Wenqing Han1, Xianxian Yang1, Shuihua Wu2, Shuangshi Fan2, Xiaojun Chen1, Zin Mar Aung1, Tianjia Liu3, Yan Zhang1, Shuo Gu4, Gang Chai5. 1. Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China. 2. Department of Neurosurgery, Hunan Children's Hospital, Changsha, 410007, Hunan, China. 3. Department of Neurosurgery, The Maternal and Child Health Hospital of Hainan Province, Haikou, 570206, China. 4. Department of Neurosurgery, The Maternal and Child Health Hospital of Hainan Province, Haikou, 570206, China. Electronic address: gushuo007@163.com. 5. Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200011, China; The College of Medical Instrument, Shanghai University of Medicine & Health Sciences, No. 257, Zhouzhu Highway, Pudong District, Shanghai, China; Department of Plastic and Reconstructive Surgery, The Maternal and Child Health Care Hospital of Hainan Province, Haikou, 570206, China. Electronic address: 13918218178@163.com.
Abstract
PURPOSE: Augmented reality (AR) is considered to be a valuable tool in craniofacial surgery for preoperative design, intraoperative navigation, and postoperative assessment. Corrective surgery is necessary synostotic plagiocephaly for functional and aesthetic outcomes. Open calvarial reconstruction is a difficult classic surgical procedure with a high accuracy requirement. The purpose of this study was to introduce an AR system application in synostotic plagiocephaly surgery. MATERIALS AND METHODS: Seven plagiocephaly patients (ages 6 months-24 months, average 16.7 months) were enrolled. Preoperative design was accomplished based on three-dimensional computed tomography (CT) data for patients with synostotic plagiocephaly. We completed the registration with the predefined markers through an image registration process preoperatively. Then, we overlaid the registration results into the surgical field to assist surgeons intraoperatively. CT scans were performed postoperatively. Intracranial volume was measured to judge the surgical outcomes. We performed a quantitative craniometric analysis between the planning of the reconstruction and post-operative results, and the main evaluation indicator was the intracranial volume asymmetry. RESULTS: We successfully applied the AR system in patients undergoing synostotic plagiocephaly, providing real-time navigational images of position and orientation information during open calvarial reconstruction surgery in 7 plagiocephaly patients within a span of 5 years. Good appearances were observed after the surgery. Cranial volume asymmetry was decreased from 27.87% to 16.57%, achieving precise intra-operative goals. No significant differences were found between planning and post-operative results. CONCLUSIONS: The AR system can be applied to plagiocephaly procedures guiding to obtain reliable and accurate results via a precise osteotomy.
PURPOSE: Augmented reality (AR) is considered to be a valuable tool in craniofacial surgery for preoperative design, intraoperative navigation, and postoperative assessment. Corrective surgery is necessary synostotic plagiocephaly for functional and aesthetic outcomes. Open calvarial reconstruction is a difficult classic surgical procedure with a high accuracy requirement. The purpose of this study was to introduce an AR system application in synostotic plagiocephaly surgery. MATERIALS AND METHODS: Seven plagiocephalypatients (ages 6 months-24 months, average 16.7 months) were enrolled. Preoperative design was accomplished based on three-dimensional computed tomography (CT) data for patients with synostotic plagiocephaly. We completed the registration with the predefined markers through an image registration process preoperatively. Then, we overlaid the registration results into the surgical field to assist surgeons intraoperatively. CT scans were performed postoperatively. Intracranial volume was measured to judge the surgical outcomes. We performed a quantitative craniometric analysis between the planning of the reconstruction and post-operative results, and the main evaluation indicator was the intracranial volume asymmetry. RESULTS: We successfully applied the AR system in patients undergoing synostotic plagiocephaly, providing real-time navigational images of position and orientation information during open calvarial reconstruction surgery in 7 plagiocephalypatients within a span of 5 years. Good appearances were observed after the surgery. Cranial volume asymmetry was decreased from 27.87% to 16.57%, achieving precise intra-operative goals. No significant differences were found between planning and post-operative results. CONCLUSIONS: The AR system can be applied to plagiocephaly procedures guiding to obtain reliable and accurate results via a precise osteotomy.
Authors: Abdullah Thabit; Mohamed Benmahdjoub; Marie-Lise C van Veelen; Wiro J Niessen; Eppo B Wolvius; Theo van Walsum Journal: Int J Comput Assist Radiol Surg Date: 2022-05-04 Impact factor: 3.421