CT colonography polyp matching: Differences between experienced readers

Marjolein H. Liedenbaum; Ayso H. Vries; Steve Halligan; Patrick M.M. Bossuyt; Abraham H. Dachman; Evelien Dekker; Jasper Florie; Stefaan S. Gryspeerdt; Sebastiaan Jensch; C. Daniel Johnson; Andrea Laghi; Stuart A. Taylor; Jaap Stoker

doi:10.1007/s00330-009-1328-3

CT colonography polyp matching: Differences between experienced readers

Marjolein H. Liedenbaum, Ayso H. Vries, Steve Halligan, Patrick M.M. Bossuyt, Abraham H. Dachman, Evelien Dekker, Jasper Florie, Stefaan S. Gryspeerdt, Sebastiaan Jensch, C. Daniel Johnson, Andrea Laghi, Stuart A. Taylor, Jaap Stoker

Diagnostic Radiology

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

11 Scopus citations

Abstract

The purpose of this study was to investigate if experienced readers differ when matching polyps shown by both CT colonography (CTC) and optical colonoscopy (OC) and to explore the reasons for discrepancy. Twenty-eight CTC cases with corresponding OC were presented to eight experienced CTC readers. Cases represented a broad spectrum of findings, not completely fulfilling typical matching criteria. In 21 cases there was a single polyp on CTC and OC; in seven there were multiple polyps. Agreement between readers for matching was analyzed. For the 21 single-polyp cases, the number of correct matches per reader varied from 13 to 19. Almost complete agreement between readers was observed in 15 cases (71%), but substantial discrepancy was found for the remaining six (29%) probably due to large perceived differences in polyp size between CT and OC. Readers were able to match between 27 (71%) and 35 (92%) of the 38 CTC detected polyps in the seven cases with multiple polyps. Experienced CTC readers agree to a considerable extent when matching polyps between CTC and subsequent OC, but non-negligible disagreement exists.

Original language	English (US)
Pages (from-to)	1723-1730
Number of pages	8
Journal	European radiology
Volume	19
Issue number	7
DOIs	https://doi.org/10.1007/s00330-009-1328-3
State	Published - 2009

Keywords

CT colonography
Colonoscopy
Colorectal neoplasia
Colorectal polyps
Polyp matching

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

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10.1007/s00330-009-1328-3

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title = "CT colonography polyp matching: Differences between experienced readers",

abstract = "The purpose of this study was to investigate if experienced readers differ when matching polyps shown by both CT colonography (CTC) and optical colonoscopy (OC) and to explore the reasons for discrepancy. Twenty-eight CTC cases with corresponding OC were presented to eight experienced CTC readers. Cases represented a broad spectrum of findings, not completely fulfilling typical matching criteria. In 21 cases there was a single polyp on CTC and OC; in seven there were multiple polyps. Agreement between readers for matching was analyzed. For the 21 single-polyp cases, the number of correct matches per reader varied from 13 to 19. Almost complete agreement between readers was observed in 15 cases (71%), but substantial discrepancy was found for the remaining six (29%) probably due to large perceived differences in polyp size between CT and OC. Readers were able to match between 27 (71%) and 35 (92%) of the 38 CTC detected polyps in the seven cases with multiple polyps. Experienced CTC readers agree to a considerable extent when matching polyps between CTC and subsequent OC, but non-negligible disagreement exists.",

keywords = "CT colonography, Colonoscopy, Colorectal neoplasia, Colorectal polyps, Polyp matching",

author = "Liedenbaum, {Marjolein H.} and Vries, {Ayso H.} and Steve Halligan and Bossuyt, {Patrick M.M.} and Dachman, {Abraham H.} and Evelien Dekker and Jasper Florie and Gryspeerdt, {Stefaan S.} and Sebastiaan Jensch and Johnson, {C. Daniel} and Andrea Laghi and Taylor, {Stuart A.} and Jaap Stoker",

year = "2009",

doi = "10.1007/s00330-009-1328-3",

language = "English (US)",

volume = "19",

pages = "1723--1730",

journal = "European radiology",

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T1 - CT colonography polyp matching

T2 - Differences between experienced readers

AU - Liedenbaum, Marjolein H.

AU - Vries, Ayso H.

AU - Halligan, Steve

AU - Bossuyt, Patrick M.M.

AU - Dachman, Abraham H.

AU - Dekker, Evelien

AU - Florie, Jasper

AU - Gryspeerdt, Stefaan S.

AU - Jensch, Sebastiaan

AU - Johnson, C. Daniel

AU - Laghi, Andrea

AU - Taylor, Stuart A.

AU - Stoker, Jaap

PY - 2009

Y1 - 2009

N2 - The purpose of this study was to investigate if experienced readers differ when matching polyps shown by both CT colonography (CTC) and optical colonoscopy (OC) and to explore the reasons for discrepancy. Twenty-eight CTC cases with corresponding OC were presented to eight experienced CTC readers. Cases represented a broad spectrum of findings, not completely fulfilling typical matching criteria. In 21 cases there was a single polyp on CTC and OC; in seven there were multiple polyps. Agreement between readers for matching was analyzed. For the 21 single-polyp cases, the number of correct matches per reader varied from 13 to 19. Almost complete agreement between readers was observed in 15 cases (71%), but substantial discrepancy was found for the remaining six (29%) probably due to large perceived differences in polyp size between CT and OC. Readers were able to match between 27 (71%) and 35 (92%) of the 38 CTC detected polyps in the seven cases with multiple polyps. Experienced CTC readers agree to a considerable extent when matching polyps between CTC and subsequent OC, but non-negligible disagreement exists.

AB - The purpose of this study was to investigate if experienced readers differ when matching polyps shown by both CT colonography (CTC) and optical colonoscopy (OC) and to explore the reasons for discrepancy. Twenty-eight CTC cases with corresponding OC were presented to eight experienced CTC readers. Cases represented a broad spectrum of findings, not completely fulfilling typical matching criteria. In 21 cases there was a single polyp on CTC and OC; in seven there were multiple polyps. Agreement between readers for matching was analyzed. For the 21 single-polyp cases, the number of correct matches per reader varied from 13 to 19. Almost complete agreement between readers was observed in 15 cases (71%), but substantial discrepancy was found for the remaining six (29%) probably due to large perceived differences in polyp size between CT and OC. Readers were able to match between 27 (71%) and 35 (92%) of the 38 CTC detected polyps in the seven cases with multiple polyps. Experienced CTC readers agree to a considerable extent when matching polyps between CTC and subsequent OC, but non-negligible disagreement exists.

KW - CT colonography

KW - Colonoscopy

KW - Colorectal neoplasia

KW - Colorectal polyps

KW - Polyp matching

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CT colonography polyp matching: Differences between experienced readers

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