PhD Scientific Days 2024

Poster Session N - Cardiovascular Medicine and Research 2.

Reliability of color-coded DVA parameters in peripheral interventions

Előadó neve

Dr. István, Góg

Neptun code

cswyzu

Előadó munkahelye

Semmelweis University, Doctoral College, Cardiovascular Medicine and Research Division

Előadó telefonszáma

+36705620959

Előadó e-mail címe

gogistvan@gmail.com

Az előadás címe

Reliability of color-coded DVA parameters in peripheral interventions

Szerző(k) neve és munkahelye

István Góg, Dr.¹, Péter Sótonyi, Dr.², János Kiss, Dr.³, Krisztián Szigeti, Dr.³, Szabolcs Ostváth, Dr.³

1: Central Hospital of Northern Pest - Military Hospital
2: Semmelweis University, Department of Vascular and Endovascular Surgery
3: Kinepict Health Ltd.

Bemutatás módja

Poszter

Szekció

Poster Session N - Cardiovascular Medicine and Research 2.

Language of the presentation

Hungarian

Preferred session

Cardiovascular Medicine and Research

Összefoglaló szövege

Digital Variance Angiography (DVA) is a novel imaging technology used in the field of interventional radiology. Its use is primarily studied in lower-limb vascular diagnostics, and recently a prospective clinical trial has been performed showing the remarkable dose-lowering capability of this technology. DVA can also be combined with color-coding, which is based on visualising flow related functional data to increase the efficiency of vascular interventions.
Our aim was to compare the reliability of color-coded digital variance angiography and color-coded DSA (Siemens iFlow) in the assessment of lower extremity interventions.
22 CLI patients underwent peripheral vascular intervention in 2020 at the Heart and Vascular Center of Semmelweis University (Budapest, Hungary). Pre- and post-dilatational images were retrospectively processed with Siemens iFlow and Kinepict software, color-coded parametric images were then further examined by reading out time parameters from pre-, and post-stenotic vascular segments. Three parameters, namely the time-to-peak (TTP), peak attenuation (PA) and area-under-curve (AUC) were calculated by each software. Result were compared pairwisely.
Correlation analysis of TTP measurements showed a good match with high (>95%) R2 values (p<0,05). The significant correlation between time-to-peak values was not affected by different imaging protocols or the localization of regions-of-interest. The measured change of TTP caused by vascular intervention was also similar in both groups (R2=0,966, p<0,05).
The comparison of peak attenuation (PA)values resulted in a significant difference in the „4 frames-per-second” protocol group and correlation was not found in neither groups. However, indirect comparison methods resulted in significant correlation between iFlow and DVA data
Regarding AUC data, the reproducibilty varied between different imageing protocol groups.
In conclusion, the color-coded DVA technology is able to reproduce the same time-to-peak data as other commercially available software. The use of PA should also be considered, with proper measurement protocols. The usability of AUC requires further investigation.

This project has been implemented with the support provided by the Ministry of Culture and Innovation of Hungary from the National Research, Development, and Innovation Fund, financed under the „KDP-2020” funding scheme.

University

Semmelweis University

Supervisor

Dr. Sótonyi Péter

Publication of my abstract

I give consent to the publication of my abstract on the website of the congress.

Kind

Szabad

Status

elfogadva

Accepted presentation method

poszter

Előadás fájl jóváhagyás

nem rendelkezett róla

Előadó

6763

Start

16:35

End

16:38