- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02235883
High Performance Computing of Personalized Cardio Component Models (HEART)
April 24, 2018 updated by: Lucian Itu, Transilvania University of Brasov
The objective of the HEART Study is to develop a multiscale model of the coronary circulation based on multimodal imaging data (angiography, echocardiography).
The predictive comprehensive multi-scale model, developed during this proof-of-concept study, will be used for analyzing functional aspects of coronary artery disease.
Model validation is performed against invasive measurements
Study Overview
Status
Completed
Conditions
Detailed Description
The main objective of HEART is the development and validation of a patient-specific multiscale computational model of the coronary circulation with high predictive power in healthy and diseased vessels:
- Comprehensive modeling of the anatomical and hemodynamic phenomena in the coronary circulation based on input data acquired from both angiography and echocardiography;
- Assessment of functional parameters and subsequent validation of the models;
- High performance computing architecture for efficiently addressing the multi-scale complexity, which is a critical requirement for translation into clinical decision making.
Patient measurements used as input data for the multiscale models, or for validating the computational results include:
- Angiography: targeted angiographic views include LAO 30, LAO 30/20 cranial, LAO 30/20 caudal, RAO 30 (RCA views) and RAO 25/25 caudal, RAO 0/40 caudal, RAO 10/40 cranial, LAO 50/20 cranial, LAO 50/20 caudal (LCA views)
Echocardiography:
- Standard apical acquisitions (2D harmonic 4-chamber, 2-chamber, 3-chamber)
- Color flow Doppler/spectral Doppler (MR, AI, TR evaluation; CW and PW spectral Doppler)
- Three-dimensional imaging (From apical 4-chamber view one ECG-triggered real time complete full volume acquisition including LV and LA - 1 acquisition at low volume per second (VPS) rate and one at high VPS, real time volumetric color flow Doppler, cover MV and AV).
- Non-invasive pressure measurements: cuff-based measurements at the left and right arm, before echocardiography and angiography
- Invasive pressure measurements: rest - aortic pressure (Pa), distal pressure (Pd), Pd/Pa ratio; hyperemia - aortic pressure (Pa), distal pressure (Pd), FFR (Pd/Pa)
Study Type
Observational
Enrollment (Actual)
94
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Bucharest, Romania
- Spitalul Clinic de Urgenta Bucuresti
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Subjects scheduled to undergo clinically-indicated non-emergent invasive coronary angiography, with suspected coronary artery disease
Description
Inclusion Criteria:
- age >18 years
- providing written informed consent
- scheduled to undergo clinically-indicated non-emergent invasive coronary angiography (ICA)
- likelihood of stenosis in one of the main coronary epicardial vessels (LAD, LCx, RCA)
Exclusion Criteria:
- prior PCI
- prior bypass surgery
- prior valve surgery or replacement
- significant arrhythmia
- very low systolic BP (<90 mmHg)
- abnormally high HR (>120 bpm)
- significant Left Main disease
- STEMI or NSTEMI
- suspected microvascular disease
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Accuracy of coronary hemodynamic indices extracted from the computational model of the coronary circulation as compared to the invasively measured indices (FFR, basal Pd/Pa)
Time Frame: up to 18 months
|
Coronary hemodynamic indices (FFR, basal Pd/Pa) are measured invasively and are computed from the computational model of coronary hemodynamics.
The diagnostic accuracy of the computed hemodynamic indices is evaluated against the measured hemodynamic indices.
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up to 18 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Net reclassification index when using echocardiography data as input parameters for the computational model (in addition to the angiographic data)
Time Frame: up to 18 months
|
Coronary hemodynamic indices (FFR, basal Pd/Pa) are determined from the computational model in two configurations: with and without echocardiography based input data.
We evaluate the net reclassification index of the computed coronary hemodynamic indices when echocardiography based input data is used (as compared to the gold standard represented by the measured coronary hemodynamic indices).
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up to 18 months
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Numerical correlation between computed and measured distal coronary pressure at rest and hyperemia
Time Frame: up to 18 months
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Distal coronary pressure at rest and hyperemia are measured invasively and are extracted from the computational model.
The correlation between measured and computed quantities is evaluated.
|
up to 18 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Principal Investigator: Constantin Suciu, Conf. dr. ing., Siemens Corporate Technology Romania
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Helpful Links
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
August 1, 2014
Primary Completion (Actual)
December 1, 2016
Study Completion (Actual)
January 1, 2017
Study Registration Dates
First Submitted
August 26, 2014
First Submitted That Met QC Criteria
September 6, 2014
First Posted (Estimate)
September 10, 2014
Study Record Updates
Last Update Posted (Actual)
April 25, 2018
Last Update Submitted That Met QC Criteria
April 24, 2018
Last Verified
April 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 130_2012
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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