Real-time measurement of ICD lead motion during stereotactic body radiotherapy of ventricular tachycardia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F21%3A00081141" target="_blank" >RIV/00023001:_____/21:00081141 - isvavai.cz</a>

Alternative codes found

RIV/00843989:_____/21:E0108922 RIV/00216224:14110/21:00121087

Result on the web

<a href="https://journals.viamedica.pl/rpor/article/view/RPOR.a2021.0020/55096" target="_blank" >https://journals.viamedica.pl/rpor/article/view/RPOR.a2021.0020/55096</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5603/RPOR.a2021.0020" target="_blank" >10.5603/RPOR.a2021.0020</a>

Result language

angličtina

Original language name

Real-time measurement of ICD lead motion during stereotactic body radiotherapy of ventricular tachycardia

Original language description

Background: Here we aimed to evaluate the respiratory and cardiac-induced motion of a ICD lead used as surrogate in the heart during stereotactic body radiotherapy (SBRT) of ventricular tachycardia (VT). Data provides insight regarding motion and motion variations during treatment. Materials and methods: We analyzed the log files of surrogate motion during SBRT of ventricular tachycardia performed in 20 patients. Evaluated parameters included the ICD lead motion amplitudes; intrafraction amplitude variability; correlation error between the ICD lead and external markers; and margin expansion in the superior-inferior (SI), latero-lateral (LL), and anterior-posterior (AP) directions to cover 90% or 95% of all amplitudes. Results: In the SI, LL, and AP directions, respectively, the mean motion amplitudes were 5.0 +/- 2.6, 3.4. +/- 1.9, and 3.1 +/- 1.6 mm. The mean intrafraction amplitude variability was 2.6 +/- 0.9, 1.9 +/- 1.3, and 1.6 +/- 0.8 mm in the SI, LL, and AP directions, respectively. The margins required to cover 95% of ICD lead motion amplitudes were 9.5, 6.7, and 5.5 mm in the SI, LL, and AP directions, respectively. The mean correlation error was 2.2 +/- 0.9 mm. Conclusions: Data from online tracking indicated motion irregularities and correlation errors, necessitating an increased CTV-PTV margin of 3 mm. In 35% of cases, the motion variability exceeded 3 mm in one or more directions. We recommend verifying the correlation between CTV and surrogate individually for every patient, especially for targets with posterobasal localization where we observed the highest difference between the lead and CTV motion.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30224 - Radiology, nuclear medicine and medical imaging

Project

—

Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2021

Confidentiality

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

Name of the periodical

Reports of practical oncology and radiotherapy

ISSN

1507-1367

e-ISSN

—

Volume of the periodical

26

Issue of the periodical within the volume

1

Country of publishing house

PL - POLAND

Number of pages

10

Pages from-to

128-137

UT code for WoS article

000641613400016

EID of the result in the Scopus database

2-s2.0-85107557783