Planning target volume density impact on treatment planning for lung stereotactic body radiation therapy

Autor:	Dražan Jaroš, Milovan Savanović, Jean-Noël Foulquier
Rok vydání:	2021
Předmět:	Lung Neoplasms Lung business.industry Collapsed cone Stereotactic body radiation therapy Radiotherapy Planning Computer-Assisted Planning target volume Irradiated Volume Radiotherapy Dosage Hematology General Medicine Radiosurgery medicine.anatomical_structure Oncology Maximum dose Humans Medicine Radiology Nuclear Medicine and imaging Radiotherapy Intensity-Modulated business Nuclear medicine Radiation treatment planning
Zdroj:	Acta Oncologica. 60:1296-1300
ISSN:	1651-226X 0284-186X
DOI:	10.1080/0284186x.2021.1950926
Popis:	BACKGROUND To evaluate the impact of the planning target volume (PTV) density on treatment planning for lung Stereotactic Body Radiation Therapy (SBRT). MATERIAL AND METHODS The PTV coverage was analyzed in two groups of 40 lung SBRT patients. One group had PTV density 0.5 g/cm3. The treatments were planned in Pinnacle 9.10, using the collapsed cone convolution (CCC) algorithm. The prescribed dose was 60 Gy to the PTV in 4-8 fractions. Respecting constraint for the PTV coverage (D98% > 95%), we compared changes in the isodose line prescription, the number of monitor units (MU), maximum dose (Dmax), irradiated volume covered with 30 Gy (V30Gy), and the optimization planning volume (OPV). RESULTS For the same median values of the PTV coverage (98.3%), the differences are presented with median values between lower and higher density than 0.5 g/cm3. The isodose line prescription was 83 vs. 90% (p
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b80fc27c4dec001eea48d521d017accf https://doi.org/10.1080/0284186x.2021.1950926 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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