Clinical Research Directory

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

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.

Internet-Based Cognitive Behavioral Therapy for MRI-Related Anxiety

The aim of the study is to investigate whether internet-based cognitive behavioural therapy (iCBT) can help patients who have difficulty undergoing magnetic resonance imaging (MRI). The main question to be answered is \- Can patients undergo MRI with less anxiety using iCBT? The patients will undergo a four-week treatment that includes information about MRI, anxiety management, relaxation and retention. The end goal is to simulate an MRI scan in a mock scanner where participants can report their anxiety. Half of the participants will be randomized to receive the treatment before (intervention group) the simulated MRI scan and half will receive the treatment after the simulated MRI scan (control group). Up to 60 patients will be included plus some pilot patients.

Premedication for Claustrophobic Patients for MRI Scan

Claustrophobia is an irrational fear of restriction and suffocation. It is a specific phobia, according to DSM 5. Claustrophobic patients may fear that restriction of their limbs will hinder their ability to move quickly towards safety. MRI may trigger claustrophobia, because this diagnostic procedure involves a patient laying in a narrow tube. Premedication before MRI scan may occasionally reduce claustrophobia. Prospective observational crossover study of claustrophobic patients who are undergoing MRI scan. At alternate MRI scan sessions, each patient receives rotational premedication using Lorazepam 1mg; or Clonidine tablet 0.2mg; or combined Clonidine 0.2mg + Lorazepam 1mg. Patient will use Claustrophobia Questionnaire, a validated tool, to collect data on the days before and after each MRI scan. CLQ is a patient-administered tool used to assess claustrophobia. In addition, patient will use General Anxiety Disorder Questionnaire, a validated tool, to collect data on the days before and after each MRI scan. GAD-7 is a patient-administered tool that is used to assess anxiety.