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Computed tomography involves the construction of three-dimensional and two-dimensional pictures, clearly illustrating the structure and location of the bones of the forearm. During the procedure, a series of images are taken, which the device takes in different planes and at different depths. The forearm consists of two bones – the radius and the ulna. CT allows you to examine in detail not only the condition of the bones, but also partially assess the adjacent joints – the wrist and elbow.
The study is carried out on modern and high-precision equipment. Among the advantages, it is worth noting a completely safe procedure for patients with metal implants and devices in the body. And this procedure allows you to see even the smallest changes.
In what cases is the study assigned?
As a rule, the study of the bones of the forearm is practiced in surgery and traumatology. It is most often prescribed after the passage of a conventional x-ray, if it turned out to be insufficiently informative or in doubt.
CT is used to clarify the complexity and structure of the fracture before surgery or after complex surgical procedures, to monitor the state of the matched bone fragments.
A study with the introduction of a contrast agent allows you to identify both bone and muscle injuries: vascular damage, the presence of an inflammatory or tumor process, impaired blood supply to tissues.
Vascular surgeons and oncologists also often use CT services in their practice, especially with contrast.
In other words, using computed tomography, you can determine: the presence of foreign bodies in the joints; the presence of destructive processes in the bones and joints; osteophytes and osteomyelitis; dystrophic, focal, diffuse changes and anomalies in the development of tissues and joints; arthrosis and arthritis; malignant and benign formations in bones and joints; accumulation of blood and joint fluid.
The study is carried out in regional medical institutions, subject to the availability of special equipment, as well as in specialized medical centers.
Limitations and contraindications
The procedure is practically safe, but there are still some limitations. CT is completely contraindicated in children under 14 years of age and in women who are breastfeeding or pregnant. There are also weight restrictions, only people weighing up to 150 kilograms can undergo the procedure.
It is important to check for:
- the presence of an allergic reaction to iodine;
- functioning of the endocrine system and kidneys.
The procedure is performed on an empty stomach (it is not recommended to eat food 4-6 hours before the examination) – a condition if it is necessary to introduce a contrast agent. If contrast is not used, there are no preparatory procedures.
How is a CT scan of the bones of the forearm performed?
CT diagnostics takes up to 30 minutes in total. The patient is placed in a horizontal position on a special table. The movement of the table occurs horizontally, and the tomograph ring rotates around the study area.
The patient does not experience any discomfort or pain, he hears only clicks and noise.
It is important to remember that during the study period it is necessary to lie completely still. For maximum comfort, the forearm is fixed with special straps and rollers.
If it was necessary to introduce contrast, the procedure is suspended, an intravenous solution is injected and the study is resumed. After CT there is no adaptation period and no restrictions.
Analysis of CT results
After the CT procedure, the conclusion is given to the patient in his hands after a while (approximately about an hour). The radiologist describes the characteristics of a crack (fracture), determines dystrophic changes and bone deformities in the presence of a tumor formation.
When using contrast, it describes the nature of hematomas, vascular changes, and the inflammatory process. The result is written to a disk or flash drive, or sent to the patient’s email address.
CT diagnostics helps to plan actions before surgery. Modern tomographs have a minimum radiation exposure, therefore, it is possible to conduct an examination several times in a row if there is such a need.
All the results obtained must be attributed to the attending physician, who, based on the conclusion of the radiation diagnostician, will prescribe an effective treatment.
Alternative Methods
If there are contraindications to CT, doctors may recommend undergoing the following studies: arthroscopy, biopsy, puncture, ultrasound, X-ray, MRI. Each method has its advantages and disadvantages, indications and contraindications. It is important to remember that for any study, it is recommended to get advice and referrals from the treating specialist. Self-treatment or untimely diagnosis can provoke a number of serious complications!