The book is devoted to the use of Doppler ultrasound in the diagnosis of diseases of the kidneys and upper urinary tract. It developed the idea of ​ ​ an integrated approach to solving diagnostic problems in kidney diseases using ultrasound Doppler imaging of renal vessels and ureterovesicular ejections to assess renal hemodynamics and urodynamics of the upper urinary tract. Algorithms for complex ultrasound examination of patients with kidney diseases are proposed.