Dynamic Contrast Enhanced Magnetic Resonance Perfusion Imaging in Congenital Heart Disease and Lung Disease
Heart Disease, Cystic Fibrosis, Asthma
About this trial
This is an interventional treatment trial for Heart Disease focused on measuring pediatrics, Heart Disease, Cystic Fibrosis, Severe Asthma, Magnetic Resonance Imaging
Eligibility Criteria
Inclusion Criteria:
Cardiac Patients:
- Patients > 6 years of age
- Patients with suspected or confirmed congenital or acquired heart disease
- Who undergo a clinically indicated MRI scan, including gadolinium (MRI contrast medium)
- And receive gadolinium (= MRI contrast medium) as part of their clinical investigation
Pulmonary Patients:
- Patients > 6 years of age
- Patients with a chronic and stable lung condition, such as cystic fibrosis, severe asthma.
Exclusion Criteria:
- Children under the age of 6 will be excluded as they are routinely scanned under general anesthesia
- Patients in whom MRI is contraindicated (e.g. pacemaker, ocular metal, claustrophobia, tattoos)
- Patients with a known allergy to gadolinium.
- Patients with a history of allergic disposition or have anaphylactic reactions
- Moderate-to-severe renal impairment (defined as having a GFR/ eGFR < 60 mL/min)
- Have Sickle Cell anemia
- Known pregnancy, or breast feeding
- Patient is uncooperative during a MRI without sedation or anesthesia
Sites / Locations
- The Hospital for Sick Children
Arms of the Study
Arm 1
Arm 2
Experimental
Experimental
Cardiac Patients
Pulmonary Patients
In addition to the routine clinical MRI, we will conduct the DCE MR perfusion imaging research component. For this, we will measure native pre-contrast T1 and then inject a tight bolus of gadolinium (0.1mmol/kg) while acquiring high temporal resolution T1-weighted 3D contrast dynamics information over the whole thorax while the patient is holding his / her breath. Overall, the research component will prolong the clinical study by approximately 5 minutes.
Patients in this group will receive a full cardiac and pulmonary MRI assessment, with the DCE pulmonary perfusion scan added as described above. Overall, the investigation will take approximately 45 minutes