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Author
Carles Sanchez; Jorge Bernal; F. Javier Sanchez; Antoni Rosell; Marta Diez-Ferrer; Debora Gil
Title
Towards On-line Quantification of Tracheal Stenosis from Videobronchoscopy
Type
Journal Article
Year
2015
Publication
International Journal of Computer Assisted Radiology and Surgery
Abbreviated Journal
IJCAR
Volume
10
Issue
6
Pages
935-945
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
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Summary Language
Original Title
Series Editor
Series Title
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ISBN
Medium
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Conference
Notes
IAM; MV; 600.075
Approved
no
Call Number
Admin @ si @ SBS2015a
Serial
2611
Permanent link to this record
Author
Carles Sanchez; Debora Gil; R. Tazi; Jorge Bernal; Y. Ruiz; L. Planas; F. Javier Sanchez; Antoni Rosell
Title
Quasi-real time digital assessment of Central Airway Obstruction
Type
Conference Article
Year
2015
Publication
3rd European congress for bronchology and interventional pulmonology ECBIP2015
Abbreviated Journal
Volume
Issue
Pages
Keywords
Abstract
Address
Barcelona; Spain; April 2015
Corporate Author
Thesis
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Summary Language
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ECBIP
Notes
IAM; MV; 600.075
Approved
no
Call Number
SGT2015
Serial
2612
Permanent link to this record
Author
Carles Sanchez; Jorge Bernal; F. Javier Sanchez; Marta Diez-Ferrer; Antoni Rosell; Debora Gil
Title
Towards On-line Quantification of Tracheal Stenosis from Videobronchoscopy
Type
Conference Article
Year
2015
Publication
6th International Conference on Information Processing in Computer-Assisted Interventions IPCAI2015
Abbreviated Journal
Volume
10
Issue
6
Pages
935-945
Keywords
Abstract
PURPOSE:
Lack of objective measurement of tracheal obstruction degree has a negative impact on the chosen treatment prone to lead to unnecessary repeated explorations and other scanners. Accurate computation of tracheal stenosis in videobronchoscopy would constitute a breakthrough for this noninvasive technique and a reduction in operation cost for the public health service.
METHODS:
Stenosis calculation is based on the comparison of the region delimited by the lumen in an obstructed frame and the region delimited by the first visible ring in a healthy frame. We propose a parametric strategy for the extraction of lumen and tracheal ring regions based on models of their geometry and appearance that guide a deformable model. To ensure a systematic applicability, we present a statistical framework to choose optimal parametric values and a strategy to choose the frames that minimize the impact of scope optical distortion.
RESULTS:
Our method has been tested in 40 cases covering different stenosed tracheas. Experiments report a non- clinically relevant [Formula: see text] of discrepancy in the calculated stenotic area and a computational time allowing online implementation in the operating room.
CONCLUSIONS:
Our methodology allows reliable measurements of airway narrowing in the operating room. To fully assess its clinical impact, a prospective clinical trial should be done.
Address
Barcelona; Spain; June 2015
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
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Series Volume
Series Issue
Edition
ISSN
ISBN
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Area
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Conference
IPCAI
Notes
IAM; MV; 600.075
Approved
no
Call Number
Admin @ si @ SBS2015b
Serial
2613
Permanent link to this record
Author
Sergio Vera; Miguel Angel Gonzalez Ballester; Debora Gil
Title
A Novel Cochlear Reference Frame Based On The Laplace Equation
Type
Conference Article
Year
2015
Publication
29th international Congress and Exhibition on Computer Assisted Radiology and Surgery
Abbreviated Journal
Volume
10
Issue
1
Pages
1-312
Keywords
Abstract
Poster
Address
Barcelona; Spain; June 2015
Corporate Author
Thesis
Publisher
Place of Publication
Editor
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Summary Language
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CARS
Notes
IAM; 600.075
Approved
no
Call Number
Admin @ si @ VGG2015
Serial
2615
Permanent link to this record
Author
Hanne Kause; Patricia Marquez; Andrea Fuster; Aura Hernandez-Sabate; Luc Florack; Debora Gil; Hans van Assen
Title
Quality Assessment of Optical Flow in Tagging MRI
Type
Conference Article
Year
2015
Publication
5th Dutch Bio-Medical Engineering Conference BME2015
Abbreviated Journal
Volume
Issue
Pages
Keywords
Abstract
Address
The Netherlands; January 2015
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BME
Notes
IAM; ADAS; 600.076; 600.075
Approved
no
Call Number
Admin @ si @ KMF2015
Serial
2616
Permanent link to this record
Author
Gloria Fernandez Esparrach; Jorge Bernal; Cristina Rodriguez de Miguel; Debora Gil; Fernando Vilariño; Henry Cordova; Cristina Sanchez Montes; I.Araujo ; Maria Lopez Ceron; J.Llach; F. Javier Sanchez
Title
Colonic polyps are correctly identified by a computer vision method using wm-dova energy maps
Type
Conference Article
Year
2015
Publication
Proceedings of 23 United European- UEG Week 2015
Abbreviated Journal
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Issue
Pages
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Address
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Summary Language
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UEG
Notes
MV; IAM; 600.075;SIAI
Approved
no
Call Number
Admin @ si @ FBR2015
Serial
2732
Permanent link to this record
Author
Hanne Kause; Aura Hernandez-Sabate; Patricia Marquez; Andrea Fuster; Luc Florack; Hans van Assen; Debora Gil
Title
Confidence Measures for Assessing the HARP Algorithm in Tagged Magnetic Resonance Imaging
Type
Book Chapter
Year
2015
Publication
Statistical Atlases and Computational Models of the Heart. Revised selected papers of Imaging and Modelling Challenges 6th International Workshop, STACOM 2015, Held in Conjunction with MICCAI 2015
Abbreviated Journal
Volume
9534
Issue
Pages
69-79
Keywords
Abstract
Cardiac deformation and changes therein have been linked to pathologies. Both can be extracted in detail from tagged Magnetic Resonance Imaging (tMRI) using harmonic phase (HARP) images. Although point tracking algorithms have shown to have high accuracies on HARP images, these vary with position. Detecting and discarding areas with unreliable results is crucial for use in clinical support systems. This paper assesses the capability of two confidence measures (CMs), based on energy and image structure, for detecting locations with reduced accuracy in motion tracking results. These CMs were tested on a database of simulated tMRI images containing the most common artifacts that may affect tracking accuracy. CM performance is assessed based on its capability for HARP tracking error bounding and compared in terms of significant differences detected using a multi comparison analysis of variance that takes into account the most influential factors on HARP tracking performance. Results showed that the CM based on image structure was better suited to detect unreliable optical flow vectors. In addition, it was shown that CMs can be used to detect optical flow vectors with large errors in order to improve the optical flow obtained with the HARP tracking algorithm.
Address
Munich; Germany; January 2015
Corporate Author
Thesis
Publisher
Springer International Publishing
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
978-3-319-28711-9
Medium
Area
Expedition
Conference
STACOM
Notes
ADAS; IAM; 600.075; 600.076; 600.060; 601.145
Approved
no
Call Number
Admin @ si @ KHM2015
Serial
2734
Permanent link to this record
Author
Gloria Fernandez Esparrach; Jorge Bernal; Cristina Rodriguez de Miguel; Debora Gil; Fernando Vilariño; Henry Cordova; Cristina Sanchez Montes; Isis Ara
Title
Utilidad de la visión por computador para la localización de pólipos pequeños y planos
Type
Conference Article
Year
2016
Publication
XIX Reunión Nacional de la Asociación Española de Gastroenterología, Gastroenterology Hepatology
Abbreviated Journal
Volume
39
Issue
2
Pages
94
Keywords
Abstract
Address
Madrid (Spain)
Corporate Author
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Publisher
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Editor
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AEGASTRO
Notes
MV; IAM; 600.097;SIAI
Approved
no
Call Number
Admin @ si @FBR2016
Serial
2779
Permanent link to this record
Author
Antonio Esteban Lansaque; Carles Sanchez; Agnes Borras; Marta Diez-Ferrer; Antoni Rosell; Debora Gil
Title
Stable Airway Center Tracking for Bronchoscopic Navigation
Type
Conference Article
Year
2016
Publication
28th Conference of the international Society for Medical Innovation and Technology
Abbreviated Journal
Volume
Issue
Pages
Keywords
Abstract
Bronchoscopists use X‐ray fluoroscopy to guide bronchoscopes to the lesion to be biopsied without any kind of incisions. Reducing exposure to X‐ray is important for both patients and doctors but alternatives like electromagnetic navigation require specific equipment and increase the cost of the clinical procedure. We propose a guiding system based on the extraction of airway centers from intra‐operative videos. Such anatomical landmarks could be
matched to the airway centerline extracted from a pre‐planned CT to indicate the best path to the lesion. We present an extraction of lumen centers
from intra‐operative videos based on tracking of maximal stable regions of energy maps.
Address
Delft; Rotterdam; Leiden; The Netherlands; October 2016
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SMIT
Notes
IAM;
Approved
no
Call Number
Admin @ si @ LSB2016a
Serial
2856
Permanent link to this record
Author
H. Martin Kjer; Jens Fagertuna; Sergio Vera; Debora Gil; Miguel Angel Gonzalez Ballester; Rasmus R. Paulsena
Title
Free-form image registration of human cochlear uCT data using skeleton similarity as anatomical prior
Type
Journal Article
Year
2016
Publication
Patter Recognition Letters
Abbreviated Journal
PRL
Volume
76
Issue
1
Pages
76-82
Keywords
Abstract
Address
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Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
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Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
IAM; 600.060
Approved
no
Call Number
Admin @ si @ MFV2017b
Serial
2941
Permanent link to this record
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