Real-Time Measurement of ICD Lead Motion During Stereotactic Body Radiotherapy of Ventricular Tachycardia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F20%3A10246644" target="_blank" >RIV/61989100:27240/20:10246644 - isvavai.cz</a>
Result on the web
<a href="https://www.redjournal.org/article/S0360-3016(20)32120-9/fulltext" target="_blank" >https://www.redjournal.org/article/S0360-3016(20)32120-9/fulltext</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5603/RPOR.a2021.0020" target="_blank" >10.5603/RPOR.a2021.0020</a>
Alternative languages
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. Material 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 atient, 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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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
20601 - Medical engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Radiation Oncology Biology Physics
ISSN
0360-3016
e-ISSN
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Volume of the periodical
108
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
18
Pages from-to
"E293"
UT code for WoS article
000582521501121
EID of the result in the Scopus database
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