2014
DOI: 10.1016/j.radonc.2013.10.013
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Adaptive radiotherapy of lung cancer patients with pleural effusion or atelectasis

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Cited by 84 publications
(95 citation statements)
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References 23 publications
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“…Previous studies have documented interfraction motion of the PT and found average PT displacements that range from 5 mm to 9 mm when measured over the course of radiation therapy. 4,5,8,16 AT, which frequently presents in patients with locally advanced lung cancer, [11][12][13] has been shown to increase PT displacements during lung radiation therapy. 4,5 However, unlike these previously mentioned studies, our study used 4-dimensional fan beam CT to quantify AT changes over time and correlate the changes to PT displacement.…”
Section: Discussionmentioning
confidence: 99%
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“…Previous studies have documented interfraction motion of the PT and found average PT displacements that range from 5 mm to 9 mm when measured over the course of radiation therapy. 4,5,8,16 AT, which frequently presents in patients with locally advanced lung cancer, [11][12][13] has been shown to increase PT displacements during lung radiation therapy. 4,5 However, unlike these previously mentioned studies, our study used 4-dimensional fan beam CT to quantify AT changes over time and correlate the changes to PT displacement.…”
Section: Discussionmentioning
confidence: 99%
“…[6][7][8][9] Pathoanatomic conditions such as atelectasis (AT) can occur in up to 25% of patients with locally advanced lung cancer and may increase tumor position variability. [10][11][12][13][14] There is a paucity of data that explore interfractional tumor position and shape changes that might be associated with AT. Available data suggest that AT can cause changes in tumor position over the course of radiation therapy that is not normally taken into account with standard setup margins.…”
Section: Introductionmentioning
confidence: 99%
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“…[8][9][10] These changes may result in differences between the planned and the actually delivered radiation dose and may require corrective actions. Currently, to detect these dose delivery changes in VMAT, 2-dimensional (2D) integrated or 3-dimensional (3D) integrated EPID dosimetry are used in some centers.…”
Section: Np80mentioning
confidence: 99%
“…Especially in the lung, many geometry changes occur due to pleural effusion, atelectasis, or tumor volume change, influencing the dose delivery and requiring treatment adaptation (patient A). 10 In the bowel area, gas pockets are a frequently occurring source of geometry change. Although this is normally a randomly occurring event and should not influence fractionated treatment drastically, a consistent change in bowel filling can affect the dose to the target volume or OAR (patient B).…”
Section: Site-specific Evaluationmentioning
confidence: 99%