Evaluation of the usefulness of the MV3D RECON technique with Bone Removal in CT Brain Angiography

Abstract

Purpose

The reproducibility of blood vessels in MIP 3D reconstruction of DSA images in CT brain angiography may be limited due to various factors. This study aims to analyze the factors causing image quality degradation and to evaluate the usefulness of Modified Vascular 3D Reconstruction (MV3D Reconstruction) using the bone removal technique.

Subjects and Methods

This study analyzed a total of 115 patients (52 men and 53 women) who underwent CT brain angiography at our hospital from January 23, 2023, to December 31, 2023, and experienced reduced image quality due to artifact occurrence. The Somatom Definition Force (Siemens Healthcare, Forchheim, Germany) was used as the examination device, and Syngovia (Siemens Healthcare, Germany) for image post-processing and reconstruction. Patients were divided into two groups based on the artifact type: Group A (motion) and Group B (vein reflux). The vascular reproducibility of DSA 3D reconstruction images and MV3D reconstruction images was qualitatively evaluated using a 5-point Likert scale.

Results

As a result, when MV3D Reconstruction is applied, the reproducibility of group A is 35% and group B is more than 50%. (P<0.01*)

Conclusion

Various factors contribute to the degradation of vascular image quality in CT brain angiography. The MV3D reconstruction method, incorporating the bone removal technique, improves the reproducibility of head and neck vascular images in cases of motion or venous reflux.