ULTRASONIC DIAGNOSTIC TECHNIQUE FOR INFLAMMATORY CHANGES OF LIVER AND SPLEEN IN TUBERCULOSIS IN CHILDREN Russian patent published in 2014 - IPC A61B8/00 

FIELD: medicine.

SUBSTANCE: according to the first version of the invention, the ultrasonic examination of the liver is performed. The measured short oblique size of the right lobe of the liver is compared to an individual normal value calculated by formula: SOR=5.0+0.5n±0.25 (cm), wherein: SOR is a target short oblique size of the right lobe of the liver; 5.0 (cm) is an average length of the newborn child's kidney; 0.5 is a magnification ratio of the length of the kidney in one year; n is the child's age, years; 0.25 is the correction factor meaning an extreme norm of the short oblique size of the liver. Hepatomegalia is diagnosed if exceeding the normal value. That is followed by assessing hepatic echogenicity and echostructure, and if observing a diffuse increase of the echogenicity and calcinates in the organ parenchyma, the presence of specific liver changes is stated. The second version of the invention implies the ultrasonic examination of spleen. The measured length of the spleen is compared to a normal value calculated by formula: LS=5.0+0.5n±0.25 (cm), wherein: LS is the length of the spleen; 5.0 (cm) is the average length of the newborn child's kidney; 0.5 is a magnification ratio of the length of the kidney in one year; n is the child's age, years; 0.25 is the correction factor meaning the extreme norm of the length of the liver. Splenomegalia is diagnosed if exceeding the normal value. That is followed by measuring the width and thickness of the spleen, and if observing hyperplasia of the upper pole of the spleen, disturbed proportions of the length, width and thickness of the spleen: tracking smooth, polycyclic or convex inner contour of the organ, splenomegalia is also stated. That is followed by assessing splenic echogenicity and echostructure, and if observing calcinates in the splenic parenchyma, an increase of the echogenicity in perivasal portions and/or dilated splenic vein trunk and branches, an increase of lymphatic nodes of the splenic hilum, the presence of specific spleen changes is stated.

EFFECT: technique enables reducing lengths of detecting the tuberculosis process by diagnosing the parenchymatous organs in the children aged 1 to 11 years.

2 cl, 13 dwg, 2 ex