Influence of the type of imaging on the delineation process during the treatment planning
W Jackowiak, B Bąk, A Kowalik… - Reports of Practical …, 2015 - journals.viamedica.pl
Aim The aim of this study was to compare the intra-and interobserver contouring variability
for structures with density of organ at risk in two types of tomography: kilovoltage computed …
for structures with density of organ at risk in two types of tomography: kilovoltage computed …
[HTML][HTML] Inter-observer variability of organ contouring for preclinical studies with cone beam Computed Tomography imaging
G Lappas, N Staut, NG Lieuwes, R Biemans… - Physics and Imaging in …, 2022 - Elsevier
Background and purpose In preclinical radiation studies, there is great interest in quantifying
the radiation response of healthy tissues. Manual contouring has significant impact on the …
the radiation response of healthy tissues. Manual contouring has significant impact on the …
Daily cone-beam computed tomography used to determine tumour shrinkage and localisation in lung cancer patients
MM Knap, L Hoffmann, M Nordsmark… - Acta …, 2010 - Taylor & Francis
Abstract Purpose/Objective. Daily Cone-beam computed tomography (CBCT) in room
imaging is used to determine tumour shrinkage during a full radiotherapy (RT) course. In …
imaging is used to determine tumour shrinkage during a full radiotherapy (RT) course. In …
Artifacts in conventional computed tomography (CT) and free breathing four-dimensional CT induce uncertainty in gross tumor volume determination
GF Persson, DE Nygaard, PM af Rosenschöld… - International Journal of …, 2011 - Elsevier
PURPOSE: Artifacts impacting the imaged tumor volume can be seen in conventional three-
dimensional CT (3DCT) scans for planning of lung cancer radiotherapy but can be reduced …
dimensional CT (3DCT) scans for planning of lung cancer radiotherapy but can be reduced …
Prostate cancer: contouring target and organs at risk by kilovoltage and megavoltage CT and MRI in patients with and without hip prostheses
L Falcinelli, I Palumbo, V Radicchia… - The British Journal of …, 2015 - academic.oup.com
Objective: In radiotherapy treatment, planning target volume and organs at risk are
contoured on kilovoltage CT (kVCT) images. Unlike MR images, kVCT does not provide …
contoured on kilovoltage CT (kVCT) images. Unlike MR images, kVCT does not provide …
A 3D analysis and reduction of observer variation in delineation of lung cancer for radiotherapy
R Steenbakkers, J Duppen, I Fitton… - International Journal of …, 2004 - redjournal.org
Results Using CT only, in four patients the common volume was zero (ie no single point in
these patients CT was included into the GTV by all observers). The mean ratio between …
these patients CT was included into the GTV by all observers). The mean ratio between …
Interactive contour delineation of organs at risk in radiotherapy: clinical evaluation on NSCLC patients
Purpose: Accurate delineation of organs at risk (OARs) on computed tomography (CT)
image is required for radiation treatment planning (RTP). Manual delineation of OARs being …
image is required for radiation treatment planning (RTP). Manual delineation of OARs being …
Benefit of using motion compensated reconstructions for reducing inter-observer and intra-observer contouring variation for organs at risk in lung cancer patients
A McWilliam, L Lee, M Harris, H Sheikh… - Radiotherapy and …, 2018 - Elsevier
Background and purpose In lung cancer patients, accuracy in contouring is hampered by
image artefacts introduced by respiratory motion. With the widespread introduction of 4DCT …
image artefacts introduced by respiratory motion. With the widespread introduction of 4DCT …
Physical considerations on discrepancies in target volume delineation
R Moeckli, WJ Sozzi, RO Mirimanoff, M Ozsahin… - … für Medizinische Physik, 2009 - Elsevier
BACKGROUND AND PURPOSE: To compare the delineations and interpretations of target
volumes by physicians in different radio-oncology centers. MATERIALS AND METHODS …
volumes by physicians in different radio-oncology centers. MATERIALS AND METHODS …
Impact of CT slice thickness on volume and dose evaluation during thoracic cancer radiotherapy
H Luo, Y He, F Jin, D Yang, X Liu, X Ran… - Cancer Management …, 2018 - Taylor & Francis
Introduction Accurate delineation of targets and organs at risk (OAR) is required to ensure
treatment efficacy and minimize risk of normal tissue toxicity with radiotherapy. Therefore, we …
treatment efficacy and minimize risk of normal tissue toxicity with radiotherapy. Therefore, we …