2013
DOI: 10.1186/1748-717x-8-176
|View full text |Cite
|
Sign up to set email alerts
|

Dosimetric impact of inter-observer variability for 3D conformal radiotherapy and volumetric modulated arc therapy: the rectal tumor target definition case

Abstract: BackgroundTo assess the dosimetric effect induced by inter-observer variability in target definition for 3D-conformal RT (3DCRT) and volumetric modulated arc therapy by RapidArc (RA) techniques for rectal cancer treatment.MethodsTen patients with rectal cancer subjected to neo-adjuvant RT were randomly selected from the internal database. Four radiation oncologists independently contoured the clinical target volume (CTV) in blind mode. Planning target volume (PTV) was defined as CTV + 7 mm in the three directi… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

1
19
0

Year Published

2014
2014
2024
2024

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 29 publications
(20 citation statements)
references
References 29 publications
1
19
0
Order By: Relevance
“…Using the eight main diagnostic categories used in the Chicago Classification scheme, we found ‘substantial’ agreement for the key diagnosis of achalasia and ‘fair–moderate’ agreement for classification of esophageal spasm, hypertensive, and hypotensive dysmotility for a large number of participants with a wide range of HRM experience. This performance compares well with inter‐observer agreement reported for ‘conventional manometry’ and is similar to the level of agreement documented for medical imaging in other areas of practice …”
Section: Discussionsupporting
confidence: 85%
See 1 more Smart Citation
“…Using the eight main diagnostic categories used in the Chicago Classification scheme, we found ‘substantial’ agreement for the key diagnosis of achalasia and ‘fair–moderate’ agreement for classification of esophageal spasm, hypertensive, and hypotensive dysmotility for a large number of participants with a wide range of HRM experience. This performance compares well with inter‐observer agreement reported for ‘conventional manometry’ and is similar to the level of agreement documented for medical imaging in other areas of practice …”
Section: Discussionsupporting
confidence: 85%
“…It should be noted that there is no consensus as to what constitutes an acceptable level of inter‐observer agreement for clinical investigations; however, comparison with similar studies performed for medical imaging (e.g. assessment of barium swallows after dysphagic stroke, tumor volume by computed tomography) and endoscopic investigations (e.g. classification of esophagitis) show similar levels of agreement.…”
Section: Discussionmentioning
confidence: 99%
“…There were 25 studies which evaluated the effect of an intervention on IOV in contouring (Table ) . These were divided into three broad categories, those testing the effect of guidelines or protocols, those testing the effect of specific teaching and those testing the effect of autocontour provision (Table ) . All these studies have measured contouring variability before and after an intervention.…”
Section: Resultsmentioning
confidence: 99%
“…This was statistically significant for oesophageal cancer after one-on-one training 4 and rectal cancer CTV after a consensus workshop to discuss inconsistencies and derive contouring guidelines. 34 This was also shown for prostate contouring after small group teaching 32 and rectal contouring after a consensus meeting, 36 although statistical analyses were not performed. Large group didactic teaching of trainees has not shown a significant improvement in lung cancer delineation 26 and small group teaching has not shown an improvement in prostate or rectal contouring.…”
Section: Coefficient Of Variation Cov Sd Meanmentioning
confidence: 96%
See 1 more Smart Citation