Application of 3D modeling and printing technology in accurate resection of complicated thoracic tumors

Abstract

Background: To explore the application value of three-dimensional (3D) reconstruction and 3D printing in preoperative evaluation of precise resection of complicated thoracic tumors. Methods: A retrospective analysis of 34 patients with complicated thoracic tumors who were treated by radical surgery from March 2016 to June 2019 was made. According to whether 3D reconstruction and 3D printing was used, the patients were divided into research group and control group. In the control group, preoperative evaluation was performed according to CT image data, and the operation plan was drawn up; in the research group, preoperative simulation and preoperative operation plan design were carried out according to 3D reconstruction and 3D printing technology. The operation time, change of operation approach, intraoperative blood loss, hospitalization time and postoperative complications were compared between the two groups. We also retrospectively reviewed additional 12 cases of unresectable complicated thoracic tumors. The above 34 patients who were treated by radical surgery were set as the resectable group. Three-dimensional reconstruction was performed for all cases. The tumor size, location, smoothness of tumor-vascular contact surface, close contact with adjacent organs were compared between these two groups.Results: The 3D reconstruction and 3D printing model were successfully established. The indexes of operation time, change of incision approach and blood loss in the research group were lower than those in the control group (P<0.05). All the patients were followed up for 6 months, and there was no death, no tumor recurrence and metastasis in the two groups. In the unresectable group, the score of position and smoothness of tumor-vascular contact surface were significantly higher than that in the resectable group.Conclusions: 3D reconstruction and 3D printing can effectively help surgeons carry out accurate surgical treatment, reduce the operation time and bleeding, reduce the risk of surgery, and facilitate the postoperative rehabilitation of patients, which has the value of promotion and application.

3D Modeling of Sculpture Nano-Ceramics under Sparse Image Sequence

“…This method of storing the shadow segment information on the edge of the surrounding polygon does not mean that the shadow area corresponding to the object surface is on the corresponding edge. The shadow of each segment is extended along the observation direction and cut into the surrounding polygon, the cutting contact (on the surrounding polygon) is taken as the boundary, and the polygon is re-segmented (i.e., the adjacent cutting contact is marked as the same segment, which is composed of the straight edge after two segments are cut) [ 22 ]. It can be proved that each shadow segment must be projected within the boundary of a certain segment, and any cutting contact cannot fall into any shadow segment.…”

Three‐dimensional technologies in chest wall resection and reconstruction

“…One paper attempted to quantify the benefit of utilizing 3D models for preoperative planning 12 . Tan et al randomized 34 patients with complicated thoracic tumors to having preoperative operative planning with 3D reconstruction and 3D‐printed translucent resin models versus standard CT images.…”

Case Study of Precise Soft-Tissue Sarcoma Operation Based on Three-Dimensional Modeling Technology

“…The application of printing technology in the multidisciplinary cooperation mode to assist complex tumor surgery demonstrates the overall view of the multidisciplinary cooperation mode and the advantages and safety of personalized operation schemes (5). Moreover, it can play the role of 3D modeling technology in accurate and complete resection of tumors, effectively shortening the operation time and reducing blood loss (1,6), and improving the safety of tumor resection.…”

“…Combined with 3D modeling technology, reconstruction of tumors and surrounding important tissue models can help surgeons clearly and intuitively grasp the anatomical morphology of tumors and the surrounding tissue (3,6,7). In addition, it can lead to accurate and complete resection of the tumor tissue.…”

“…In addition, it can lead to accurate and complete resection of the tumor tissue. There are many cases of 3D modeling technology in the medical field at home and abroad, mainly used in orthopedic material preparation, thoracic surgery, maxillofacial plastic surgery, hepatobiliary surgery, and other disciplines (2,6,(8)(9)(10)(11). However, there are few reports on the application of this technology in the surgical treatment of complex soft tissue malignant tumors (12).…”