Target volume delineation variation in radiotherapy for early stage rectal cancer in the Netherlands

Jasper Nijkamp; Danielle F. M. de Haas-Kock; Jannet C. Beukema; Karen J. Neelis; Dankert Woutersen; Heleen Ceha; Tom Rozema; Annerie Slot; Hanneke Vos-Westerman; Martijn Intven; Patty H. Spruit; Yvette van der Linden; Debby Geijsen; Karijn Verschueren; Marcel B. van Herk; Corrie A. M. Marijnen

doi:10.1016/j.radonc.2011.08.011

Target volume delineation variation in radiotherapy for early stage rectal cancer in the Netherlands

Jasper Nijkamp, Danielle F. M. de Haas-Kock, Jannet C. Beukema, Karen J. Neelis, Dankert Woutersen, Heleen Ceha, Tom Rozema, Annerie Slot, Hanneke Vos-Westerman, Martijn Intven, Patty H. Spruit, Yvette van der Linden, Debby Geijsen, Karijn Verschueren, Marcel B. van Herk, Corrie A. M. Marijnen^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

The aim of this study was to measure and improve the quality of target volume delineation by means of national consensus on target volume definition in early-stage rectal cancer.The CTV's for eight patients were delineated by 11 radiation oncologists in 10 institutes according to local guidelines (phase 1). After observer variation analysis a workshop was organized to establish delineation guidelines and a digital atlas, with which the same observers re-delineated the dataset (phase 2). Variation in volume, most caudal and cranial slice and local surface distance variation were analyzed.The average delineated CTV volume decreased from 620 to 460 cc (p

Original language	English
Pages (from-to)	14-21
Journal	Radiotherapy and Oncology
Volume	102
Issue number	1
DOIs	https://doi.org/10.1016/j.radonc.2011.08.011
Publication status	Published - Jan 2012

Keywords

Delineation variation
Rectal cancer
Delineation atlas
Clinical target volume

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10.1016/j.radonc.2011.08.011

Cite this

Nijkamp, J., de Haas-Kock, D. F. M., Beukema, J. C., Neelis, K. J., Woutersen, D., Ceha, H., Rozema, T., Slot, A., Vos-Westerman, H., Intven, M., Spruit, P. H., van der Linden, Y., Geijsen, D., Verschueren, K., van Herk, M. B., & Marijnen, C. A. M. (2012). Target volume delineation variation in radiotherapy for early stage rectal cancer in the Netherlands. Radiotherapy and Oncology, 102(1), 14-21. https://doi.org/10.1016/j.radonc.2011.08.011

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title = "Target volume delineation variation in radiotherapy for early stage rectal cancer in the Netherlands",

abstract = "The aim of this study was to measure and improve the quality of target volume delineation by means of national consensus on target volume definition in early-stage rectal cancer.The CTV's for eight patients were delineated by 11 radiation oncologists in 10 institutes according to local guidelines (phase 1). After observer variation analysis a workshop was organized to establish delineation guidelines and a digital atlas, with which the same observers re-delineated the dataset (phase 2). Variation in volume, most caudal and cranial slice and local surface distance variation were analyzed.The average delineated CTV volume decreased from 620 to 460 cc (p",

keywords = "Delineation variation, Rectal cancer, Delineation atlas, Clinical target volume",

author = "Jasper Nijkamp and {de Haas-Kock}, {Danielle F. M.} and Beukema, {Jannet C.} and Neelis, {Karen J.} and Dankert Woutersen and Heleen Ceha and Tom Rozema and Annerie Slot and Hanneke Vos-Westerman and Martijn Intven and Spruit, {Patty H.} and {van der Linden}, Yvette and Debby Geijsen and Karijn Verschueren and {van Herk}, {Marcel B.} and Marijnen, {Corrie A. M.}",

year = "2012",

month = jan,

doi = "10.1016/j.radonc.2011.08.011",

language = "English",

volume = "102",

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Nijkamp, J, de Haas-Kock, DFM, Beukema, JC, Neelis, KJ, Woutersen, D, Ceha, H, Rozema, T, Slot, A, Vos-Westerman, H, Intven, M, Spruit, PH, van der Linden, Y, Geijsen, D, Verschueren, K, van Herk, MB & Marijnen, CAM 2012, 'Target volume delineation variation in radiotherapy for early stage rectal cancer in the Netherlands', Radiotherapy and Oncology, vol. 102, no. 1, pp. 14-21. https://doi.org/10.1016/j.radonc.2011.08.011

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AU - Nijkamp, Jasper

AU - de Haas-Kock, Danielle F. M.

AU - Beukema, Jannet C.

AU - Neelis, Karen J.

AU - Woutersen, Dankert

AU - Ceha, Heleen

AU - Rozema, Tom

AU - Slot, Annerie

AU - Vos-Westerman, Hanneke

AU - Intven, Martijn

AU - Spruit, Patty H.

AU - van der Linden, Yvette

AU - Geijsen, Debby

AU - Verschueren, Karijn

AU - van Herk, Marcel B.

AU - Marijnen, Corrie A. M.

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KW - Rectal cancer

KW - Delineation atlas

KW - Clinical target volume

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