Jugular vein ball socket and sinus sigmoideus groove positioning method and intelligent temporal bone image processing system

Abstract

The invention provides an automatic positioning method for a jugular vein ball socket and a sinus sigmoideus groove in a temporal bone image and an intelligent temporal bone image processing system, which are used for computer-assisted pulsatile tinnitus diagnosis. According to the method, a thick-to-thin frame is adopted to carry out step-by-step accurate positioning, and the shape information and relative position information of the jugular vein ball socket and the sinus sigmoideus groove are fully utilized, so that the detection and positioning algorithm is more efficient and lighter. By combining and fusing multi-view information, the positioning effect is optimized, and the detection accuracy of a multi-layer continuous change target is improved. Compared with a deep learning method, the automatic positioning method provided by the invention does not depend on a large amount of labeled data any more, and is easier to implement and popularize.

Description

technical field [0001] The invention relates to the field of medical image processing, in particular to a jugular ball socket and sigmoid groove positioning method and an intelligent temporal bone image processing system. Background technique [0002] Tinnitus is manifested as the abnormal perception of sound by the human body without external stimuli. It is a common and frequently-occurring disease in otology. Among them, pulsatile tinnitus (Pulsatile Tinnitus, PT) accounts for about 4%-10% of tinnitus patients. In the past ten years, with economic development and people's emphasis on health, the demand for diagnosis and treatment of patients has surged. With the popularization of temporal bone imaging technology, the imaging method for pulsatile tinnitus has become an important technical means. [0003] Temporal bone CT is the main method for diagnosing osseous lesions in pulsatile tinnitus. Temporal bone CT can display multiple fine structures such as the middle ear and...

AI Technical Summary

Problems solved by technology

When the perivascular bone wall associated with pulsatile tinnitus is missing, the lesion site is changeable, the imaging manifestations are different, and the surrounding structures are adjacent to each other, which becomes a difficult point in imaging diagnosis, which brings challenges to its detection and localization

[0005]The conventional target detection method uses a sliding window to detect in an entire image during the positioning process, and the time complexity is high; the anatomical structure changes with the continuous layer The sequence will change in shape, and it is difficult for conventional object detection methods to classify the changing objects into the same category, so the error rate is usually high when detecting continuously changing anatomical structures; conventional object detection methods usually require a large amount of labeled data for Model training, which consumes a lot of manpower and time

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