Computed tomography of the kidneys


In clinical practice, it is very important the speed of information and accuracy of the data. On this depends not only the health of the patient, but also life. Modern methods of investigation are diagnosed with early stage of cancer development, the slightest change in the structure of the parenchyma of internal organs, defects of the structure and anomalies of the location of arteries and veins.

Computed tomography of the kidneys is one of the most informative methods of examination, giving the opportunity to obtain the necessary data within a short period of time, which is very important when life-threatening conditions.

CT of kidneys, performed on the spiral CT scanners called spiral. The x-ray source of radiation, usually stationary, spiral CT rotates around the patient’s body at a slight angle. Simultaneously, the table lying sick progressive moves. As a result, less time was covered by a large survey area. The speed of table conveyor, it is possible to increase or decrease; it depends on the desired degree of accuracy and how much time to spend on the CT without risking the patient’s life. The greater the speed of movement of the table, the less the accuracy of the reconstruction of each image of the kidneys.

Helical CT for kidney, if you need to carry out research very quickly, usually in emergency situations. This is a different injury to the kidney and retroperitoneal space, severe pain in the lumbar region, when pain in the supine position increases, and if the patient does not come into contact for various reasons. In these cases the delay is dangerous for patient’s life. Spiral CT shows the pathology in detail, allows for a few minutes to acknowledge the human condition and to start treatment or for emergency surgery.

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Indications for CT

Usually a CT scan of the kidneys is used as a primary method of diagnosis in various diseases. Complaints presented by the patient on a pain of a different nature in the lumbar region, disorders in the urinary system, swelling of varying severity, the symptoms of intoxication (fever, weakness), as well as the availability of data on injury are the main reasons of man on CT scan of the kidneys.

With the help of computer tomography, the doctor diagnoses inflammatory diseases of the kidneys and the presence of purulent foci (abscesses). Sees at the initial stages of malignancy (malignancy) of the renal parenchyma, its degeneration into the tumor, to ascertain the appearance of metastases, to determine their size and number. For kidney stones CT scan will give the opportunity to monitor the dynamics of the lysis of the stones, their passage through the ureters. Various congenital anomalies of the renal vessels (additional vessel, the wrong location), lowered kidney (nephroptosis), polycystic, hydronephrosis, renal Hypo — or aplasia – all these States of CT diagnoses quickly and reliably. In addition, a CT scan is necessary to monitor renal function after surgery in the retroperitoneal space.

Contraindications for computed tomography of the kidneys and possible side effects

CT of kidneys – a study using ionizing radiation, albeit in small doses. If a person regularly undergoes treatment with x-rays or a CT scan uses as a way of dynamic control, then the total he receives sufficient dose. It is necessary to put notify the doctor who will replace KT with another examination method.

If a patient is pregnant or suspects only that, you also need to abandon CT.

The patient the structures in the study area or body piercing in the abdomen or chest can distort the information received.

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Side effects when CT kidney without contrast is not registered. If you are using a contrast agent, allergic reactions on components of the connection.

The CT scan results in various pathology of kidneys

At the initial stage of the cancer CT scan confirms the diagnosis in 97% of cases, visualizing the tumor of a few millimeters. Tumor size of 1 cm in diameter and more are diagnosed with 100% accuracy. CT scan further defines the stage of malignancy, presence of metastases in regional lymph nodes, the anatomy of the ureters, the renal vessels and nerve plexus. Kidney cancer is on the computer monitor is defined as a three-dimensional structure with a different degree of homogeneity (uniformity) and density, with clear boundaries.

Computed tomography is the main method of examination for injuries of the kidney. With its help define the ruptures of the renal parenchyma, the presence of hematoma and urinary streaks, injuries and thrombosis. Accumulation of fluid (blood, urine) in perirenal space appear in the image as blurred educational structure is more dense than the renal tissue.

The presence of inflammation, such as pyelonephritis, diagnosed by expanded renal pelvis, its rough contours, the change in the homogeneity of the structure of renal parenchyma. In the formation of an abscess in the layer image is visible a clear outline of education, consisting of a large number of small cavities filled with fluid. The density of abscess higher than that of unmodified renal tissue.

Make the decision on the need for a CT scan of the kidneys should only doctor. Only a specialist can choose the survey method, comparing all of the risks and informative way.