VOJTÍŠEK, Radovan, Jan MUŽÍK, Pavel ŠLAMPA, Marie BUDÍKOVÁ, Jaroslav HEJSEK, Petr SMOLÁK, Jiří FERDA and Jindřich FÍNEK. The impact of PET/CT scanning on the size of target volumes, radiation exposure of organs at risk, TCP and NTCP, in the radiotherapy planning of non-small cell lung cancer. Reports of Practical Oncology and Radiotherapy. Wroclaw: Elsevier Urban and Partner sp. z o.o., 2014, vol. 19, No 3, p. 182-190. ISSN 1507-1367. Available from: https://dx.doi.org/10.1016/j.rpor.2013.09.006.
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Basic information
Original name The impact of PET/CT scanning on the size of target volumes, radiation exposure of organs at risk, TCP and NTCP, in the radiotherapy planning of non-small cell lung cancer
Authors VOJTÍŠEK, Radovan (203 Czech Republic), Jan MUŽÍK (203 Czech Republic), Pavel ŠLAMPA (203 Czech Republic, guarantor, belonging to the institution), Marie BUDÍKOVÁ (203 Czech Republic, belonging to the institution), Jaroslav HEJSEK (203 Czech Republic), Petr SMOLÁK (203 Czech Republic), Jiří FERDA (203 Czech Republic) and Jindřich FÍNEK (203 Czech Republic).
Edition Reports of Practical Oncology and Radiotherapy, Wroclaw, Elsevier Urban and Partner sp. z o.o. 2014, 1507-1367.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30200 3.2 Clinical medicine
Country of publisher Poland
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14110/14:00077949
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.1016/j.rpor.2013.09.006
UT WoS 000437602200005
Keywords in English Non-small cell lung cancer; NTCP; PET/CT; Radiotherapy planning; TCP
Tags EL OK, podil
Tags Reviewed
Changed by Changed by: Soňa Böhmová, učo 232884. Changed: 13/1/2015 09:24.
Abstract
Aim: To compare radiotherapy plans made according to CT and PET/CT and to investigate the impact of changes in target volumes on tumour control probability (TCP), normal tissue complication probability (NTCP) and the impact of PET/CT on the staging and treatment strategy. Background: Contemporary studies have proven that PET/CT attains higher sensitivity and specificity in the diagnosis of lung cancer and also leads to higher accuracy than CT alone in the process of target volume delineation in NSCLC. Materials and methods: Between October 2009 and March 2012, 31 patients with locally advanced NSCLC, who had been referred to radical radiotherapy were involved in our study. They all underwent planning PET/CT examination. Then we carried out two separate delineations of target volumes and two radiotherapy plans and we compared the following parameters of those plans: staging, treatment purpose, the size of GTV and PTV and the exposure of organs at risk (OAR). TCP and NTCP were also compared. Results: PET/CT information led to a significant decrease in the sizes of target volumes, which had the impact on the radiation exposure of OARs. The reduction of target volume sizes was not reflected in the significant increase of the TCP value. We found that there is a very strong direct linear relationship between all evaluated dosimetric parameters and NTCP values of all evaluated OARs. Conclusions: Our study found that the use of planning PET/CT in the radiotherapy planning of NSCLC has a crucial impact on the precise determination of target volumes, more precise staging of the disease and thus also on possible changes of treatment strategy.
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