COMPUTER TOMOGRAPHY

      Computed tomography is a specialized X-ray machine, which can be used to obtain cross-images (cuts) of the area under study.

   In St Luke`s Hospital (Kirovograd) for the examination of internal organs a multi-slice spiral CT Aquilion 16 by Toshiba (Japan) is used, which allows quick diagnostic with minimal radiation exposure.

     CT_for_postThe device consists of a ring-shaped part (gantry) that contains an X-ray tube, radiation detectors and a table-conveyor which moves inside the gantry. The radiator rotates around the patient and generates a very thin fan-shaped X-ray beam.

This beam passes through the human body and is registered by detectors positioned opposite the radiator. Information is read from the detector and transmitted to the computer system, which reconstructs an image of the area under study. Displayed on the screen, this image can be studied and evaluated by an expert.

     Computed tomography (CT) – one of the most effective and most accurate modern methods of diagnosis. Unlike conventional radiography, computed tomography provides a three-dimensional image of the area under study. The slice thickness can be up to 0.5 mm.ex_ct_for_post

Patterns that are not visible on conventional radiographs can be seen with the help of computer tomography. Currently, there are 2 types of CT: step-by-step (traditional) CT and spiral CT, more informative.

     Spiral scan lies in simultaneous performance of two following actions: continuous rotation of the x-ray tube that generates the radiation around the patient’s body, and continuous forward movement of the table with the patient along the longitudinal axis of the gantry. In this case, the movement trajectory of the x-ray tube relatively to the axis of the movement of the table with the patient takes the form of a spiral.

   There is single slice CT, when at the same time only one tomographic layer can be captured, and multislice CT (MSCT), in which from 2 to 640 tomographic slices are reconstructed simultaneously.

ADVANTAGES OF SPIRAL CT

  • High-speed data acquisition (scanning), making possible at simultaneous and short (20 seconds) breath-hold to get an image of an entire anatomic area (lungs, abdomen, and so on). In the case of MSCT the time to collect information in one area is reduced to 8-10 seconds;
  • Multislice spiral CT allows to explore simultaneously multiple anatomical areas (chest and abdominal cavity, pelvis and abdominal cavity, cervical and thoracic spine, etc.);
  • More accurate data by reducing the tomographic slice thickness. The best resolution of multislice CT system (16 slices at a time) is 0.5 mm;
  • Three-dimensional models allow to better visualize the nature and prevalence of pathological process and to carry out a more precise surgical planning. The possibility to carry out so-called virtual endoscopy increases the diagnostic power of the method;
  • Performing CT angiography to obtain a three-dimensional image of the vessels department: the new technology allows to carry out computed coronary angiography and receive a clear image of the coronary arteries, providing visualization of the walls of the vessel and of its lumen;
  • Examination of patients with metal implants (joints, devices of internal and external fixation, etc.);
  • Radial impact with computed tomography is considerably lower than with usual X-ray examination. Compared to other studies using X-rays, CT is safer.

OPENING HOURS OF COMPUTER TOMOGRAPHY ROOM IN

SAINT LUKE`S HOSPITAL:

Monday – Friday 8:00 – 18:00

Saturday – from 8:00 to 12:00

day off – Sunday

Phone: 33-20-35, 15-62, 050-487-54-40.

Velyka Perspektyvna st. 65, Kirovograd.