0000000000769062

AUTHOR

Gemma Piella

0000-0001-5236-5819

showing 2 related works from this author

Quasi-Conformal Technique for Integrating and Validating Myocardial Tissue Characterization in MRI with Ex-Vivo Human Histological Data

2017

Ventricular tachycardia caused by a circuit of re-entry is one of the most critical arrhythmias. It is usually related with heterogeneous scar regions where slow velocity of conduction tissue is mixed with non-conductive tissue, creating pathways (CC) responsible for the tachycardia. Pre-operative DE-MRI can provide information on myocardial tissue viability and then improve therapy planning. However, the current DE-MRI resolution is not sufficient for identifying small CCs and therefore they have to be identified during the intervention, which requires considerable operator experience. In this work, we studied the relationship of histological data (with 10 \(\mu \)m resolution), with in-vi…

TachycardiaPixelFibrosisComputer sciencemedicineConformal mapHistologyAffine transformationmedicine.symptomVentricular tachycardiamedicine.diseaseEx vivoBiomedical engineering
researchProduct

Atlas construction and image analysis using statistical cardiac models

2010

International audience; This paper presents a brief overview of current trends in the construction of population and multi-modal heart atlases in our group and their application to atlas-based cardiac image analysis. The technical challenges around the construction of these atlases are organized around two main axes: groupwise image registration of anatomical, motion and fiber images and construction of statistical shape models. Application-wise, this paper focuses on the extraction of atlas-based biomarkers for the detection of local shape or motion abnormalities, addressing several cardiac applications where the extracted information is used to study and grade different pathologies. The p…

education.field_of_studyAtlas (topology)Computer sciencebusiness.industryPopulationImage registration02 engineering and technologycomputer.software_genreIndependent component analysisMotion (physics)030218 nuclear medicine & medical imagingImage (mathematics)03 medical and health sciences0302 clinical medicine0202 electrical engineering electronic engineering information engineeringMyocardial motion[INFO.INFO-IM]Computer Science [cs]/Medical Imaging020201 artificial intelligence & image processingComputer visionData miningArtificial intelligenceeducationbusinesscomputer
researchProduct