Back Propagation Neural Network-Based Ultrasound Image for Diagnosis of Cartilage Lesions in Knee Osteoarthritis

Table 3

Staging results of different articular surface cartilage lesions under arthroscopic examination (place).

Staging		Inspection area
		Stage I	Stage II	Stage III	Stage IV	Total
Central groove of pulley	The central sulcus	10	18	11	7	164
	The inside of the slope	12	18	16	17
	The outside of the slope	9	17	18	11
The femoral	The medial condyle	12	21	25	27	155
	The lateral condyle	12	11	24	23