Use of the Metal Deletion Technique for Radiotherapy Planning in Patients with Cardiac Implantable Devices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00209805%3A_____%2F18%3A00078119" target="_blank" >RIV/00209805:_____/18:00078119 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/65269705:_____/18:00069638

Výsledek na webu

<a href="https://www.linkos.cz/files/klinicka-onkologie/447/5439.pdf" target="_blank" >https://www.linkos.cz/files/klinicka-onkologie/447/5439.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14735/amko2018434" target="_blank" >10.14735/amko2018434</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Use of the Metal Deletion Technique for Radiotherapy Planning in Patients with Cardiac Implantable Devices

Popis výsledku v původním jazyce

The number of cancer patients with cardiac implantable electronic devices receiving radiotherapy is increasing. Irradiation of such patients can cause malfunctions in pacemakers and implantable cardioverter-defibrillators. In this respect, it is necessary to make a proper irradiation plan for such cancer patients to minimize the dose received by both cardiac devices and pacing leads. However, planning computed tomography (CT) scans have metal artifacts that degrade the image quality and make it difficult to create a qualitative radiation plan. In fact, there is a problem of correct contouring not only of critical organs and planning target volume, but also of cardiac devices and pacing leads during the planning of CT scan operations. Patients and methods: To analyze this issue, we tested the Metal Deletion Technique (MDT) on nine cancer patients with different tumor localizations near cardiac implantable electronic devices and device types who were treated at the Masaryk Memorial Cancer Institute. We conducted a radiotherapy planning in EclipseTM Treatment Planning System, version 11.0 (Varian, Palo Alto, Canada) (employing three-dimensional conformal radiation therapy, intensity-modulated radiation therapy, volumetric-modulated arc therapy and stereotactic body radiation therapy irradiation techniques). We analyzed the influence of MDT on plan parameters and compared CT scans without and with application of the MDT method. Results: The results confirm the need to use the MDT method for reduction the likelihood of malfunctions in devices. The greatest error in determining the dose received by implantable devices and pacing leads is more than 3% of the total dose. It can significantly change the patient&apos;s treatment plan. Conclusion: The data obtained in this experiment are crucial for physicists when selecting radiation techniques and suitable methods for planning the irradiation of patients with implantable electronic devices.

Název v anglickém jazyce

Use of the Metal Deletion Technique for Radiotherapy Planning in Patients with Cardiac Implantable Devices

Popis výsledku anglicky

The number of cancer patients with cardiac implantable electronic devices receiving radiotherapy is increasing. Irradiation of such patients can cause malfunctions in pacemakers and implantable cardioverter-defibrillators. In this respect, it is necessary to make a proper irradiation plan for such cancer patients to minimize the dose received by both cardiac devices and pacing leads. However, planning computed tomography (CT) scans have metal artifacts that degrade the image quality and make it difficult to create a qualitative radiation plan. In fact, there is a problem of correct contouring not only of critical organs and planning target volume, but also of cardiac devices and pacing leads during the planning of CT scan operations. Patients and methods: To analyze this issue, we tested the Metal Deletion Technique (MDT) on nine cancer patients with different tumor localizations near cardiac implantable electronic devices and device types who were treated at the Masaryk Memorial Cancer Institute. We conducted a radiotherapy planning in EclipseTM Treatment Planning System, version 11.0 (Varian, Palo Alto, Canada) (employing three-dimensional conformal radiation therapy, intensity-modulated radiation therapy, volumetric-modulated arc therapy and stereotactic body radiation therapy irradiation techniques). We analyzed the influence of MDT on plan parameters and compared CT scans without and with application of the MDT method. Results: The results confirm the need to use the MDT method for reduction the likelihood of malfunctions in devices. The greatest error in determining the dose received by implantable devices and pacing leads is more than 3% of the total dose. It can significantly change the patient&apos;s treatment plan. Conclusion: The data obtained in this experiment are crucial for physicists when selecting radiation techniques and suitable methods for planning the irradiation of patients with implantable electronic devices.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

30204 - Oncology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Klinická onkologie

ISSN

0862-495X

e-ISSN

—

Svazek periodika

31

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

434-438

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85058735684