Application of three-dimensional printing technology in preoperative planning of double outlet right ventricle

Abstract

Objective To assess the clinic value of three-dimensional(3D) printing models in operation scheme of double outlet right ventricle(DORV). Methods From September 2015 to December 2016, the imaging data of 29 patients (13 males and 16 females) with DORV were acquired using Dual Source CT.And then the cardiac models were generated using 3D printing technology.The cardiac models were used in diagnosing the type of DORV and guiding the surgery scheme.The 3D printed models were compared with two-dimensional imaging in diagnosis and surgical scheme of DORV patients. Results Both the two-dimensional imaging and 3D printed models were effective in the diagnosis and typing of DORV.According to 3D printing models, 28 cases were consistent with the real operations, and 1 case was inconsistent.According to the two-dimensional imaging data, 20 cases of surgical strategies were consistent with the real operations and 9 cases were inconsistent.For patients with DORV with non-committed ventricular septal defect (NC-VSD), 3D printing models were more accurate in the designing of surgical strategies. Conclusions 3D printing models can display 3D anatomical structures and it is helpful in the diagnosis and making preoperative planning for DORV especially for DORV with NC-VSD, which provides a new method for the assessment of DORV. Key words: Congenital heart disease; Double outlet right ventricle; Three-dimensional printing technology; Cardiac model