What is the procedure for a MRI?

Magnetic resonance imaging (MRI) is a medical imaging technique that uses magnetic fields and radio waves to create detailed images of the inside of the body. The procedure for an MRI typically involves the following steps:

1. Preparation:

- The patient is asked to remove any metal objects, jewelry, or electronic devices that may interfere with the magnetic field.

- The patient may be given a contrast dye injection if needed to enhance the visibility of certain structures or tissues.

2. Positioning:

- The patient is positioned on the MRI table, which moves into the MRI machine.

- The patient's head and body may be secured using straps or cushions to minimize movement.

3. Scanning:

- The MRI machine generates a strong magnetic field and sends radio waves through the body.

- The radio waves cause protons in the body to align with the magnetic field.

- When the radio waves are turned off, the protons return to their original positions and emit signals.

- These signals are detected by the MRI machine and used to create images.

4. Image Processing:

- The MRI machine processes the raw data collected during the scan to create cross-sectional images of the body.

- The images can be viewed on a monitor by the radiographer or doctor.

5. Completion:

- Once the scanning is complete, the patient is moved out of the MRI machine.

- The radiographer or doctor may discuss the results of the MRI with the patient and their doctor.

The duration of an MRI procedure can vary depending on the specific body region being imaged and the complexity of the scan. It can range from a few minutes to over an hour.