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Coronary Artery DiseaseNCT00758654

Strain-Encoded Cardiac Magnetic Resonance Imaging for Dobutamine Stress Testing

An observational study of Coronary Artery Disease, run by Heidelberg University at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to compare the diagnostic value of SENC to that provided by conventional wall motion analysis for the detection of inducible ischemia during DS-MRI.High-dose dobutamine stress magnetic resonance imaging (DS-MRI) is safe and feasible for the diagnosis of coronary artery disease (CAD) in… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Coronary Artery Disease
How many people
320 participants
Where
1 siteGermany
Study dates
Jan 2007to Jan 2011
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Consecutive patients with suspected or known coronary artery disease and healthy volunteers serving as a contol group.

Who may be able to join

  • Suspected or known coronary artery disease

Who cannot join

  • General contraindication for a dobutamine stress or for an MRI examination
  • Age < 18 yrs

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • University of Heidelberg, Department of Cardiology

    Heidelberg, 69120

Other trials in Germany

About this study

Official title: Strain-Encoded Cardiac Magnetic Resonance Imaging as an Adjunct for Dobutamine Stress Testing.

The purpose of this study is to compare the diagnostic value of SENC to that provided by conventional wall motion analysis for the detection of inducible ischemia during DS-MRI.High-dose dobutamine stress magnetic resonance imaging (DS-MRI) is safe and feasible for the diagnosis of coronary artery disease (CAD) in humans. However, the assessment of cine scans relies on the visual interpretation of regional wall motion, which is subjective. Recently, Strain-Encoded MRI (SENC) has been proposed for the direct color-coded visualization of myocardial strain.

Read the detailed description

The assessment of inducible regional wall motion abnormalities during high-dose dobutamine stress magnetic resonance imaging (DS-MRI) is an established clinical method with high diagnostic and prognostic value for the evaluation of patients with coronary artery disease (CAD). However, the assessment of cine images relies on the visual interpretation of regional wall motion, which is subjective, and objective approaches for the detection of inducible ischemia with DS-MRI are still lacking.

In our study Strain-Encoded-MRI (SENC) is used for the objective color-coded evaluation of regional myocardial strain during DS-MRI in patients with intermediate to high pretest probability for CAD. We anticipated that this technique would exhibit enhanced sensitivity for the detection of anatomically significant CAD compared to conventional wall motion reading, with invasive coronary angiography used as the standard reference.

Keywords
myocardial strain, Strain-Encoded MRI, dobutamine stress MRI, ischemia, strain rate reserve
Medical subject headings
Coronary Artery Disease, Ischemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00758654
Study groupRoleWhat they receive
1Patients with suspected or known stable coronary artery disease
2Healthy subjects as a control group

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Detection of coronary artery disease (>50% diameter stenosis) by invasive angiography

    Measured: 3 weeks

Secondary outcomes (1)
  1. Long-term mortality and MACE

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Sep 2008 (estimated)
  2. Study startJan 2007
  3. Primary completionJan 2011
  4. Study completionJan 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
320 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00758654
Sponsor's protocol ID
MRI-021
Status last verified
Mar 2012
First submitted
23 Sep 2008
Last updated
30 Mar 2012
Results posted
No
Data monitoring committee
No

Publications

  • Korosoglou G, Gitsioudis G, Voss A, Lehrke S, Riedle N, Buss SJ, Zugck C, Giannitsis E, Osman NF, Katus HA. Strain-encoded cardiac magnetic resonance during high-dose dobutamine stress testing for the estimation of cardiac outcomes: comparison to clinical parameters and conventional wall motion readings. J Am Coll Cardiol. 2011 Sep 6;58(11):1140-9. doi: 10.1016/j.jacc.2011.03.063.

    PubMed 21884952
  • Korosoglou G, Lehrke S, Wochele A, Hoerig B, Lossnitzer D, Steen H, Giannitsis E, Osman NF, Katus HA. Strain-encoded CMR for the detection of inducible ischemia during intermediate stress. JACC Cardiovasc Imaging. 2010 Apr;3(4):361-71. doi: 10.1016/j.jcmg.2009.11.015.

    PubMed 20394897

Questions about this trial

What is this clinical trial studying?

An observational study of Coronary Artery Disease, run by Heidelberg University at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Mar 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Detection of coronary artery disease (>50% diameter stenosis) by invasive angiography (time frame: 3 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00758654, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Mar 2012.

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