Reliability of reporting differences in degenerative MRI findings of the lumbar spine from the supine to the upright position

Klaus Doktor; Jan Hartvigsen; Mark Hancock; Henrik Wulff Christensen; Ulrich Fredberg; Eleanor Boyle; Morten Kindt; Lau Brix; Tue Secher Jensen

doi:10.1007/s00256-022-04060-2

Reliability of reporting differences in degenerative MRI findings of the lumbar spine from the supine to the upright position

Klaus Doktor^*, Jan Hartvigsen, Mark Hancock, Henrik Wulff Christensen, Ulrich Fredberg, Eleanor Boyle, Morten Kindt, Lau Brix, Tue Secher Jensen

^*Corresponding author for this work

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Abstract

OBJECTIVE: To determine the inter-rater reliability of identifying differences and types of differences in lumbar degenerative findings comparing supine and upright MRI.

MATERIALS AND METHODS: Fifty-nine participants, low back pain patients (LBP) with or without leg pain and no-LBP individuals were consecutively enrolled to receive supine and upright MRI of the lumbar spine. Three raters independently evaluated the MRIs for degenerative spinal pathologies and compared for differences. Presence/absence of degenerative findings were recorded for all supine and upright images, and then differences from the supine to the upright positions were classified into no-change, appeared, disappeared, worsened, or improved at each individual disc level. Reliability and agreement were calculated using Gwet's agreement coefficients (AC1 or AC2) and absolute agreement.

RESULTS: Inter-rater reliability of evaluating differences in eight degenerative lumbar findings comparing the supine and upright MRI position, ranged from 0.929 to 0.996 according to Gwet's agreement coefficients (AC2). The total number of positive MRI findings in the supine position ranged from 270 to 453, with an average of 366 per rater. Observed differences from supine to upright MRI ranged from 18 to 80, with an average of 56 per rater.

CONCLUSION: Inter-rater reliability was found overall acceptable for classification of differences in eight types of degenerative pathology observed with supine and upright MRI of the lumbar spine. Results were primarily driven by high numbers and high reliability of rating negative findings, whereas agreement regarding positive findings and positive positional differences was lower.

Original language	English
Journal	Skeletal Radiology
Volume	51
Issue	11
Pages (from-to)	2141-2154
Number of pages	14
ISSN	0364-2348
DOIs	https://doi.org/10.1007/s00256-022-04060-2
Publication status	Published - Nov 2022

Keywords

Agreement
Lumbar spine
Positional MRI
Reliability
Reproducibility
Upright MRI
INTERRATER RELIABILITY
LOW-BACK-PAIN
IMAGING FINDINGS
GUIDELINES
AGREEMENT
KAPPA
DISK
Reproducibility of Results
Lumbar Vertebrae/diagnostic imaging
Humans
Magnetic Resonance Imaging/methods
Standing Position
Lumbosacral Region
Low Back Pain/diagnostic imaging
Supine Position

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Reliability of reporting differences in degenerative MRI findings of the lumbar spine from the supine to the upright positionFinal published version, 1.25 MBLicence: CC BY

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@article{c6fe89f058274e459af45882c026b746,

title = "Reliability of reporting differences in degenerative MRI findings of the lumbar spine from the supine to the upright position",

abstract = "OBJECTIVE: To determine the inter-rater reliability of identifying differences and types of differences in lumbar degenerative findings comparing supine and upright MRI.MATERIALS AND METHODS: Fifty-nine participants, low back pain patients (LBP) with or without leg pain and no-LBP individuals were consecutively enrolled to receive supine and upright MRI of the lumbar spine. Three raters independently evaluated the MRIs for degenerative spinal pathologies and compared for differences. Presence/absence of degenerative findings were recorded for all supine and upright images, and then differences from the supine to the upright positions were classified into no-change, appeared, disappeared, worsened, or improved at each individual disc level. Reliability and agreement were calculated using Gwet's agreement coefficients (AC1 or AC2) and absolute agreement.RESULTS: Inter-rater reliability of evaluating differences in eight degenerative lumbar findings comparing the supine and upright MRI position, ranged from 0.929 to 0.996 according to Gwet's agreement coefficients (AC2). The total number of positive MRI findings in the supine position ranged from 270 to 453, with an average of 366 per rater. Observed differences from supine to upright MRI ranged from 18 to 80, with an average of 56 per rater.CONCLUSION: Inter-rater reliability was found overall acceptable for classification of differences in eight types of degenerative pathology observed with supine and upright MRI of the lumbar spine. Results were primarily driven by high numbers and high reliability of rating negative findings, whereas agreement regarding positive findings and positive positional differences was lower.",

keywords = "Agreement, Lumbar spine, Positional MRI, Reliability, Reproducibility, Upright MRI, INTERRATER RELIABILITY, LOW-BACK-PAIN, IMAGING FINDINGS, GUIDELINES, AGREEMENT, KAPPA, DISK, Reproducibility of Results, Lumbar Vertebrae/diagnostic imaging, Humans, Magnetic Resonance Imaging/methods, Standing Position, Lumbosacral Region, Low Back Pain/diagnostic imaging, Supine Position",

author = "Klaus Doktor and Jan Hartvigsen and Mark Hancock and Christensen, {Henrik Wulff} and Ulrich Fredberg and Eleanor Boyle and Morten Kindt and Lau Brix and Jensen, {Tue Secher}",

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

year = "2022",

month = nov,

doi = "10.1007/s00256-022-04060-2",

language = "English",

volume = "51",

pages = "2141--2154",

journal = "Skeletal Radiology",

issn = "0364-2348",

publisher = "Springer",

number = "11",

}

Reliability of reporting differences in degenerative MRI findings of the lumbar spine from the supine to the upright position. / Doktor, Klaus; Hartvigsen, Jan; Hancock, Mark et al.
In: Skeletal Radiology, Vol. 51, No. 11, 11.2022, p. 2141-2154.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

TY - JOUR

T1 - Reliability of reporting differences in degenerative MRI findings of the lumbar spine from the supine to the upright position

AU - Doktor, Klaus

AU - Hartvigsen, Jan

AU - Hancock, Mark

AU - Christensen, Henrik Wulff

AU - Fredberg, Ulrich

AU - Boyle, Eleanor

AU - Kindt, Morten

AU - Brix, Lau

AU - Jensen, Tue Secher

PY - 2022/11

Y1 - 2022/11

N2 - OBJECTIVE: To determine the inter-rater reliability of identifying differences and types of differences in lumbar degenerative findings comparing supine and upright MRI.MATERIALS AND METHODS: Fifty-nine participants, low back pain patients (LBP) with or without leg pain and no-LBP individuals were consecutively enrolled to receive supine and upright MRI of the lumbar spine. Three raters independently evaluated the MRIs for degenerative spinal pathologies and compared for differences. Presence/absence of degenerative findings were recorded for all supine and upright images, and then differences from the supine to the upright positions were classified into no-change, appeared, disappeared, worsened, or improved at each individual disc level. Reliability and agreement were calculated using Gwet's agreement coefficients (AC1 or AC2) and absolute agreement.RESULTS: Inter-rater reliability of evaluating differences in eight degenerative lumbar findings comparing the supine and upright MRI position, ranged from 0.929 to 0.996 according to Gwet's agreement coefficients (AC2). The total number of positive MRI findings in the supine position ranged from 270 to 453, with an average of 366 per rater. Observed differences from supine to upright MRI ranged from 18 to 80, with an average of 56 per rater.CONCLUSION: Inter-rater reliability was found overall acceptable for classification of differences in eight types of degenerative pathology observed with supine and upright MRI of the lumbar spine. Results were primarily driven by high numbers and high reliability of rating negative findings, whereas agreement regarding positive findings and positive positional differences was lower.

AB - OBJECTIVE: To determine the inter-rater reliability of identifying differences and types of differences in lumbar degenerative findings comparing supine and upright MRI.MATERIALS AND METHODS: Fifty-nine participants, low back pain patients (LBP) with or without leg pain and no-LBP individuals were consecutively enrolled to receive supine and upright MRI of the lumbar spine. Three raters independently evaluated the MRIs for degenerative spinal pathologies and compared for differences. Presence/absence of degenerative findings were recorded for all supine and upright images, and then differences from the supine to the upright positions were classified into no-change, appeared, disappeared, worsened, or improved at each individual disc level. Reliability and agreement were calculated using Gwet's agreement coefficients (AC1 or AC2) and absolute agreement.RESULTS: Inter-rater reliability of evaluating differences in eight degenerative lumbar findings comparing the supine and upright MRI position, ranged from 0.929 to 0.996 according to Gwet's agreement coefficients (AC2). The total number of positive MRI findings in the supine position ranged from 270 to 453, with an average of 366 per rater. Observed differences from supine to upright MRI ranged from 18 to 80, with an average of 56 per rater.CONCLUSION: Inter-rater reliability was found overall acceptable for classification of differences in eight types of degenerative pathology observed with supine and upright MRI of the lumbar spine. Results were primarily driven by high numbers and high reliability of rating negative findings, whereas agreement regarding positive findings and positive positional differences was lower.

KW - Agreement

KW - Lumbar spine

KW - Positional MRI

KW - Reliability

KW - Reproducibility

KW - Upright MRI

KW - INTERRATER RELIABILITY

KW - LOW-BACK-PAIN

KW - IMAGING FINDINGS

KW - GUIDELINES

KW - AGREEMENT

KW - KAPPA

KW - DISK

KW - Reproducibility of Results

KW - Lumbar Vertebrae/diagnostic imaging

KW - Humans

KW - Magnetic Resonance Imaging/methods

KW - Standing Position

KW - Lumbosacral Region

KW - Low Back Pain/diagnostic imaging

KW - Supine Position

U2 - 10.1007/s00256-022-04060-2

DO - 10.1007/s00256-022-04060-2

M3 - Journal article

C2 - 35536357

SN - 0364-2348

VL - 51

SP - 2141

EP - 2154

JO - Skeletal Radiology

JF - Skeletal Radiology

IS - 11

ER -

Reliability of reporting differences in degenerative MRI findings of the lumbar spine from the supine to the upright position

Abstract

Keywords

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