METHOD FOR DIAGNOSING PORTO-PORTAL AND PORTO-CENTRAL HEPATIC FIBROSIS Russian patent published in 2006 - IPC A61B5/295 

FIELD: medicine.

SUBSTANCE: method involves determining pulsating arterial blood flow parameters. To do it, measuring electrodes are applied in main liver body mass location zone. Electrode-to-electrode distance is additionally measured and hepatic index is calculated from formula HI=ρ*L²*Ad*ET*HBR/Z²*1000*S, where HI is the hepatic index (l/min/m²), ρ is the constant reflecting volume blood resistance (150 Ohm cm), L is electrode-to-electrode distance (cm), Z is the base impedance (Ohm), Ad is the differential rheogram amplitude (Ohm/s), ET is blood expulsion time (s), HBR is heart beat rate per 1 min, S is the body surface (m²), 1000 is the coefficient for converting to liters. HI value being greater than 0.225 l/min/m², porto-portal and/or porto-central hepatic fibrosis is diagnosed.

EFFECT: wide range of functional applications.

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