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目的:探讨数字化三维重建技术在腹壁浅动脉皮瓣修复口腔颌面部缺损中的应用价值。方法:选取2018年1月至2019年10月就诊于蚌埠医学院第一附属医院口腔颌面外科拟行腹壁浅动脉皮瓣修复的口腔癌患者12例，其中男性8例，女性4例；年龄（57.4±12.6）岁。其中鳞状细胞癌10例，腺样囊性癌1例，黏液表皮样癌1例。术前均行下腹部CT血管造影，并将数据导入AW4.7软件进行后处理，挑选左侧或右侧优势供区，明确皮瓣血供的起源、管径、走行及穿出点位置，利用数字化三维重建技术指导皮瓣术前设计。结果:12例患者中采用腹壁浅动脉皮瓣修复者11例，1例由于未发现腹壁浅动脉，术中转为旋髂浅动脉皮瓣修复。11例采用腹壁浅动脉皮瓣修复的患者，其术前CT血管造影测量的腹壁浅动脉管径［（1.0±0.3） mm］与术中实际测量值［（1.1±0.3） mm］差异均无统计学意义（n P>0.05）。1例术后发生静脉血管危象，其余皮瓣均顺利成活。随访6~12个月，平均10个月，供区受区均一期愈合，未出现明显并发症，腹部瘢痕隐蔽。n 结论:在腹壁浅动脉皮瓣修复口腔颌面部缺损重建术中，术前采用数字化三维重建技术可客观反映腹壁浅动脉的管径及走行位置等信息，有效降低皮瓣手术难度和风险。“,”Objective:To explore the application value of digital three-dimensional(3D) reconstruction technology in the repair of oral and maxillofacial defects with superficial inferior epigastric artery (SIEA) flap.Methods:Twelve cases of oral cancer patients, including 8 males and 4 females; aged (57.4±12.6) years, were selected from the Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Bengbu Medical College from January 2018 to October 2019 and were proposed to repair with SIEA flap. There were 10 cases of squamous cell carcinoma, one case of adenoid cystic carcinoma and 1 case of mucinous epidermal carcinoma. The data were imported into AW4.7 software for post-processing. The left or right dominant donor area was selected to clarify the origin, diameter, alignment, and location of penetration point of the flap blood supply, and digital 3D reconstruction technology was used to guide the flap preoperative design.Results:Eleven cases were repaired by SIEA flap in 12 patients, one case was repaired by superficial iliac artery flap because the source artery was undiscovered, one case had venous vascular crisis after surgery, and the rest of the flap survived. In 11 patients repaired with SIEA flap, there was no significant difference between the preoperative SIEA diameter measured by CTA [(1.0±0.3) mm] and the actual measured value [(1.1±0.3) mm] (n P>0.05). The follow-up was 6 to 12 months, with an average of 10 months, and the donor-receiver areas were all healed in phase Ⅰ. No obvious complications occurred, and the abdominal scar was hidden.n Conclusions:In the SIEA flap repair oral and maxillofacial defect reconstruction surgery, the use of digital 3D reconstruction technology can objectively reflect the diameter and the location of the superficial artery of the abdominal wall before surgery, effectively reduce the difficulty and risk of flap surgery.