Perception errors with double-contrast enema after a positive guaiac test

Jan Kewenter; Jörn Jensen; Marianne Boijsen; Gerhard Lycke; Ulf Tylen

doi:10.1007/BF01885109

Perception errors with double-contrast enema after a positive guaiac test

Jan Kewenter, Jörn Jensen, Marianne Boijsen, Gerhard Lycke, Ulf Tylen

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

18 Scopus citations

Abstract

Between 3 and 6 of 12 colorectal neoplasms larger than 1 cm in diameter were overlooked by each of 4 radiologists in 117 individuals investigated with double-contrast enema (DCE) after a positive guaiac test. Even when the individual results of 2, 3, or 4 experienced radiologists were combined, 2 small carcinomas were overlooked due to perception errors. One of these carcinomas was diagnosed by rectosigmoidoscopy, which is an important and necessary complement to DCE. Although small carcinomas may be missed even with this combination, meticulous exploitation of the 2 methods is absolutely necessary to minimize the risk of missing a colorectal neoplasm. A drawback when 2 or more radiologists read the radiographs is the increased number of false-positive findings.

Original language	English (US)
Pages (from-to)	79-82
Number of pages	4
Journal	Gastrointestinal Radiology
Volume	12
Issue number	1
DOIs	https://doi.org/10.1007/BF01885109
State	Published - Dec 1987
Externally published	Yes

Keywords

Colorectal neoplasm
Double-contrast barium enema
Fecal occult blood testing
Rectosigmoidoscopy

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging
Gastroenterology

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10.1007/BF01885109

Cite this

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abstract = "Between 3 and 6 of 12 colorectal neoplasms larger than 1 cm in diameter were overlooked by each of 4 radiologists in 117 individuals investigated with double-contrast enema (DCE) after a positive guaiac test. Even when the individual results of 2, 3, or 4 experienced radiologists were combined, 2 small carcinomas were overlooked due to perception errors. One of these carcinomas was diagnosed by rectosigmoidoscopy, which is an important and necessary complement to DCE. Although small carcinomas may be missed even with this combination, meticulous exploitation of the 2 methods is absolutely necessary to minimize the risk of missing a colorectal neoplasm. A drawback when 2 or more radiologists read the radiographs is the increased number of false-positive findings.",

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AU - Kewenter, Jan

AU - Jensen, Jörn

AU - Boijsen, Marianne

AU - Lycke, Gerhard

AU - Tylen, Ulf

PY - 1987/12

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AB - Between 3 and 6 of 12 colorectal neoplasms larger than 1 cm in diameter were overlooked by each of 4 radiologists in 117 individuals investigated with double-contrast enema (DCE) after a positive guaiac test. Even when the individual results of 2, 3, or 4 experienced radiologists were combined, 2 small carcinomas were overlooked due to perception errors. One of these carcinomas was diagnosed by rectosigmoidoscopy, which is an important and necessary complement to DCE. Although small carcinomas may be missed even with this combination, meticulous exploitation of the 2 methods is absolutely necessary to minimize the risk of missing a colorectal neoplasm. A drawback when 2 or more radiologists read the radiographs is the increased number of false-positive findings.

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Perception errors with double-contrast enema after a positive guaiac test

Abstract

Keywords

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