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Coronary Flow Reserve Evaluation in PET and in MRI Scanner in Heart Transplanted Patients : Comparison With Multi-detectors Scanner (RECOPE)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified April 2014 by University Hospital, Caen.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
University Hospital, Caen Identifier:
First received: October 29, 2010
Last updated: April 8, 2014
Last verified: April 2014

October 29, 2010
April 8, 2014
November 2010
December 2014   (Final data collection date for primary outcome measure)
To compare the coronary flow reserve by a quantitative method (PET ... [ Time Frame: 6 months ]
Same as current
Complete list of historical versions of study NCT01231815 on Archive Site
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Coronary Flow Reserve Evaluation in PET and in MRI Scanner in Heart Transplanted Patients : Comparison With Multi-detectors Scanner
Coronary Flow Reserve Evaluation in PET and in MRI Scanner in Heart Transplanted Patients : Comparison With Multi-detectors Scanner
Heart transplantation is the ultimate therapeutic option in patients with end-stage heart failure. Since advances in the treatment of acute rejection has increased early transplant survival, cardiac allograft vasculopathy (CAV) is the main factor limiting long-term survival. The prevalence of angiographically proven CAV is high, documented in 40-50% of transplant recipients 5 years after transplantation. Therefore, annual coronary angiography remains widely used to monitor transplanted patients, although pathologic studies and intravascular ultrasonography have demonstrated that coronary angiography underestimates the severity of CAV. Perfusion SPECT may underestimate allograft vasculopathy in case of diffuse coronary lesions. In this setting, the assessment of coronary reserve by means of Positron Emission Tomography (PET) and perfusion cardiac magnetic resonance imaging (CMR) have not been investigated.

Aim of the study. The aim of the study is to compare the quantitative (using 15O-H2O PET) and semi-quantitative (using perfusion CMR) assessment of coronary reserve to the presence of coronary artery lesions documented by multidetector CT coronary angiography.

Methods. 30 patients with heart transplantation > 3 yrs will be included in two heart transplantation centers (Caen and Rouen university hospitals)

Expected results.

  • To demonstrate that quantitative analysis of coronary reserve using 15O-H2O PET allows the assessment of cardiac allograft vasculopathy
  • To establish the feasibility of adenosine stress CMR in this population
  • To show a relationship between coronary lesions demonstrated using MDCT and the extent of coronary reserve impairment assessed using cardiac functional imaging (PET and CMR).
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Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Prevention
Heart Disease
  • Radiation: 15O-H2O PET -
    Assessment of coronary reserve using PET
  • Radiation: MRI
    Assessment of coronary reserve using MRI
  • Experimental: PET
    15O-H2O PET
    Intervention: Radiation: 15O-H2O PET -
  • Experimental: MRI
    Intervention: Radiation: MRI
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Unknown status
December 2014
December 2014   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Patient with heart transplantation > 3 years
  • Candidate to a routine coronary angiography
  • Age > 18 years old
  • signed informed consent

Exclusion Criteria:

  • Pregnancy or breast feeding women
  • Recent acute coronary syndrome (<4weeks)
  • High Blood Pressure ((SBP >=180 mmHg or DBP >=110 mmHg)
  • Significant ventricular or supraventricular arrythmia
  • Atrioventricular 2nd or 3rd degree blocks, long QT syndrome
  • Standard contraindications to MRI including pacemaker/defibrillator, metallic clips on brain aneurysms, metal fragment in the eye etc...
  • Congestive heart failure
  • Hemodynamic instability
  • Intolerance or contraindication to adenosine (history of asthma or bronchoplastic disease).
  • Severe and known pulmonary artery hypertension
  • Severe hypotension < 90 mmHg
  • Contraindication to contrast iodinated media (allergy, patients with chronic renal failure with creatinine clearance < 50 ml/min, multiple myeloma, hyperthyroidism,...)
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
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University Hospital, Caen
University Hospital, Caen
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Principal Investigator: Alain Manrique, MD GIP Cyceron - CHU de Caen
University Hospital, Caen
April 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP