The Value of a Convolutional Neural Network-Based Renal Artery Perfusion Model in Predicting Renal Function After Partial Nephrectomy: A Prospective Study

Inclusion Criteria: * people with stage cT1 renal tumors confirmed by preoperative CT or MR * people who are proposed to undergoing partial nephrectomy * localized renal tumors without lymph node and distant metastases as defined by NCCN guidelines * ECOG score of 0 or 1 * Life expectancy greater than 10 years Exclusion Criteria: * people with surgically unresectable lesions * people with Abnormal preoperative renal function, eGFR(estimated by CKD-EPI)\<90ml/min/1.73m2 * people who receive preoperative molecular targeted therapy, immunotherapy, chemotherapy * people with any contraindications to surgery * people who convert to radical nephrectomy during surgery * people who receive molecular targeted therapy, immunotherapy or chemotherapy during the postoperative follow-up period * people with serious systemic disease