- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05026060
Measurement of Brain Perfusion by a MR Perfusion Imaging Called eASL in Children's Cerebral Arteriopathies. (PEACE)
Measurement of Brain Perfusion by a Magnetic Resonance (MR) Perfusion Imaging Called eASL in Children's Cerebral Arteriopathies.
The MR sequence called MR-ASL is used to measure cerebral perfusion in children. This ASL sequence is used with a unique post-labeling delay (PLD) due to the technical impossibility of setting different post-labeling delays. The use of a single post-labeling, chosen by the pediatric radiology department of the Necker hospital, optimal in children without arteriopathy, may not be suitable for the lengthened arterial transit time of the spins marked in the pathological carotid network of a child with arterial disease.
Recently, ASL sequences with multiple delays (multi-PLD, called eASL) have been developed to overcome this limitation in arterial disease. To date, their use in the pre- and post-treatment evaluation of a child with acute or chronic arterial disease has not been evaluated.
The study hypothesis is that this eASL sequence is more efficient than single-delay ASL in measuring cerebral perfusion. The study will be performed in a population of children with acute or chronic arterial disease.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
For 9 years, the pediatric radiology department of the Necker Enfants Malades hospital has routinely used an MR sequence called MR-ASL, which has made it possible to measure cerebral perfusion in children. The service was a pioneer in using this sequence in children and it made it possible to detect areas of cerebral hypo-perfusion (or even pathological hyper-perfusion) and also to monitor post-surgical or spontaneous revascularizations. But this technique suffers from some limitations. Indeed, this ASL sequence is used with a unique post-labeling delay (PLD) of 1025 ms due to the technical impossibility of setting different post-labeling delays. This PLD corresponds to the arterial transit time of the spins marked to have a satisfactory cerebral perfusion. The use of a single post-labeling, chosen short (1025 ms) by the pediatric radiology department of the Necker hospital, optimal in children without arterial disease, may not be suitable for arterial transit time elongated spins marked in the pathological carotid network of a child with arterial disease.
Recently, ASL sequences with multiple delays (multi-PLD, called eASL) have been developed to overcome this limitation in arterial disease. To date, their use in the pre- and post-treatment evaluation of a child with acute or chronic arterial disease has not been evaluated.
The eASL is a sequence that lasts 4 minutes without injection of contrast product that the pediatric radiology department at Necker Hospital intends to add to the standard clinical sequences, as part of this study. This sequence will have no post-labeling delay a priori and will make it possible to test several post-labeling delays in one go. Thus, no a priori hypothesis on the transit time of the spins will be made and the eASL sequence will be able to show, after its reconstruction, what is the optimal post-labeling delay.
The study will be performed in a population of children with acute or chronic arterial disease. The study hypothesis is that this eASL sequence is more efficient than single-delay ASL in measuring cerebral perfusion.
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Nathalie BODDAERT, MD, PhD
- Phone Number: +33 1 71 39 65 30
- Email: nathalie.boddaert@aphp.fr
Study Contact Backup
- Name: Hélène Morel
- Phone Number: +33 1 44 38 16 53
- Email: helene.morel@aphp.fr
Study Locations
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-
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Paris, France, 75015
- Recruiting
- Hopital Necker-Enfants Malades
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Contact:
- Nathalie BODDAERT, MD, PhD
- Phone Number: +33 1 71 39 65 30
- Email: nathalie.boddaert@aphp.fr
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Contact:
- David GREVENT, MD
- Phone Number: +33 1 71 39 65 31
- Email: david.grevent@aphp.fr
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Minor patients aged 0 to 18 with acute or chronic arterial disease: diagnosis of Moya-moya, diagnosis of sickle cell disease, acute and chronic arterial infarction.
- Necessity of diagnostic MR with standard ASL sequences for the care.
- Holders of parental authority and patients informed and not opposed to their participation in the study.
Exclusion Criteria:
- Usual contraindications to MR.
- Movement during ASL / eASL sequences.
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Patients with arterial disease
Minor patients with acute or chronic arterial disease: diagnosis of Moyamoya, diagnosis of sickle cell disease, acute or chronic arterial infarction.
|
4-minutes eASL sequence without injection of contrast product added to each of the clinical MRs with standard ASL sequences performed for the care of the patient for 3 years.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Qualitative analysis of regional cerebral blood flow (CBF) in ASL and eASL based on a visual analysis of rainbow colored maps
Time Frame: 3 years
|
In each parametric CBF map (ASL and eASL), brain regions appearing visually hypo- or hyperperfused compared to other brain regions will be recorded.
|
3 years
|
Quantitative analysis of regional cerebral blood flow (CBF) in ASL and eASL using Regions of Interest (ROIs)
Time Frame: 3 years
|
In each parametric CBF map (ASL and eASL), the regional CBF will be measured in ml/100g/min over all brain regions by ROIs.
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3 years
|
Quantitative analysis of regional cerebral blood flow (CBF) using statistical parametric map (SPM)
Time Frame: 3 years
|
In each SPM processed CBF parametric map (ASL and eASL), regions with statistically significant hypo- or hyperflow compared to other regions will be recorded.
|
3 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Qualitative analysis of regional cerebral blood flow (CBF) change before and after surgical or spontaneous revascularization in ASL and eASL based on a visual analysis of rainbow colored maps
Time Frame: 3 years
|
For each ASL sequence (ASL and eASL), pre-and post-revascularization parametric CBF maps will be displayed and co-registered.
Brain regions visually showing variation in CBF after reperfusion compared with brain areas clear of acute or chronic arterial disease will be recorded.
|
3 years
|
Quantitative analysis of regional cerebral blood flow (CBF) variation before and after surgical or spontaneous revascularization in ASL and eASL using Regions of Interest (ROI)
Time Frame: 3 years
|
For each ASL sequence (ASL and eASL), pre- and post-revascularization parametric CBF maps will be displayed and co-registered.
In each brain region, the difference in CBF before and after revascularization (in ml/100g/min) will be measured using ROIs.
|
3 years
|
Quantitative analysis of regional cerebral blood flow (CBF) change before and after surgical or spontaneous revascularization in ASL and eASL unsing statistical parametric map (SPM)
Time Frame: 3 years
|
Each ASL sequence (ASL and eASL) will be post-processed in SPM.
Regions with a statistically significant change in CBF before and after revascularization will be recorded.
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3 years
|
Optimal post-labeling delay
Time Frame: 3 years
|
Calculation of optimal post-labeling delay (PLD) according to the type of arterial disease. Regional measures on the arterial transit time map. |
3 years
|
Collaborators and Investigators
Investigators
- Principal Investigator: Nathalie BODDAERT, MD, PhD, Assistance Publique - Hôpitaux de Paris
- Study Director: David GREVENT, MD, Assistance Publique - Hôpitaux de Paris
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- APHP210339
- 2021-A00225-36 (Other Identifier: IDRCB Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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