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Author
Debora Gil;Agnes Borras;Ruth Aris;Mariano Vazquez;Pierre Lafortune; Guillame Houzeaux
Title
What a difference in biomechanics cardiac fiber makes
Type
Conference Article
Year
2012
Publication
Statistical Atlases And Computational Models Of The Heart: Imaging and Modelling Challenges
Abbreviated Journal
Volume
7746
Issue
Pages
253-260
Keywords
Abstract
Computational simulations of the heart are a powerful tool for a comprehensive understanding of cardiac function and its intrinsic relationship with its muscular architecture. Cardiac biomechanical models require a vector field representing the orientation of cardiac fibers. A wrong orientation of the fibers can lead to a
non-realistic simulation of the heart functionality. In this paper we explore the impact of the fiber information on the simulated biomechanics of cardiac muscular anatomy. We have used the John Hopkins database to perform a biomechanical simulation using both a synthetic benchmark fiber distribution and the data obtained experimentally from DTI. Results illustrate how differences in fiber orientation affect heart deformation along cardiac cycle.
Address
Nice, France
Corporate Author
Thesis
Publisher
Springer Berlin Heidelberg
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0302-9743
ISBN
978-3-642-36960-5
Medium
Area
Expedition
Conference
STACOM
Notes
IAM
Approved
no
Call Number
IAM @ iam @ GBA2012
Serial
1987
Permanent link to this record
Author
Debora Gil; Agnes Borras; Sergio Vera; Miguel Angel Gonzalez Ballester
Title
A Validation Benchmark for Assessment of Medial Surface Quality for Medical Applications
Type
Conference Article
Year
2013
Publication
9th International Conference on Computer Vision Systems
Abbreviated Journal
Volume
7963
Issue
Pages
334-343
Keywords
Medial Surfaces; Shape Representation; Medical Applications; Performance Evaluation
Abstract
Confident use of medial surfaces in medical decision support systems requires evaluating their quality for detecting pathological deformations and describing anatomical volumes. Validation in the medical imaging field is a challenging task mainly due to the difficulties for getting consensual ground truth. In this paper we propose a validation benchmark for assessing medial surfaces in the context of medical applications. Our benchmark includes a home-made database of synthetic medial surfaces and volumes and specific scores for evaluating surface accuracy, its stability against volume deformations and its capabilities for accurate reconstruction of anatomical volumes.
Address
Sant Petersburg; Russia; July 2013
Corporate Author
Thesis
Publisher
Springer Berlin Heidelberg
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
LNCS
Series Volume
Series Issue
Edition
ISSN
0302-9743
ISBN
978-3-642-39401-0
Medium
Area
Expedition
Conference
ICVS
Notes
IAM; 600.044; 600.060
Approved
no
Call Number
Admin @ si @ GBV2013
Serial
2300
Permanent link to this record
Author
Esmitt Ramirez; Carles Sanchez; Agnes Borras; Marta Diez-Ferrer; Antoni Rosell; Debora Gil
Title
Image-Based Bronchial Anatomy Codification for Biopsy Guiding in Video Bronchoscopy
Type
Conference Article
Year
2018
Publication
OR 2.0 Context-Aware Operating Theaters, Computer Assisted Robotic Endoscopy, Clinical Image-Based Procedures, and Skin Image Analysis
Abbreviated Journal
Volume
11041
Issue
Pages
Keywords
Biopsy guiding; Bronchoscopy; Lung biopsy; Intervention guiding; Airway codification
Abstract
Bronchoscopy examinations allow biopsy of pulmonary nodules with minimum risk for the patient. Even for experienced bronchoscopists, it is difficult to guide the bronchoscope to most distal lesions and obtain an accurate diagnosis. This paper presents an image-based codification of the bronchial anatomy for bronchoscopy biopsy guiding. The 3D anatomy of each patient is codified as a binary tree with nodes representing bronchial levels and edges labeled using their position on images projecting the 3D anatomy from a set of branching points. The paths from the root to leaves provide a codification of navigation routes with spatially consistent labels according to the anatomy observes in video bronchoscopy explorations. We evaluate our labeling approach as a guiding system in terms of the number of bronchial levels correctly codified, also in the number of labels-based instructions correctly supplied, using generalized mixed models and computer-generated data. Results obtained for three independent observers prove the consistency and reproducibility of our guiding system. We trust that our codification based on viewer’s projection might be used as a foundation for the navigation process in Virtual Bronchoscopy systems.
Address
Granada; September 2018
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
LNCS
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
MICCAIW
Notes
IAM; 600.096; 600.075; 601.323; 600.145
Approved
no
Call Number
Admin @ si @ RSB2018b
Serial
3137
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