Cancer lesion detection and diagnosis system for early esophageal squamous cell carcinoma of narrow-band endoscopic image

Abstract

The invention belongs to the technical field of medical image processing, and particularly relates to a cancer lesion detection and diagnosis system for early esophageal squamous cell carcinoma of a narrow-band endoscopic image. The system comprises a feature extraction backbone network, a feature pyramid, a region candidate network, a region of interest pooling unit and a cancer focus classification network, and a system for visualization on a narrow-band imaging endoscope image. The backbone network is used for extracting a feature map of an input image; the feature pyramid is used for fusing features of different scales; the region candidate network proposes a possible lesion region; the region of interest pooling unit pools the features to a suspected lesion area; the cancer lesion classification network classifies the cancer lesions; and finally, a narrow-band imaging endoscopic image is visualised, and frame selection marking is carried out on the cancer lesions by using different colors. The image of the narrow-band imaging endoscope is input into the network model, the cancer focus of the early esophageal squamous cell carcinoma existing in the image is detected and diagnosed, the diagnosis efficiency can be effectively improved, and a doctor is assisted in obtaining higher diagnosis precision.

Description

technical field

[0001] The invention belongs to the technical field of medical image processing, and in particular relates to a cancer focus detection and diagnosis system for early esophageal squamous cell carcinoma. Background technique

[0002] Esophageal cancer is a common malignant tumor, and its mortality rate ranks sixth among malignant tumors. 95% of esophageal cancer in China is squamous cell carcinoma

[10] . Studies have shown that the five-year survival rate of advanced esophageal squamous cell carcinoma is only 10%-13%, while the five-year survival rate of early-stage esophageal squamous cell carcinoma can reach more than 90%.

[11] , so early diagnosis and treatment of esophageal squamous cell carcinoma is extremely important, which will directly affect the prognosis of patients. In recent years, with the development of endoscopic technology, endoscopic treatment of early esophageal squamous cell carcinoma has been recognized. The feasibility of endoscopic tr...

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