Three-dimensional Reconstruction of Renal Vascular Tumor Anatomy to Facilitate Accurate Preoperative Planning of Partial Nephrectomy

Abstract

Objectives: To evaluate the role of three-dimensional (3D) reconstruction tumors and vessels of the kidneys in aiding the preoperative planning of partial nephrectomy. Materials and methods: Patients with renal tumors to be treated with partial nephrectomy were included. Each patient underwent a preoperative computed tomography (CT) survey, and the reconstruction of each patient's 3D arteriography and 3D surface-rendered tumor was performed based on the CT images for preoperative surgical planning. Results: A total of 6 patients, three with tumors of the right kidney and three with tumors of the left kidney, were enrolled in the study. The patients' mean age was 49.33 ± 4.03 years (range: 45e57 years), and their mean tumor size was 4.4 ± 1.84 cm (range: 2.2e6.8 cm). Four underwent robot-assisted laparoscopic partial nephrectomies, one underwent a traditional laparoscopic partial nephrectomy, and one underwent a radical nephrectomy through laparotomy. Their average postoperative hospital stay was 6.7 days (range: 3e10 days). No intraoperative or postoperative complications were noted. The renal function was preserved in all the patients, and none of the patients exhibited evidence of local recurrence during more than 6 years of follow-up. Conclusions: 3D arteriography fused with 3D surface-rendered tumor image navigation facilitates precise preoperative planning.

Finite Element Analysis of Femoral-Acetabular Impingement (FAI) Based on Three-Dimensional Reconstruction

“…e anatomical morphology of the femoral head-neck junction can be clearly observed in the coronal view, and the presence of retroversion of the acetabulum can be identified in the sagittal view. Some of the main diagnostic indexes of FAI can be determined more accurately, such as femoral head-neck offset, α angle, so as to better assess the FAI classification and the degree of damage [21].…”

Case report: Application of three-dimensional technologies for surgical treatment of portosystemic shunt with segmental caudal vena cava aplasia in two dogs

“…They provide more precise views of anatomical structures that are convenient for accurate surgical planning (11-13). The use of 3D technology is also increasing in the field of vascular surgery in human and veterinary medicine (14)(15)(16)(17).…”

A systematic review of the clinical value and applications of three-dimensional virtual reconstructions in renal tumors

“…A recent study [61] showed that the using of 3D reconstructed images combined with 3D arteriography and 3D surface-rendered tumors coild facilitate maximal postoperative renal function preservation after partial nephrectomy.…”