Magnetic resonance imaging of the pituitary gland with injection of magnetic contrast (kinetic study) Dynamic

The article was written by MSc Tong Diu Huong - Department of Diagnostic Imaging - Vinmec Nha Trang International General Hospital.

Pituitary angiography with injection of magnetic contrast (kinetic study) Dynamic is a specialized imaging technique, applied in the diagnosis of pituitary gland diseases with high accuracy, detecting thyroid tumors. very small pituitary size < 3 mm and other abnormalities in the peripituitary area.

1. Magnetic Contrast Pituitary Magnetic Resonance Imaging (Kinematics) What is Dynamic?

The pituitary gland is a very small structure, about the size of a pea with a mass of 0.5g and located in the pituitary of the sphenoid bone at the base of the skull - a complex anatomical structure. Therefore, unlike conventional cranial magnetic resonance imaging techniques, pituitary magnetic resonance imaging requires a separate imaging technique, the magnetic resonance machine must have a high magnetic field, from 1.5 to 3.0 Tesla. And requires a doctor with experience, specializing in cranial pathologies.

2. Purpose/meaning of technique

Magnetic resonance imaging of the pituitary gland with contrast injection helps to find abnormalities of the pituitary gland and surrounding areas such as congenital abnormalities, tumors, infections and other abnormalities. Especially look for very small pituitary tumors such as Microadenoma, which is the most common tumor in the pituitary gland.

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3. Indications and contraindications

3.1 Indications
The pituitary magnetic resonance imaging method is indicated in the following cases:
Suspected cases of pituitary tumors such as hyperprolactinemia, abnormal lactation. Cases of pituitary dwarfism Cases of pituitary tumors such as craniopharyngioma, Rathke's cyst, pituitary ectopic, posterior pituitary ectopic, cases of electrolyte disturbances suspected of posterior pituitary abnormalities, for example example diabetes insipidus Cases of vision loss due to interference lesions suspected of tumor compression Follow-up after treatment 3.2 Contraindications
Patients with pacemakers (absolute contraindications) In people with magnetic metals (relative contraindications) People who are afraid of lying alone Inability to lie still Women under 12 weeks pregnant

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4. How to do it

Patients do not need to fast. When entering the Diagnostic Imaging Department, the patient will be thoroughly explained about the procedure to coordinate well with the doctor, check for contraindications, then change into the clothes of the magnetic resonance imaging room and remove the anti-inflammatory items. point. When taking magnetic resonance imaging of the pituitary gland, the patient will have two-stroke imaging. The first stage is conventional cranial magnetic resonance imaging and focal pituitary imaging, the second is localized imaging of the pituitary gland with dynamic contrast injection (Dynamic). The commonly used contrast agent is Dotarem, which makes it easy to tell the difference between normal pituitary tissue and a tumor, infection, or other abnormality.

5. Pros/Cons

Advantages: Magnetic resonance has advantages over other imaging techniques, it has high image resolution, helps to detect very small lesions, even tumors <3mm in diameter. Cons: Like the general limitations of MR, pituitary MR imaging is not available in patients with pacemakers. Restricted in patients with metal in the body, patients in the first trimester of pregnancy, and claustrophobia.

6. Special points/advantages when performing techniques at Vinmec hospital

Vinmec Nha Trang International General Hospital has invested in a US-made 3.0 Tesla magnetic resonance imaging machine with an imaging room that meets the requirements of the Ministry of Health. This is a new step in healthcare, helping patients to access the most modern technology, save costs and diagnose diseases quickly and accurately.
Patients with pituitary magnetic resonance imaging at Vinmec Nha Trang International General Hospital not only have their results read carefully by their doctors, but also receive dedicated advice on risk factors and pathologies to have a diagnosis. the best care plan for your own health.
Customers can go directly to Vinmec Nha Trang to visit or contact hotline 0258 3900 168 for support.

MORE:
Are pituitary tumors dangerous? Does magnetic resonance imaging (MRI) have any effect? Magnetic resonance imaging (MRI): When is anesthesia needed?

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