MRI interobserver reliability in rectal tumor angulation

Malene Rv Pedersen; Peter O Otto; Helle Precht; Søren R Rafaelsen

doi:10.1177/20584601221081292

MRI interobserver reliability in rectal tumor angulation

Malene Rv Pedersen^*, Peter O Otto, Helle Precht, Søren R Rafaelsen

^*Kontaktforfatter

University College Lillebælt

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

34 Downloads (Pure)

Abstract

Background: When rectal tumors are examined using magnetic resonance imaging (MRI) the perpendicular angulation of the axial T2-weighted image to the tumor axis is essential for a correct measure of the shortest distance between tumor and mesorectal facia.

Purpose: The purpose of this study was to determine the interobserver variability in rectal tumor angulation between a radiologist and a radiographer.

Material and Methods: Two observers performed the angulation independently. All MRI examinations were performed using an MRI 1.5 Tesla unit. A Bland-Altman plot was used to assess the interobserver variance and Intraclass correlation coefficient (ICC) statistic was used to assess the interobserver reliability.

Results: MRI was performed in 55 patients with rectal cancer during a one-year period (25 (45.5%) women and 30 (54.5%) men). The median age was 71 years (range 46-87 years). The rectal tumor mean length was 3.9 cm. The interobserver reliability was good (ICC = 0.83, 95% confidence interval 0.72-0.90).

Conclusion: Radiographers receiving training will be able to perform MRI rectal tumor angulation.

Originalsprog	Engelsk
Tidsskrift	Acta Radiologica Open
Vol/bind	11
Udgave nummer	2
Sider (fra-til)	1-6
ISSN	2058-4601
DOI	https://doi.org/10.1177/20584601221081292
Status	Udgivet - feb. 2022

Bibliografisk note

Dokumenter og links

10.1177/20584601221081292Licens: CC BY-NC

Open Access VersionForlagets udgivne version, 856 KBLicens: CC BY-NC

Citationsformater

@article{e13bc32962e349dea262d1fcba11c84e,

title = "MRI interobserver reliability in rectal tumor angulation",

abstract = "Background: When rectal tumors are examined using magnetic resonance imaging (MRI) the perpendicular angulation of the axial T2-weighted image to the tumor axis is essential for a correct measure of the shortest distance between tumor and mesorectal facia.Purpose: The purpose of this study was to determine the interobserver variability in rectal tumor angulation between a radiologist and a radiographer.Material and Methods: Two observers performed the angulation independently. All MRI examinations were performed using an MRI 1.5 Tesla unit. A Bland-Altman plot was used to assess the interobserver variance and Intraclass correlation coefficient (ICC) statistic was used to assess the interobserver reliability.Results: MRI was performed in 55 patients with rectal cancer during a one-year period (25 (45.5%) women and 30 (54.5%) men). The median age was 71 years (range 46-87 years). The rectal tumor mean length was 3.9 cm. The interobserver reliability was good (ICC = 0.83, 95% confidence interval 0.72-0.90).Conclusion: Radiographers receiving training will be able to perform MRI rectal tumor angulation.",

author = "Pedersen, {Malene Rv} and Otto, {Peter O} and Helle Precht and Rafaelsen, {S{\o}ren R}",

note = "{\textcopyright} The Author(s) 2022.",

year = "2022",

month = feb,

doi = "10.1177/20584601221081292",

language = "English",

volume = "11",

pages = "1--6",

journal = "Acta Radiologica Open",

issn = "2058-4601",

publisher = "SAGE Publications",

number = "2",

}

TY - JOUR

T1 - MRI interobserver reliability in rectal tumor angulation

AU - Pedersen, Malene Rv

AU - Otto, Peter O

AU - Precht, Helle

AU - Rafaelsen, Søren R

PY - 2022/2

Y1 - 2022/2

N2 - Background: When rectal tumors are examined using magnetic resonance imaging (MRI) the perpendicular angulation of the axial T2-weighted image to the tumor axis is essential for a correct measure of the shortest distance between tumor and mesorectal facia.Purpose: The purpose of this study was to determine the interobserver variability in rectal tumor angulation between a radiologist and a radiographer.Material and Methods: Two observers performed the angulation independently. All MRI examinations were performed using an MRI 1.5 Tesla unit. A Bland-Altman plot was used to assess the interobserver variance and Intraclass correlation coefficient (ICC) statistic was used to assess the interobserver reliability.Results: MRI was performed in 55 patients with rectal cancer during a one-year period (25 (45.5%) women and 30 (54.5%) men). The median age was 71 years (range 46-87 years). The rectal tumor mean length was 3.9 cm. The interobserver reliability was good (ICC = 0.83, 95% confidence interval 0.72-0.90).Conclusion: Radiographers receiving training will be able to perform MRI rectal tumor angulation.

AB - Background: When rectal tumors are examined using magnetic resonance imaging (MRI) the perpendicular angulation of the axial T2-weighted image to the tumor axis is essential for a correct measure of the shortest distance between tumor and mesorectal facia.Purpose: The purpose of this study was to determine the interobserver variability in rectal tumor angulation between a radiologist and a radiographer.Material and Methods: Two observers performed the angulation independently. All MRI examinations were performed using an MRI 1.5 Tesla unit. A Bland-Altman plot was used to assess the interobserver variance and Intraclass correlation coefficient (ICC) statistic was used to assess the interobserver reliability.Results: MRI was performed in 55 patients with rectal cancer during a one-year period (25 (45.5%) women and 30 (54.5%) men). The median age was 71 years (range 46-87 years). The rectal tumor mean length was 3.9 cm. The interobserver reliability was good (ICC = 0.83, 95% confidence interval 0.72-0.90).Conclusion: Radiographers receiving training will be able to perform MRI rectal tumor angulation.

U2 - 10.1177/20584601221081292

DO - 10.1177/20584601221081292

M3 - Journal article

C2 - 35223087

SN - 2058-4601

VL - 11

SP - 1

EP - 6

JO - Acta Radiologica Open

JF - Acta Radiologica Open

IS - 2

ER -

MRI interobserver reliability in rectal tumor angulation

Abstract

Bibliografisk note

Dokumenter og links

Fingeraftryk

Citationsformater