Magnetic Resonance Imaging (MRI)
What is Magnetic Resonance Imaging (MRI)?
Magnetic Resonance Imaging (MRI) is an advanced and widely used medical imaging technique that does not produce ionizing radiation. It uses a strong magnetic field and radiofrequency pulses to temporarily alter the alignment of the magnetic moments of water molecules in the body and elicit response signals. Receivers capture these faint echoes, which are then processed by a computer to reconstruct high‑resolution cross‑sectional images that detail soft tissues and organ structures. Compared with other medical imaging modalities, MRI offers superior soft‑tissue contrast and fine-detail visualization, and is commonly used to examine the brain, neck, spine, muscles and joints, as well as breasts and prostate—areas that require high-contrast imaging.
BNS Medical Imaging use the GE Signa Voyager 1.5T, an advanced whole‑body magnetic resonance (MRI) system that delivers high‑resolution, low‑noise and reliable clinical images. Our Central, Tsim Sha Tsui and Mong Kok centres offer magnetic resonance imaging (MRI) services, all conveniently located near MTR station exits. With a comfortable environment and friendly service, patients can undergo examinations with peace of mind.
GE Signa Voyager 1.5T
Comfort and efficiency together — clearer images, faster scans
Three key highlights:
A more comfortable examination experience
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Designed with a spacious bore to comfortably accommodate patients of various body types.
Faster inspection process
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Advanced technology enhances image clarity, accelerates scan time, and reduces patient wait and examination duration.
More reliable results
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Delivers stable, high-quality imaging with comprehensive and accurate reporting.
What is MRI used for?
In most cases, you'll need a referral from your doctor to schedule an MRI. The following are common indications for the examination:
Brain
Tumors, stroke, epilepsy, cognitive impairment assessment
Spine
Herniated discs, myelopathy, spinal instability or inflammation
Joints
Ligament, cartilage, tendon injuries and preoperative assessment
Abdomen, Pelvis
Liver, Pancreas, Kidneys, Prostate, Uterus, and Ovarian Lesions
Whole body scan
Comprehensive assessment of multiple areas
Preparation and Process
Preparation before the examination:
- Please bring the latest relevant medical reports and old firms for comparison (e.g., X-rays, MRI , CT scans, etc.).
- For patients who are allergic to any MRI contrast materials, please notify our staff. please be advised to bring your prescribed anti allergic medications on the exam day
Before the Examination:
To ensure patient safety and maintain image quality, professional medical staff require patients to take off all accessories (such as earrings, glasses, watches, etc.) and confirm that there are no implanted electronic devices (such as pacemakers).
During the Examination:
The patient will lie on the scanning bed, which will then slowly move into the circular opening of the scanner to conduct the scan.
After the Examination:
- After the examination, the patient can leave once the staff confirms there are no discomforts or allergic reactions.
- If the patient experiences any discomfort during or after the examination, such as difficulty breathing, they should immediately notify the medical staff.
FAQs in MRI
What should be noted before the scan?
Before the scan, please take off all meta accessories, glasses, and removable dentures, and inform the staff if you have a pacemaker, metal implants, or other medical devices.
Is MRI safe?
Magnetic resonance imaging (MRI) is a non‑invasive and radiation‑free procedure that is generally safe. Special evaluation is needed for patients with certain metallic implants or those in early pregnancy. When contrast agents are used, temporary side effects such as nausea or dizziness may occur.
Will the scan be painful? How long does it take?
The scan itself is not painful. Patients need to lie flat and remain still. The duration of the scan depends on the area being examined and the sequences used.
Who processes the scan results?
The report is processed by a radiologist.