METHOD FOR DIAGNOSING PATIENTS WITH RECURRENT LOWER URINARY TRACT INFECTION CAUSED BY CHRONIC SKENITIS Russian patent published in 2025 - IPC A61B5/55 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to urology, and can be used for diagnosis of chronic skenitis disease in patients with recurrent lower urinary tract infection. Magnetic resonance imaging of pelvic organs is performed on a scanner with magnetic induction of 3 T using a combination of spinal and surface 30-channel coils, for 45 minutes, a small pelvis is examined with a contrast enhancement and with a targeted examination of the urethra and periurethral region in the supine position. Sagittal T1 and T2 weighted images (WI) of the pelvis are obtained with Turbo Spin Echo with suppression of a signal from adipose tissue, with a slice thickness of 3 mm and a field of view of 230 mm, with parameters TR/TE 700/18 ms and TR/TE 4300/85 ms respectively. High-resolution T2-WI is obtained with Turbo Spin Echo perpendicular and parallel to the urethra with a section thickness of 2 mm, TR/TE 5700/98 ms, a field of view of 200 mm. Diffusion-weighted images are obtained with suppression of a signal from adipose tissue and plotting the measured diffusion coefficient in an axial projection with a slice thickness of 3 mm, a field of view of 300 mm, TR/TE 5400/88 ms, b 50, 400, 1100. T2-WI SPACE 3D is obtained in a sagittal projection with subsequent three-dimensional reconstruction perpendicular and parallel to the urethra with TR/TE of 1500/89 ms, slice/space 1/1 mm. Field of view covers the base of the bladder to the opening of the urethra craniocaudally and periurethral soft tissues laterally. If observing an increase in the diameter of the urethra, a thickening of the posterior wall, a disturbed differentiation of the wall layers and the presence of small cystic changes or locally dilated ducts in the structure of the submucosal layer of the urethra, skenitis is diagnosed.

EFFECT: method provides differential diagnosis of patients with suspected paraurethral gland inflammation, correct diagnosis and prescription of adequate treatment due to declared MR criteria of chronic skenitis.

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