Patients who feel anxious about lying inside a tunnel often ask about Open MRI machines. The honest answer for Guwahati in 2026 is that true Open MRI machines (vertical or four-pillar designs) are not yet routinely available. What most centres offer instead is a Wide-Bore MRI, which is much more comfortable than older closed scanners but is technically still a closed-tube design.
What is a Wide-Bore MRI
A Wide-Bore MRI has an opening of 70 centimetres compared to the 60 centimetres on older standard machines. The 10 extra centimetres make a real difference in comfort. The tunnel is also shorter on newer Wide-Bore designs, so your face is closer to the open end. Most patients who could not tolerate older scanners do well in a Wide-Bore machine.
Available Wide-Bore options in Guwahati
Several centres in Guwahati now run Wide-Bore 1.5T or 3T scanners, including in Six Mile, GS Road, Beltola, and Khanapara. Always ask the centre when booking whether their machine is wide-bore. Most modern Siemens MAGNETOM Aera, GE SIGNA Voyager, and Philips Ingenia models are wide-bore.
Image quality differences
Closed-bore machines (including wide-bore) produce sharper, more uniform images than the older Open MRI designs. For most clinical questions, particularly brain, spine, and joint imaging, a Wide-Bore 1.5T or 3T scan is the right choice. Open MRI machines, where they exist in India, are typically lower-strength (0.3T or 0.5T) and image quality is noticeably weaker.
Strategies for claustrophobic patients
If you are anxious about an MRI, plan ahead. Visit the centre a day before and look at the machine. Bring a family member who can stay in the scan room with you (most centres in Guwahati allow this). Use the music option many centres offer. Practise slow breathing in the days before the scan. For severe claustrophobia, talk to your doctor about a mild oral sedative taken 30 minutes before the scan. A few centres also offer prone positioning so your face is not directly inside the tunnel.
When sedation is appropriate
Sedation is reserved for patients who genuinely cannot tolerate the scan. It usually involves an oral or IV medication given by a trained nurse or anaesthesia team. You will need someone to drive you home afterwards.