Optimized target delineation procedure for the radiosurgery treatment of ventricular tachycardia: observer-independent accuracy
The result's identifiers
Result code in 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>
Alternative codes found
RIV/68407700:21460/24:00382898 RIV/00216224:14110/24:00137799 RIV/61988987:17110/24:A2503AH0 RIV/61989100:27240/24:10257249 RIV/00843989:_____/24:E0111071
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Optimized target delineation procedure for the radiosurgery treatment of ventricular tachycardia: observer-independent accuracy
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30201 - Cardiac and Cardiovascular systems
Result continuities
Project
<a href="/en/project/NU20-02-00244" target="_blank" >NU20-02-00244: STereotactic Ablative Radiosurgery of recurrent Ventricular Tachycardia in structural heart disease</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Reports of practical oncology and radiotherapy
ISSN
1507-1367
e-ISSN
2083-4640
Volume of the periodical
29
Issue of the periodical within the volume
3
Country of publishing house
PL - POLAND
Number of pages
10
Pages from-to
280-289
UT code for WoS article
001288905000001
EID of the result in the Scopus database
2-s2.0-85200250648