Whole body magnetic resonance angiography without injection of contrast agent

This is an automatically translated article.

This article is professionally consulted by Dr. Pham Quoc Thanh - Radiologist - Department of Diagnostic Imaging - Vinmec Hai Phong International General Hospital.

1. What is the MRI of the whole body like?

Magnetic resonance imaging, abbreviated as MRI, is an advanced imaging technique and is used in the diagnosis of many different diseases. This is a technique that does not use X-rays, so it is completely safe for the patient, and also offers high-resolution image quality, so this technique is increasingly popular.
However, because the MRI equipment has a very high value, large investment capital, and requires experienced staff, there are only a few large, reputable medical facilities in our country. new number owns these modern equipment.
Whole-body magnetic resonance angiography plays a great role in the diagnosis and monitoring of dangerous arterial diseases such as stenosis, aneurysm, dissection,...
Today, Doppler ultrasound has limited used to perform a systemic arterial examination. In many medical facilities, systemic computed tomography angiography is still used to evaluate arterial disease and provide accurate results, however, patients will be subject to certain doses of X-rays and cause harm to the patient's health.
Whole body magnetic resonance artery was born to solve all these difficult problems, this is a non-invasive examination method, and does not use X-rays, so it does not affect health patient.

2. Indications and contraindications for systemic magnetic resonance angiography without injection of magnetic contrast agent

2.1 Indications Whole-body magnetic resonance angiography has a relatively wide range of applications. Thanks to that, the arterial system in the patient's body will be examined through each important location such as the brain, thorax, neck, cardiovascular, abdominal cavity (including liver and kidney), two lower and two upper extremities, ...
Indicates systemic magnetic resonance when:
Suspected that the patient is suffering from arterial diseases such as: occlusion, stenosis, dissection, arteritis,... All cases are diagnosed is determined to have the primary tumor and is in need of a detailed assessment of the extent of spread of the organs, as well as an assessment of the extent of distant metastasis of the cancer in the whole body, thereby helping to classify and stage the disease. The cases of patients who are having cancer after being treated with surgery, radiation, and chemotherapy are also required to have a full-body magnetic resonance imaging scan to assess the progression of secondary and primary lesions. Cases were diagnosed with extensive lesions and a comprehensive re-evaluation of the current state of these lesions was warranted. Or the patient has congenital abnormalities such as coarctation of the aorta, ... Detecting atherosclerotic diseases at important locations such as the carotid artery, this is one of the The biggest cause of stroke. Additional support for coronary interventional treatment plans. Identify malformations of cerebral blood vessels. 2.2 Contraindications Contraindicated for patients who are having pacemakers, have metal foreign bodies in the skull, eye sockets,... The patient has claustrophobia.

3. What to do to prepare the patient before taking a non-injectable systemic arterial MRI

Patients do not need to fast. Patients will be specifically explained by the doctors about the procedures in order to best coordinate with the technicians. The doctor re-checks the contraindications for the patient's health condition. The technician instructs the patient to change into the clothes of the MRI room and remove contraindicated items as prescribed. Patients should obtain written orders from clinicians with the clearest diagnoses or complete medical records if necessary.

4. Whole body magnetic resonance angiography without injection of contrast agent

Place the patient on the examination table in the supine position with the arms at the sides of the body. An MRI room technician installs a signal receiver coil system that covers the patient's whole body. Take pictures of pulse sequences before injection according to the procedure given by the doctor. Usually, it takes 30-60 minutes to perform, depending on the pulse locations that need further examination. Before the end of the examination, remove the receiver coil system. Then, the technician will edit and process the images, print the film The doctor will analyze the captured lesions and read the results to the patient, and return the film to the patient according to the appointment. Evaluation of the results: The results show clear anatomical structures in the examination area, and detect lesions if any. Doctors will read the lesions, describe them right on the internal machine and print the results.

5. Complications and treatment

The patient may be afraid, agitated, afraid of the closed room, please comfort and encourage the patient. For patients who are too nervous and afraid, they can be used sedative drugs according to the doctor's prescription.

It can be seen that this is one of the important techniques in diagnostic imaging to accurately assess vascular lesions that can replace computed tomography and digitized background deletion. Whole-body magnetic resonance angiography is an intensive technique and not many medical units offer this service. Therefore, patients should consult and contact reputable medical units before coming to take pictures for specific advice and support.
Vinmec International General Hospital put into use the magnetic resonance imaging machine 3.0 Tesla Silent technology. Magnetic resonance imaging machine 3.0 Tesla with Silent technology of GE Healthcare (USA).
Silent technology is especially beneficial for patients who are children, the elderly, weak health patients and patients undergoing surgery. Limiting noise, creating comfort and reducing stress for customers during the shooting process, helping to capture better quality images and shorten the shooting time. Magnetic resonance imaging technology is the technology applied in the most popular and safest imaging method today because of its accuracy, non-invasiveness, and non-X-ray. and the patient will receive the MRI results after 15-30 minutes, depending on the abnormalities in the body of the person taking the scan. Thanks to the leading medical quality, patients can rest assured when performing examination and treatment at Vinmec.
Master. Doctor. Pham Quoc Thanh has received intensive training and participated in many national and international scientific conferences on diagnostic imaging. The doctor has 13 years of experience in the field of diagnostic imaging and is currently a doctor at the Department of Diagnostic Imaging, Vinmec Hai Phong International General Hospital.

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