METHOD FOR DETERMINING AREA OF INTRA-NASAL ANATOMICAL HOLES Russian patent published in 2021 - IPC A61B1/00 A61B1/233 A61B5/08 A61B5/107 G16H30/00 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to otorhinolaryngology. The method includes the study of nasal structures located in the frontal plane, such as the anastomosis of the sphenoid sinus. A rigid endoscope of 0 degrees is inserted into the nasal cavity. After that, a calibration tool is installed at the level of the contours of the anatomical holes, this function is performed by a surgical probe for an attic with a predetermined diameter of the working part. A video image of the installation of the above calibration tool is obtained. The photo fixation of the received image is stored on the computing device. In the saved image, using a computer program for image analysis and processing, using the function for delineating uneven edges, the circumference of the working part of the calibration tool and the contour of the resulting nose hole are alternately selected. The quantitative values of the selected circumference of the working part of the calibration tool and the contour of the nose hole are determined, followed by the determination of the hole area in absolute units, cm², using the program. In addition to the holes at the mouth of the sphenoid sinus, the condition of the nasal valve openings is also examined, while the calibration tool is installed at the level of the landmarks of the internal nasal valve. A mobile phone is used as a computing device. At the same time, the NoseApp program for the mobile phone is used, and the automatic calculation is made on the basis of the Canny edge detector. After that, a database is formed for each patient with further comparison and dynamic observation of the previous processed photos.

EFFECT: method makes it possible to increase the efficiency of assessing the condition of intra-nasal anatomical holes due to the accuracy, ergonomics of determining the area of these holes in the surgical treatment of rhinologic patients.

1 cl, 6 dwg, 2 ex