Perceptions of Porta Celiac Vascular Model

Summary

Background: Primary aspect of hepatic navigation surgery is the identification of source vascular details to preserve healthy liver which has a vascularity anatomy quite challenging for the young surgeons. The purpose was to determine whether three-dimensional (3D) vascular pattern models of preoperative computed tomography images will assist resident-level trainees for hepatic surgery.

Methods: This study was based on the perception of residents who were presented with 5 different hepatic source vascular pattern and required to compare their perception level of CT, and 1:1 models in terms of importance of variability, differential of patterns and preoperative planning.

Results: All subspecialties agree that models provided better understanding of vascular source and improved preplanning. Five stations provided qualitative assessment with results showing the usefulness of porta-celiac models when used as anatomical tools in preplanning (p=0.04), simulation of interventional procedures (p=0.02), surgical education (p=0.01). None of the cases a scored less than 8.5. Responses related to understanding variations were significantly higher in the perception of the 3D model in all cases, furthermore 3D models were more useful for seniors in more complex cases 3 \& 5. Some open-ended answers: "The 3D model can completely change the operation plan" One the major factors for anatomical resection of liver transplantation is the positional relationship between the hepatic arteries and the portal veins. Conclusions: The plastic-like material presenting the hepatic vascularity enables the visualization of the origin, pattern, shape, and angle of the branches with appropriate spatial perception thus making the well-structured.

Conditions

• Educational Problems

Interventions

OTHER

Survey

A multi-item survey was prepared to assess fellow's perception of residency training. The survey was utilized by our group, understanding of patient vascular anatomy, awareness of the changes based on variations, independent decision-making, differential diagnosis, plan on key surgical steps, and preparation for unexpected bleeding. The answers to the questions asked for each case were analyzed to include senior (3 years and over) - junior (1-2 years) residents.Assistants spend 45 minutes in the survey. Data are entered into SPSS 24.0 for statistical analysis. Wilcoxon Signed Ranks Test was used to determine any significant differences in the measurements between the original CT images, 3D rendered images, the 3D model and CT images of the 3D model. Statistical significance was defined as a p value of less than 0.05. Junior assistants stated that they perceived 2D image statistically better than 3D models compared to the senior assistants (Kruskal-Wallis Test).

Sponsors & Collaborators

• Ege University

  lead OTHER

Principal Investigators

• Mehmet Ozer, Prof. Dr · Faculty of Medicine, Ege University

• Yelda Pinar · Faculty of Medicine, Ege University

Study Design

Purpose

BASIC_SCIENCE

Masking

NONE

Model

SEQUENTIAL

Eligibility

Min Age

25 Years

Max Age

35 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2018-05-05

Primary Completion

2018-11-05

Completion

2019-08-05

Countries

• Turkey (Türkiye)

Study Locations