Optimized target delineation procedure for the radiosurgery treatment of ventricular tachycardia: observer-independent accuracy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F24%3A00084978" target="_blank" >RIV/00023001:_____/24:00084978 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21460/24:00382898 RIV/00216224:14110/24:00137799 RIV/61988987:17110/24:A2503AH0 RIV/61989100:27240/24:10257249 RIV/00843989:_____/24:E0111071

Výsledek na webu

<a href="https://journals.viamedica.pl/rpor/article/view/100387" target="_blank" >https://journals.viamedica.pl/rpor/article/view/100387</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5603/rpor.100387" target="_blank" >10.5603/rpor.100387</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimized target delineation procedure for the radiosurgery treatment of ventricular tachycardia: observer-independent accuracy

Popis výsledku v původním jazyce

Background: Part of the current stereotactic arrythmia radioablation (STAR) workflow is transfer of findings from the electroanatomic mapping (EAM) to computed tomography (CT). Here, we analyzed inter- and intraobserver variation in a modified EAM-CT registration using automatic registration algorithms designed to yield higher robustness. Materials and methods: This work is based on data of 10 patients who had previously undergone STAR. Two observers participated in this study: (1) an electrophysiologist technician (cardiology) with substatial experience in EAM-CT merge, and (2) a clinical engineer (radiotherapy) with minimum experience with EAM-CT merge. EAM-CT merge consists of 3 main steps: segmentation of left ventricle from CT (CT LV), registration of the CT LV and EAM, clinical target volume (CTV) delineation from EAM specific points. Mean Hausdorff distance (MHD), Dice Similarity Coefficient (DSC) and absolute difference in Center of Gravity (CoG) were used to assess intra/interobserver variability. Results: Intraobserver variability: The mean DSC and MHD for 3 CT LVs altogether was 0.92 +/- 0.01 and 1.49 +/- 0.23 mm. The mean DSC and MHD for 3 CTVs altogether was 0,82 +/- 0,06 and 0,71 +/- 0,22 mm. Interobserver variability: Segmented CT LVs showed great similarity (mean DSC of 0,91 +/- 0,01, MHD of 1,86 +/- 0,47 mm). The mean DSC comparing CTVs from both observers was 0,81 +/- 0,11 and MHD was 0,87 +/- 0,45 mm. Conclusions: The high interobserver similarity of segmented LVs and delineated CTVs confirmed the robustness of the proposed method. Even an inexperienced user can perform a precise EAM-CT merge following workflow instructions.

Název v anglickém jazyce

Optimized target delineation procedure for the radiosurgery treatment of ventricular tachycardia: observer-independent accuracy

Popis výsledku anglicky

Background: Part of the current stereotactic arrythmia radioablation (STAR) workflow is transfer of findings from the electroanatomic mapping (EAM) to computed tomography (CT). Here, we analyzed inter- and intraobserver variation in a modified EAM-CT registration using automatic registration algorithms designed to yield higher robustness. Materials and methods: This work is based on data of 10 patients who had previously undergone STAR. Two observers participated in this study: (1) an electrophysiologist technician (cardiology) with substatial experience in EAM-CT merge, and (2) a clinical engineer (radiotherapy) with minimum experience with EAM-CT merge. EAM-CT merge consists of 3 main steps: segmentation of left ventricle from CT (CT LV), registration of the CT LV and EAM, clinical target volume (CTV) delineation from EAM specific points. Mean Hausdorff distance (MHD), Dice Similarity Coefficient (DSC) and absolute difference in Center of Gravity (CoG) were used to assess intra/interobserver variability. Results: Intraobserver variability: The mean DSC and MHD for 3 CT LVs altogether was 0.92 +/- 0.01 and 1.49 +/- 0.23 mm. The mean DSC and MHD for 3 CTVs altogether was 0,82 +/- 0,06 and 0,71 +/- 0,22 mm. Interobserver variability: Segmented CT LVs showed great similarity (mean DSC of 0,91 +/- 0,01, MHD of 1,86 +/- 0,47 mm). The mean DSC comparing CTVs from both observers was 0,81 +/- 0,11 and MHD was 0,87 +/- 0,45 mm. Conclusions: The high interobserver similarity of segmented LVs and delineated CTVs confirmed the robustness of the proposed method. Even an inexperienced user can perform a precise EAM-CT merge following workflow instructions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30201 - Cardiac and Cardiovascular systems

Projekt

<a href="/cs/project/NU20-02-00244" target="_blank" >NU20-02-00244: Stereotaktická ablativní radiochirurgie rekurentní komorové tachykardie u strukturního onemocnění srdce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Reports of practical oncology and radiotherapy

ISSN

1507-1367

e-ISSN

2083-4640

Svazek periodika

29

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

10

Strana od-do

280-289

Kód UT WoS článku

001288905000001

EID výsledku v databázi Scopus

2-s2.0-85200250648