CT of the orbits is a reliable informative diagnosis of the eye orbits, optic nerve and retina using x-rays. The procedure allows you to “see” almost all the pathological changes that occur in the eyes, as well as the blood supply to all parts of the eyes. In a three-dimensional layered image, the bones of the skull and orbit are visible.
Time: several minutes (up to 15 minutes with contrast) Preliminary preparation: needed when using contrast Contraindications: none Restrictions: allergic reaction to iodine-containing contrast, young children, pregnancy, weight more than 150 kg Preparation time for conclusion: 30 minutes.
The price of CT eyes is 1000 UAH, with a bolus – 2400 UAH.
The purpose of CT diagnostics of orbits
CT of the orbits of the eye allows you to:
- • examine the eyeball for pathological changes;
- • diagnose existing organ pathologies;
- • identify inflammatory processes;
- • identify exo-and enophthalmos;
- • identify vascular disorders;
- • to identify neoplasms and cancer processes with high accuracy.
Indications for CT orbits
CT is prescribed for patient complaints of causeless pain in the eyes, blurred vision, frequent headaches, and also to identify:
- • inflammation in the soft tissues of the eyes;
- • foreign bodies;
- • neoplasms;
- • changes in the lacrimal glands;
- • lesions of the lacrimal glands and eyes;
- • eye injuries, their localization, severity, consequences;
- • neuritis;
- • atrophy of the optic nerves;
- • aneurysms;
- • thrombosis;
- • other congenital and acquired pathologies and anomalies of the orbits.
The procedure allows the early stages to identify the neoplasm, its type, determine its contours, shape, size, density, as well as the spread of metastases in neighboring areas.
How does the CT study of the orbits go?
The patient is placed on the table of the tomograph, fix the head with a special device to ensure complete stable immobility. Only the patient is in the office. Communication with the doctor takes place through a feedback device. The table begins to move, the apparatus starts: the frame with the X-ray and sensors moves in a circle, scanning the eye orbits and the neighboring parts of the skull from all angles. All information received is collected on a computer and the image is displayed on the monitor in the form of layered, horizontal slices. The patient does not feel any discomfort, no unpleasant and painful sensations.
The introduction of a contrast medium (bolus)
In most cases, the orbits are examined without intravenous administration of iodine-containing contrast. A bolus is prescribed if it is necessary to better “see” individual areas of the eyes, the changes that occur in them and the processes that occur in them, to examine the blood supply to the eyeball and optic nerve, as well as for certain diseases. The bolus is administered by an anesthetist. Reaction to contrast: heat, slight tingling (“goosebumps”) in the body. Indications for bolus administration:
- • there is a suspicion of the presence of neoplasms;
- • for a more detailed assessment of the condition of the eyes, optic nerves, retina, etc .;
- • to exclude recurrence after operations and therapies.
The contrast improves the “visibility” of the structures and tissues of the studied area, allows you to accurately determine the location of the disease. The substance is completely eliminated from the body during the day. Patients suffering from allergic reactions should report this before starting the CT procedure with contrast.
Contraindications for the introduction of contrast
The introduction of a bolus is contraindicated in the following categories of patients:
- • allergies to contrast drugs;
- • asthmatics during an exacerbation;
- • women “in position” and nursing mothers.
What are the risks of CT orbits?
The procedure of CT examination does not pose any threat to the health of the patient. Our office is equipped with the most advanced equipment providing a minimum dose of radiation. A man in two years of life receives the same dose of radiation. In order not to harm the unborn child, the woman, before starting the CT scan, is obliged to inform her doctor of her “interesting position”, pregnancy. Special precautions will be taken.
How to prepare for CT orbits
In a conventional CT scan of the orbits, preparation is not needed. Just take off all metal objects, jewelry, glasses, lenses, hairpins, dentures, etc. In the case of a bolus, the patient should refrain from eating for 3-6 hours (the procedure is performed on an empty stomach), as well as from taking medications.
What are the risks of CT orbits?
The procedure of CT examination does not pose any threat to the health of the patient. Our office is equipped with the most advanced equipment providing a minimum dose of radiation. A man in two years of life receives the same dose of radiation. In order not to harm the unborn child, the woman, before starting the CT scan, is obliged to inform her doctor of her “interesting condition”, pregnancy. Special precautions will be taken.
After the procedure, the radiologist studies, analyzes and describes the images. The patient “on hand” receives: digital copies of the pictures, their description by a radiologist with a signature and seal. Our CT-cabinet has a program for automatic image quality control. Often a CT scan of the orbits of the eye, optic nerve, and retina is the only, most informative way to examine the eyes, find the cause of pain, frustration, and poor health. Do not neglect the opportunity to examine your eyes in detail! We are always happy to help you!