Comment se déroule un examen IRM ?

Introduction and Preparation for MRI

The transcript begins with a discussion about the MRI procedure, emphasizing that it is completely painless and has no side effects. The patient is asked a series of questions to ensure there are no contraindications or potential risks associated with the magnetic fields used in the MRI.

Preparing for the MRI

• The patient is asked about their weight (80 kg) and if they have a pacemaker, cardiac device, or any metal implants.

• Questions are also asked regarding previous surgeries involving metallic materials, such as heart operations or hip prostheses.

• The patient is asked if they work with metals or have any removable dental appliances or hearing aids.

Questionnaire and Preparation Continued

The questionnaire continues to assess any potential risks related to magnetic fields. The patient is instructed to remove all metallic items before entering the examination room.

Completing the Questionnaire

• The patient confirms that they do not have a pacemaker, cardiac device, metal implants, removable dental appliances, or hearing aids.

• After completing the questionnaire, the patient signs a form and proceeds to remove all metallic items except for their underwear. They are provided with a gown and slippers.

Pregnancy Precautions

A precautionary note is given regarding pregnancy. If the patient is pregnant, they should inform the medical team who will determine whether an MRI is necessary.

Pregnancy Precaution

• Pregnant patients are advised to inform the medical team about their pregnancy so that further assessment can be done regarding the necessity of an MRI.

Injection of Contrast Agent (if needed)

Depending on the prescription from the radiologist, an injection of contrast agent may be required during the MRI.

Injection of Contrast Agent

• The patient is informed that an injection of contrast agent may be necessary, depending on the radiologist's prescription.

• The injection is typically administered in a vein in the elbow fold and has no significant side effects.

Positioning for the MRI

The patient is guided to lie down on their back for the MRI scan.

Positioning for the Scan

• The patient is instructed to lie down on their back for the MRI scan.

• A headrest or cushion may be provided to ensure proper positioning and comfort during the procedure.

Verifying Proper Injection and Preparation

The medical staff verifies that everything is in order before proceeding with the scan.

Verifying Proper Injection and Preparation

• The medical staff checks that everything is properly set up and confirms that there are no issues with the injected contrast agent.

• Once everything is verified, they proceed with securing any necessary equipment or devices.

Moving to the Scanning Room

The patient is moved to the scanning room where they will undergo the MRI scan.

Moving to the Scanning Room

• The patient is guided into another room where they will undergo the actual MRI scan.

• They are asked to lie down on their back, and preparations are made for positioning their head correctly within the scanner.

Additional Preparations in Scanning Room

Further preparations are made in the scanning room, including placing ear protection devices on the patient.

Additional Preparations

• Ear protection devices are placed on both ears of the patient before starting the scan.

• These devices help minimize noise exposure during imaging procedures.

Scanning Process

The scanning process begins, and the patient is instructed to remain still during the procedure.

Scanning Process

• The scanning process starts, and the patient is advised to stay still throughout the procedure.

• The medical staff may leave the room temporarily but will monitor the patient from a separate control area.

Different Types of MRI Examinations

There are various types of MRI examinations that require different positioning and focus on specific body parts.

Different Types of MRI Examinations

• Various types of MRI examinations exist, such as cerebral, abdominal, or knee scans.

• Each type requires specific positioning and focuses on different areas of the body.

• For example, an abdominal scan may involve keeping hands on the chest while focusing on imaging internal organs.

Duration of MRI Examinations

The duration of MRI examinations varies depending on the type and purpose of the scan.

Duration of MRI Examinations

• On average, an MRI examination takes approximately 20 minutes.

• However, this duration can vary based on factors such as the type of examination being performed.