| Records |
| Author |
Francesco Ciompi; Oriol Pujol; Carlo Gatta; Oriol Rodriguez-Leor; J. Mauri; Petia Radeva |
| Title |
Fusing in-vitro and in-vivo intravascular ultrasound data for plaque characterization |
Type |
Journal Article |
| Year |
2010 |
Publication |
International Journal of Cardiovascular Imaging |
Abbreviated Journal |
IJCI |
| Volume |
26 |
Issue |
7 |
Pages |
763–779 |
| Keywords |
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| Abstract |
Accurate detection of in-vivo vulnerable plaque in coronary arteries is still an open problem. Recent studies show that it is highly related to tissue structure and composition. Intravascular Ultrasound (IVUS) is a powerful imaging technique that gives a detailed cross-sectional image of the vessel, allowing to explore arteries morphology. IVUS data validation is usually performed by comparing post-mortem (in-vitro) IVUS data and corresponding histological analysis of the tissue. The main drawback of this method is the few number of available case studies and validated data due to the complex procedure of histological analysis of the tissue. On the other hand, IVUS data from in-vivo cases is easy to obtain but it can not be histologically validated. In this work, we propose to enhance the in-vitro training data set by selectively including examples from in-vivo plaques. For this purpose, a Sequential Floating Forward Selection method is reformulated in the context of plaque characterization. The enhanced classifier performance is validated on in-vitro data set, yielding an overall accuracy of 91.59% in discriminating among fibrotic, lipidic and calcified plaques, while reducing the gap between in-vivo and in-vitro data analysis. Experimental results suggest that the obtained classifier could be properly applied on in-vivo plaque characterization and also demonstrate that the common hypothesis of assuming the difference between in-vivo and in-vitro as negligible is incorrect. |
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| ISSN |
1569-5794 |
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| Notes |
MILAB;HUPBA |
Approved |
no |
Call Number  |
BCNPCL @ bcnpcl @ CPG2010 |
Serial |
1305 |
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| Author |
Francesco Ciompi; Oriol Pujol; E Fernandez-Nofrerias; J. Mauri; Petia Radeva |
| Title |
Conditional Random Fields for image segmentation in Intravascular Ultrasound |
Type |
Conference Article |
| Year |
2010 |
Publication |
Medical Image Computing in Catalunya: Graduate Student Workshop |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
13–14 |
| Keywords |
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| Abstract |
We present a Conditional Random Fields based approach for segmenting Intravascular Ultrasond (IVUS) images. The presented method uses a contextual discriminative graphical model to deal with the presence of distorsions and artifacts in IVUS images, that turns the segmentation of interesting regions into a difficult task. An accurate lumen segmentation on IVUS longitudinal images is achieved. |
| Address |
Girona |
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Conference |
MICCAT |
| Notes |
MILAB;HUPBA |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ CPF2010 |
Serial |
1453 |
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| Author |
Francesco Ciompi; Oriol Pujol; E Fernandez-Nofrerias; J. Mauri; Petia Radeva |
| Title |
ECOC Random Fields for Lumen Segmentation in Radial Artery IVUS Sequences |
Type |
Conference Article |
| Year |
2009 |
Publication |
12th International Conference on Medical Image and Computer Assisted Intervention |
Abbreviated Journal |
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| Volume |
5762 |
Issue |
II |
Pages |
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| Keywords |
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| Abstract |
The measure of lumen volume on radial arteries can be used to evaluate the vessel response to different vasodilators. In this paper, we present a framework for automatic lumen segmentation in longitudinal cut images of radial artery from Intravascular ultrasound sequences. The segmentation is tackled as a classification problem where the contextual information is exploited by means of Conditional Random Fields (CRFs). A multi-class classification framework is proposed, and inference is achieved by combining binary CRFs according to the Error-Correcting-Output-Code technique. The results are validated against manually segmented sequences. Finally, the method is compared with other state-of-the-art classifiers. |
| Address |
London, UK |
| Corporate Author |
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Thesis |
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| Publisher |
Springer Berlin Heidelberg |
Place of Publication |
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Original Title |
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Series Title |
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Abbreviated Series Title |
LNCS |
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Series Issue |
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Edition |
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| ISSN |
0302-9743 |
ISBN |
978-3-642-04270-6 |
Medium |
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Expedition |
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Conference |
MICCAI |
| Notes |
MILAB;HuPBA |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ CPF2009 |
Serial |
1228 |
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| Author |
Pierluigi Casale; Oriol Pujol; Petia Radeva |
| Title |
Classyfing Agitation in Sedated ICU Patients |
Type |
Conference Article |
| Year |
2010 |
Publication |
Medical Image Computing in Catalunya: Graduate Student Workshop |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
19–20 |
| Keywords |
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| Abstract |
Agitation is a serious problem in sedated intensive care unit (ICU) patients. In this work, standard machine learning techniques working on wearable accelerometer data have been used to classifying agitation levels achieving very good classification performances. |
| Address |
Girona |
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Conference |
MICCAT |
| Notes |
MILAB;HUPBA |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ COR2010 |
Serial |
1467 |
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| Author |
Oscar Camara; Estanislao Oubel; Gemma Piella; Simone Balocco; Mathieu De Craene; Alejandro F. Frangi |
| Title |
Multi-sequence Registration of Cine, Tagged and Delay-Enhancement MRI with Shift Correction and Steerable Pyramid-Based Detagging |
Type |
Conference Article |
| Year |
2009 |
Publication |
5th International Conference on Functional Imaging and Modeling of the Heart |
Abbreviated Journal |
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| Volume |
5528 |
Issue |
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Pages |
330–338 |
| Keywords |
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| Abstract |
In this work, we present a registration framework for cardiac cine MRI (cMRI), tagged (tMRI) and delay-enhancement MRI (deMRI), where the two main issues to find an accurate alignment between these images have been taking into account: the presence of tags in tMRI and respiration artifacts in all sequences. A steerable pyramid image decomposition has been used for detagging purposes since it is suitable to extract high-order oriented structures by directional adaptive filtering. Shift correction of cMRI is achieved by firstly maximizing the similarity between the Long Axis and Short Axis cMRI. Subsequently, these shift-corrected images are used as target images in a rigid registration procedure with their corresponding tMRI/deMRI in order to correct their shift. The proposed registration framework has been evaluated by 840 registration tests, considerably improving the alignment of the MR images (mean RMS error of 2.04mm vs. 5.44mm). |
| Address |
Nice, France |
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Thesis |
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| Publisher |
Springer Berlin Heidelberg |
Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
LNCS |
| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0302-9743 |
ISBN |
978-3-642-01931-9 |
Medium |
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Expedition |
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Conference |
FIMH |
| Notes |
MILAB |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ COP2009 |
Serial |
1255 |
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| Author |
Joan Carbo; A. Martinez; Jordi Vitria |
| Title |
Reconocimiento de caras |
Type |
Report |
| Year |
1996 |
Publication |
CVC Technical Report #18 |
Abbreviated Journal |
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Issue |
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Pages |
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CVC (UAB) |
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| Notes |
OR;MV |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ CMV1996 |
Serial |
529 |
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| Author |
Cristina Cañero; E Fernandez-Nofrerias; J. Mauri; Petia Radeva |
| Title |
Modelling the Acquisition Geometry of a C-arm Angiography System for 3D Reconstruction. |
Type |
Miscellaneous |
| Year |
2002 |
Publication |
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MILAB |
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no |
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BCNPCL @ bcnpcl @ CFM2002b |
Serial |
306 |
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| Author |
Karla Lizbeth Caballero; Joel Barajas; Petia Radeva |
| Title |
Using Reconstructed IVUS Images for Coronary Plaque Classification |
Type |
Conference Article |
| Year |
2007 |
Publication |
Engineering in Medicine and Biology Society, 29th Annual International Conference of the IEEE |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
2167–2170 |
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| Address |
Lyon (France) |
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MILAB |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ CBR2007 |
Serial |
925 |
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| Author |
Karla Lizbeth Caballero; Joel Barajas; Oriol Pujol |
| Title |
Reconstructing IVUS Images for an Accurate Tissue Classification |
Type |
Conference Article |
| Year |
2007 |
Publication |
Proceedings of the Second International Conference on Computer Vision Theory and Applications |
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Special Sessions |
Issue |
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Pages |
113–119 |
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Barcelona (Spain) |
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Conference |
VISAPP |
| Notes |
MILAB;HuPBA |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ CBP2007 |
Serial |
926 |
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| Author |
Karla Lizbeth Caballero; Joel Barajas; Oriol Pujol; Neus Salvatella; Petia Radeva |
| Title |
In-Vivo IVUS Tissue Classification: A Comparison Between RF Signal Analysis and Reconstructed Images |
Type |
Book Chapter |
| Year |
2006 |
Publication |
11th Iberoamerican Congress on Pattern Recognition (CIARP´06), LNCS 4225: 137–146 |
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Issue |
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Pages |
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Cancun (Mexico) |
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MILAB;HuPBA |
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no |
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BCNPCL @ bcnpcl @ CBP2006c |
Serial |
724 |
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| Author |
Karla Lizbeth Caballero; Joel Barajas; Oriol Pujol; J. Mauri; Petia Radeva |
| Title |
Using Radio Frequency Reconstructed IVUS Images in Tissue Classification |
Type |
Miscellaneous |
| Year |
2006 |
Publication |
Computers in Cardiology (CiC´06), 33: 533–536 |
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Valencia (Spain) |
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MILAB;HuPBA |
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no |
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BCNPCL @ bcnpcl @ CBP2006a |
Serial |
761 |
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| Author |
Cristina Cañero; Petia Radeva |
| Title |
Vesselness enhancement diffusion |
Type |
Journal Article |
| Year |
2003 |
Publication |
Pattern Recognition Letters |
Abbreviated Journal |
PRL |
| Volume |
24 |
Issue |
16 |
Pages |
3141–3151 |
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| Abstract |
IF: 0.809 |
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MILAB |
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no |
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BCNPCL @ bcnpcl @ CaR2003 |
Serial |
371 |
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| Author |
Cristina Cañero; Petia Radeva |
| Title |
Predictive (un)distortion model for 3D reconstruction purpouses |
Type |
Report |
| Year |
2002 |
Publication |
CVC Technical Report # 61 |
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CVC (UAB) |
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MILAB |
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no |
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BCNPCL @ bcnpcl @ CaR2002 |
Serial |
327 |
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| Author |
X. Binefa; Jordi Vitria; Maria Vanrell |
| Title |
Reconstruccion tridimensional de imagenes Microscopicas. |
Type |
Miscellaneous |
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1992 |
Publication |
V Simposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
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OR;CIC;MV |
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no |
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BCNPCL @ bcnpcl @ BVV1992b |
Serial |
255 |
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| Author |
X. Binefa; Jordi Vitria; Juan J. Villanueva |
| Title |
Three dimensional inspection of integrated circuits: a depth from focus approach. |
Type |
Miscellaneous |
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1992 |
Publication |
SPIE/IS&T Symposium on Electronic Imaging (Conference on Machine Vision in Microelectronics Manufacturing) |
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OR;MV |
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no |
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BCNPCL @ bcnpcl @ BVV1992a |
Serial |
250 |
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