Title
Cross-modality assessment and planning for pulmonary trunk treatment using CT and MRI imaging.
Abstract
Congenital heart defect is the primary cause of death in newborns, due to typically complex malformation of the cardiac system. The pulmonary valve and trunk are often affected and require complex clinical management and in most cases surgical or interventional treatment. While minimal invasive methods are emerging, non-invasive imaging-based assessment tools become crucial components in the clinical setting. For advanced evaluation and therapy planning purposes, cardiac Computed Tomography (CT) and cardiac Magnetic Resonance Imaging (cMRI) are important non-invasive investigation techniques with complementary properties. Although, characterized by high temporal resolution, cMRI does not cover the full motion of the pulmonary trunk. The sparse cMRI data acquired in this context include only one 3D scan of the heart in the end-diastolic phase and two 2D planes (long and short axes) over the whole cardiac cycle. In this paper we present a cross-modality framework for the evaluation of the pulmonary trunk, which combines the advantages of both, cardiac CT and cMRI. A patient-specific model is estimated from both modalities using hierarchical learning-based techniques. The pulmonary trunk model is exploited within a novel dynamic regression-based reconstruction to infer the incomplete cMRI temporal information. Extensive experiments performed on 72 cardiac CT and 74 cMRI sequences demonstrated the average speed of 110 seconds and accuracy of 1.4mm for the proposed approach. To the best of our knowledge this is the first dynamic model of the pulmonary trunk and right ventricle outflow track estimated from sparse 4D cMRI data.
Year
Venue
Keywords
2010
MICCAI
incomplete cmri temporal information,cardiac magnetic resonance imaging,cardiac computed tomography,cross-modality assessment,pulmonary trunk,pulmonary trunk treatment,mri imaging,whole cardiac cycle,cardiac system,sparse cmri data,cardiac ct,cmri data,cmri sequence,cause of death,temporal resolution,valve
Field
DocType
Volume
Pulmonary valve,Pulmonary artery,Computer science,Ventricle,Cardiac cycle,Cardiac magnetic resonance imaging,Radiology,Trunk,Pulmonary Trunk,Magnetic resonance imaging
Conference
13
Issue
ISSN
ISBN
Pt 1
0302-9743
3-642-15704-1
Citations 
PageRank 
References 
1
0.36
7
Authors
10
Name
Order
Citations
PageRank
Dime Vitanovski1346.64
Alexey Tsymbal285887.84
Razvan Ioan Ionasec321326.71
Bogdan Georgescu41638138.49
Martin Hubert510.36
Andrew Taylor6142.77
Silvia Schievano7163.67
Shaohua Kevin Zhou8139288.97
Joachim Hornegger91734190.62
Dorin Comaniciu108389601.83