [...]

3D Segmentation in the Clinic: A Grand  Challenge II: MS lesion segmentation
No opinion
This paper describes the setup of a segmentation competition for the automatic extraction of Multiple Sclerosis (MS) lesions from brain Magnetic Resonance Imaging (MRI) data. This competition is one of three competitions that make up a comparison workshop at [...]

Clinical Expert Delineation of 3D Left Ventricular Echocardiograms for the CETUS Segmentation Challenge
No opinion
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 [...]


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ISSN 2328-3459
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