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Evaluation of the Effectiveness of a Cardiac Coherence Exercise on MRI Success and Image Quality in Claustrophobic Patients

Evaluation of the Effectiveness of a Cardiac Coherence Exercise on MRI Success and Image Quality in Claustrophobic Patients

Status
Not yet recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07309328
Acronym
COCARI
Enrollment
220
Registered
2025-12-30
Start date
2026-01-31
Completion date
2027-12-31
Last updated
2025-12-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Claustrophobia, MRI

Brief summary

Claustrophobia, an intense fear of confined spaces, can significantly impair the success of MRI examinations by causing patient movement or early termination of the scan, leading to poor image quality. Cardiac coherence, a breathing technique aimed at synchronizing heart rate and reducing anxiety, has shown benefits in stress management. This randomized controlled trial aims to evaluate whether the use of a guided cardiac coherence exercise during MRI can improve exam success rates and image quality in self-reported claustrophobic patients compared to standard care (cartoons for children, music for adults). The primary outcome is the proportion of interpretable MRI scans with good-quality images, assessed blindly by a radiologist. Secondary outcomes include exam duration, use of the emergency call button, patient satisfaction, and perceived comfort. A total of 220 patients aged 7 years and older will be enrolled over 12 months at the Fondation Adolphe de Rothschild Hospital.

Interventions

The exercise consists of slow, rhythmic breathing guided by visual and auditory cues designed to induce a state of physiological calm.

Sponsors

Fondation Ophtalmologique Adolphe de Rothschild
Lead SponsorNETWORK

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
7 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patient aged 7 years or older * Undergoing a 1.5T or 3T MRI scan as part of routine care * Self-reported claustrophobia on the imaging department admission form * Explicit consent to participate in the study, provided by the patient or a legal representative (for minors) * Affiliated with or beneficiary of a social security system

Exclusion criteria

* Patient under legal protection or guardianship * Pregnant or breastfeeding woman * Inability to complete questionnaires and/or perform the cardiac coherence exercise as judged by the investigator

Design outcomes

Primary

MeasureTime frameDescription
Proportion of interpretable MRI exams with good image quality, rated blindly by a radiologistDay 1This outcome measures the proportion of MRI exams considered interpretable and of good quality, based on image assessment by a radiologist blinded to the intervention group. Any exam for which all planned sequences could not be acquired is considered a failure. Each image is scored on a 5-point scale: No artifacts; Minor artifacts (edges only), not interfering with interpretation; Moderate artifacts, not interfering with interpretation; Significant artifacts, partial interpretation possible; Major artifacts, hindering interpretation. An exam is considered of good quality if all images are rated as 1 or 2.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026