Computed tomography
(CT)

Computer tomography of the abdominal cavity and retroperitoneal space

Computer tomography is a highly accurate diagnostic method based on the penetrating properties of X-ray radiation. CT of the abdominal cavity and retroperitoneal space allows visualization of all anatomical structures located in the abdominal area and detection of pathological changes in them.

Unlike a standard X-ray, which produces single images in specific projections, a CT scanner produces a series of images for more detailed diagnostics. During the procedure, the CT scanner's X-ray tube rotates around the patient at an angle of 360°, scanning the target area from different sides.

The sensors located in the working unit convert the radiation energy into electrical impulses, which are processed by the program and visualized as black-and-white images on the monitor screen. Computer tomography of the abdominal cavity is capable of capturing with high accuracy the differences in the density of the object being examined, giving a clear idea of its relief and structure. As a result, the diagnostician gets the opportunity to detect changes that are not visible on standard radiography.

Spiral computed tomography of the pelvic organs

Computer tomography of the pelvic organs is a method of radiation diagnostics that is widely used in the practice of a gynecologist, urologist, oncologist, and surgeon. During the examination, the patient's body is scanned with X-rays in several projections and from different points. The resulting X-ray images are processed by a computer program and converted into digital images. Due to the high information content and detail of the anatomical structures, the procedure allows for an accurate diagnosis and an effective treatment plan.

SCT is considered an improved type of pelvic computed tomography. The X-ray machine continuously scans the object under study along a spiral trajectory, taking a series of layered images - up to 300 images per revolution. Depending on the objectives of the study, the diagnostician can change the thickness of the slices, which allows identifying small pathological foci with a diameter of no more than 1 mm. After processing the data, the software can obtain three-dimensional images of the target area, create multiplanar reconstructions based on X-ray images.

Spiral CT of the pelvic organs is characterized by high quality and detail of images, and the diagnostic information is more complete and reliable.

Computer tomography of the chest organs

Computer tomography of the chest organs is a modern and highly informative analogue of an X-ray examination. CT of the chest organs is performed on a computer tomograph using X-ray radiation and allows obtaining clear high-resolution images with the possibility of 3D modeling on thin sections. The study has a radiation load on the body, therefore it is performed only according to indications and no more often than 1-2 times a year.

Unlike other methods of examining internal organs, dense tissues, bones and joints are well visualized during computed tomography. This is explained by the ability of X-ray radiation to display different tissues on a contrast image based on their density and structure.

Spiral CT scan of the neck

The spiral computed tomography (SCT) technique differs from the standard one in the scanning method. If during a conventional CT the tomograph ring takes step-by-step pictures after each full rotation, then during SCT the scanner rotates continuously. In this case the table slowly moves inside the device, and several dozen pictures of the examined area appear on the monitor.

Spiral CT of the neck organs is a non-invasive, highly accurate diagnostic method that allows us to examine structural and functional changes in soft tissues, vessels and bone formations in this area.

Computer tomography of the head and neck shows the condition of the vessels passing through the brain and cervical region. With its help, the diagnostician can make an accurate diagnosis of injuries, atherosclerosis, thrombosis and autoimmune diseases accompanied by headaches. CT of the neck allows the specialist to assess the condition of soft and bone tissues, identify foci of inflammation, neoplasms, foreign bodies. The study is suitable for studying hollow organs and bones.

Computer tomography of the orbit

The eye orbits are the bony depressions in the facial part of the skull where the eyes are located, as well as the nerve and muscle fibers connected to them. In case of maxillofacial bone injuries, damage and pathologies of the organs of vision, a traumatologist or ophthalmologist may prescribe a CT scan of the eyes to the patient.

CT is a highly informative non-invasive method for diagnosing pathological conditions and diseases of soft and hard bone tissues. X-ray examination is performed on a multispiral computed tomography scanner. The procedure is performed according to the indications and prescription of a doctor no more than once every 6 months. This is due to the radiation load exerted on the body.

An X-ray of the eye orbit is prescribed to clarify the primary diagnosis in case of injuries or suspected pathologies, as well as for secondary diagnostics with an assessment of disease regression. With the help of the study, the diagnostician can clearly determine changes in tissue structure, organ shape and developmental anomalies, as well as find out the cause of their development.

Computer tomography of the jaw

Computer tomography of the maxillofacial region is a highly informative diagnostic method that is widely used in dentistry.

With the help of CT of the jaw, a three-dimensional image of the tooth is obtained. The method allows you to see the anatomical features of the teeth, dental roots and canals, and determine the condition of the jaw bone tissue. The results of dental computed tomography are widely used in pediatric dentistry, therapeutic, surgical, orthopedic, and orthodontic treatment.

The diagnostics are based on the use of X-rays. During scanning, the generator in the tomograph produces rays that pass through the human body. In this case, some of the energy is lost, which is captured by a special detector. The computer then evaluates the difference between the initial radiation energy and its output. The computer system generates and records data on X-ray film. As a result, the diagnostician receives a three-dimensional image.

Computer tomography of the brain

A computed tomography scan of the brain is performed by scanning the target area using X-rays. Modern CT equipment allows for a layer-by-layer examination of the cranial structures and the creation of a three-dimensional image of the brain structures. To study cerebral circulation and examine local areas of the brain, a CT scan of the head is performed using a contrast agent.

Similar to radiography, the computed tomography method is based on the selective absorption of ionizing radiation by tissues. Passing through areas of different density, the energy of the rays is weakened to varying degrees, so soft tissues and bones are visualized differently on X-ray images. The denser the area, the lighter and clearer its contours will be on the black and white image.

The scanner frame, equipped with sensors, rotates around the patient's body, taking a series of images from several angles. The signals from the sensors are processed by a specialized program that superimposes the images on top of each other and forms a three-dimensional model of the brain.

CT of the skull is considered a more informative study than radiography, since after processing it creates more detailed images and a more detailed diagnostic picture.

Computer tomography of the pelvic bones

Pelvic computed tomography is a diagnostic method that visualizes the pelvic bones, joints, and adjacent soft tissues using X-rays. The CT machine allows you to obtain layered images of the area being examined, which increases the information content and accuracy of the study. The technique is widely used in the diagnosis of injuries and diseases that cause damage to the pelvic bones.

Pelvic CT is performed on a computer tomograph that generates X-rays. By rotating the scanning part of the device, it is possible to obtain multiple X-ray images from different angles and record them on sensitive film. Hard and soft tissues located in the pelvic area have the ability to absorb ionizing radiation differently, forming dark and light outlines on the film.

Based on the density and contours of individual sections on the slices, the diagnostician can judge the development of the pathological process, compare the obtained data with the norm. All images are processed by software that analyzes the diagnostic information and transforms it into volumetric models. Before the start of the study, the specialist can set the slice thickness in 1 mm increments, which guarantees high accuracy of CT of the pelvic bones.

For a detailed study of the vascular network and neoplasms located in the pelvic region, computed tomography is supplemented with contrast.