The open MRI does not systematically solve the problem of claustrophobia. A randomized study cited by East Clinic did not show statistically significant superiority of open MRI compared to short tunnel MRI in patients at risk of claustrophobia: anxious reactions occurred in both groups. This observation, still rarely mentioned in online feedback, deserves to be made before any discussion about the choice of a device.
Wide tunnel of 70 cm or open MRI: an underestimated technical distinction
We observe that most patients contrast open MRI and conventional MRI without considering a third type of device: the wide tunnel MRI with a diameter of 70 cm. Claustrophobic reactions are significantly less frequent in these machines than in standard 60 cm tunnels, according to a summary published by Biology Insights.
This difference of 10 cm disproportionately alters the perception of confinement compared to what the numbers suggest. The volume of air available around the shoulders and face increases sufficiently for the majority of anxious patients to tolerate the examination without sedation.
The open MRI, on the other hand, eliminates the notion of a tunnel by placing two horizontal plates above and below the patient. In Orchies, in the Hauts-de-France region, a new open-field MRI even allows for a side examination, open to 360 degrees. Several claustrophobic patients report a radically different comfort level there. However, we recommend checking what patients think about open MRIs for claustrophobics before assuming that an open device guarantees a calm examination.
Examination position and medical indication: variables overlooked by patient reviews
The anatomical area being examined determines the actual level of confinement, regardless of the device. An MRI of the knee, for example, does not require the head to be introduced into the tunnel, even on a conventional machine. In contrast, a brain or pelvic MRI requires central positioning that negates some of the advantages of the wide tunnel.
On a vertical field open MRI, the constraint shifts: the patient remains visible and can turn their head, but the acquisition time may be longer. The device installed in Orchies announces a reduced examination duration, which is a significant comfort factor for claustrophobics.
We recommend asking three questions to the imaging center before making an appointment:
- Which part of the body will be at the center of the magnet during the examination, and will the head remain outside the tunnel?
- What is the exact diameter of the tunnel or the configuration of the available open device?
- What is the estimated duration of the acquisition for the prescribed indication?
These three elements weigh more heavily on the patient’s experience than the simple label “open MRI”.
Patient feedback: common themes in concrete testimonies
Claustrophobic patients’ reviews converge on one point: the human support from the technician is as important as the machine. Continuous communication via microphone and camera, the ability to interrupt the examination at any time via a bell, and the attitude of the reception staff are frequently cited as determining factors.
Several specialized centers train their technicians in a specific installation protocol for anxious patients: gradual positioning, explanation of each noise, offering music or noise-canceling headphones.
Sedation and anxiolytics: a common but regulated recourse
A significant number of patients report having received an anxiolytic before the examination. This option remains at the discretion of the prescribing physician and assumes being accompanied for the return home. Sedation does not replace psychological preparation: patients who combine light premedication with a prior visit to the center and an exchange with the technician describe the best results.
General anesthesia remains exceptional and reserved for cases of severe claustrophobia where no alternative has worked.
Image quality in open MRI: the clinical compromise to know
Open devices have long operated with a weaker magnetic field than closed tunnels, which could limit image resolution for certain fine indications. Current performance is described as equivalent to that of a conventional MRI by several centers equipped with recent machines.
This equivalence depends on the manufacturer, the strength of the field, and the acquisition protocol. For multiparametric prostate MRI or complex neurological exploration, we advise checking with the radiologist that the available open device meets the requirements of the prescribed sequence.
In practice, the vast majority of common examinations (spine, shoulder, knee, abdomen) are performed without loss of diagnostic quality on the latest generation open MRIs.
Finding an open MRI center: a still limited availability
The number of open field MRIs remains limited in France. The Cité des sciences et de l’industrie publishes a non-exhaustive list of open field and wide tunnel devices, classified by region. A device is notably installed in Orchies, in the Hauts-de-France region.
The rarity of these facilities extends appointment waiting times. Claustrophobic patients who cannot access an open device should target a wide tunnel of 70 cm with an adapted reception protocol, which represents a clinically solid and more geographically accessible alternative.
The choice between open MRI and wide tunnel ultimately depends on the severity of claustrophobia, the medical indication, and local availability. A 360-degree open device transforms the experience for the most intense phobias, but a well-prepared wide tunnel suffices in the majority of cases.
