PortalPublikationenInterobserver variability in the characterization of giant i...

Interobserver variability in the characterization of giant intracranial aneurysms with special emphasis on aneurysm diameter and shape

Standard

Interobserver variability in the characterization of giant intracranial aneurysms with special emphasis on aneurysm diameter and shape. / Wostrack, Maria; Mielke, Dorothee; Kato, Naoki; Guhl, Susanne; Schmidt, Nils Ole; Maldaner, Nicolai; Vajkoczy, Peter; Dengler, Julius; Giant Intracranial Aneurysm Registry Study Group.

in: ACTA NEUROCHIR, 22.09.2015.

Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung

Harvard

Wostrack, M, Mielke, D, Kato, N, Guhl, S, Schmidt, NO, Maldaner, N, Vajkoczy, P, Dengler, J & Giant Intracranial Aneurysm Registry Study Group 2015, 'Interobserver variability in the characterization of giant intracranial aneurysms with special emphasis on aneurysm diameter and shape', ACTA NEUROCHIR. https://doi.org/10.1007/s00701-015-2587-1

APA

Wostrack, M., Mielke, D., Kato, N., Guhl, S., Schmidt, N. O., Maldaner, N., Vajkoczy, P., Dengler, J., & Giant Intracranial Aneurysm Registry Study Group (2015). Interobserver variability in the characterization of giant intracranial aneurysms with special emphasis on aneurysm diameter and shape. ACTA NEUROCHIR. https://doi.org/10.1007/s00701-015-2587-1

Vancouver

Wostrack M, Mielke D, Kato N, Guhl S, Schmidt NO, Maldaner N et al. Interobserver variability in the characterization of giant intracranial aneurysms with special emphasis on aneurysm diameter and shape. ACTA NEUROCHIR. 2015 Sep 22. https://doi.org/10.1007/s00701-015-2587-1

Bibtex

@article{ab9f029570a849ad8195bdbe814c617d,
title = "Interobserver variability in the characterization of giant intracranial aneurysms with special emphasis on aneurysm diameter and shape",
abstract = "BACKGROUND: The Giant Intracranial Aneurysm Registry is a multicenter observational trial exclusively focusing on giant intracranial aneurysms (GIA). As no data exist on the interobserver variability in the radiological description of GIA, there is some uncertainty concerning the reliability of the GIA characteristics included in the registry. We have therefore designed a study to test the interobserver variability in the description of the specific GIA characteristics that are examined in the GIA registry.METHODS: Six different raters analyzed imaging of five GIA concerning GIA location, GIA size, GIA shape, GIA thrombosis, and the presence of perianeurysmal edema. Interobserver variability was examined using intraclass correlation and Fleiss' kappa analysis.RESULTS: The intraclass correlation coefficient was 0.99 (95 % CI 0.97-1.0) for the largest GIA diameter and 0.98 (95 % CI 0.94-1.0) for the largest GIA diameter in an axial imaging slice. We found perfect interobserver agreement (Fleiss' kappa 1.00) in the characterization of GIA location and the presence of perianeurysmal edema and almost perfect interobserver agreement for GIA thrombosis (Fleiss' kappa 0.86, 95 % CI 0.63-1.00). Only moderate interobserver agreement was found in the description of GIA shape (Fleiss' kappa 0.50, 95 % CI 0.27-0.73).CONCLUSIONS: While GIA size, location, thrombosis, and the presence of perianeurysmal edema showed excellent interobserver agreement, the description of GIA shape was achieved with only moderate agreement. Data on GIA shape in multicenter studies, like the GIA registry, should therefore be discussed with caution and potentially reassessed in a centralized fashion.",
author = "Maria Wostrack and Dorothee Mielke and Naoki Kato and Susanne Guhl and Schmidt, {Nils Ole} and Nicolai Maldaner and Peter Vajkoczy and Julius Dengler and {Giant Intracranial Aneurysm Registry Study Group}",
year = "2015",
month = sep,
day = "22",
doi = "10.1007/s00701-015-2587-1",
language = "English",
journal = "ACTA NEUROCHIR",
issn = "0001-6268",
publisher = "Springer Wien",

}

RIS

TY - JOUR

T1 - Interobserver variability in the characterization of giant intracranial aneurysms with special emphasis on aneurysm diameter and shape

AU - Wostrack, Maria

AU - Mielke, Dorothee

AU - Kato, Naoki

AU - Guhl, Susanne

AU - Schmidt, Nils Ole

AU - Maldaner, Nicolai

AU - Vajkoczy, Peter

AU - Dengler, Julius

AU - Giant Intracranial Aneurysm Registry Study Group

PY - 2015/9/22

Y1 - 2015/9/22

N2 - BACKGROUND: The Giant Intracranial Aneurysm Registry is a multicenter observational trial exclusively focusing on giant intracranial aneurysms (GIA). As no data exist on the interobserver variability in the radiological description of GIA, there is some uncertainty concerning the reliability of the GIA characteristics included in the registry. We have therefore designed a study to test the interobserver variability in the description of the specific GIA characteristics that are examined in the GIA registry.METHODS: Six different raters analyzed imaging of five GIA concerning GIA location, GIA size, GIA shape, GIA thrombosis, and the presence of perianeurysmal edema. Interobserver variability was examined using intraclass correlation and Fleiss' kappa analysis.RESULTS: The intraclass correlation coefficient was 0.99 (95 % CI 0.97-1.0) for the largest GIA diameter and 0.98 (95 % CI 0.94-1.0) for the largest GIA diameter in an axial imaging slice. We found perfect interobserver agreement (Fleiss' kappa 1.00) in the characterization of GIA location and the presence of perianeurysmal edema and almost perfect interobserver agreement for GIA thrombosis (Fleiss' kappa 0.86, 95 % CI 0.63-1.00). Only moderate interobserver agreement was found in the description of GIA shape (Fleiss' kappa 0.50, 95 % CI 0.27-0.73).CONCLUSIONS: While GIA size, location, thrombosis, and the presence of perianeurysmal edema showed excellent interobserver agreement, the description of GIA shape was achieved with only moderate agreement. Data on GIA shape in multicenter studies, like the GIA registry, should therefore be discussed with caution and potentially reassessed in a centralized fashion.

AB - BACKGROUND: The Giant Intracranial Aneurysm Registry is a multicenter observational trial exclusively focusing on giant intracranial aneurysms (GIA). As no data exist on the interobserver variability in the radiological description of GIA, there is some uncertainty concerning the reliability of the GIA characteristics included in the registry. We have therefore designed a study to test the interobserver variability in the description of the specific GIA characteristics that are examined in the GIA registry.METHODS: Six different raters analyzed imaging of five GIA concerning GIA location, GIA size, GIA shape, GIA thrombosis, and the presence of perianeurysmal edema. Interobserver variability was examined using intraclass correlation and Fleiss' kappa analysis.RESULTS: The intraclass correlation coefficient was 0.99 (95 % CI 0.97-1.0) for the largest GIA diameter and 0.98 (95 % CI 0.94-1.0) for the largest GIA diameter in an axial imaging slice. We found perfect interobserver agreement (Fleiss' kappa 1.00) in the characterization of GIA location and the presence of perianeurysmal edema and almost perfect interobserver agreement for GIA thrombosis (Fleiss' kappa 0.86, 95 % CI 0.63-1.00). Only moderate interobserver agreement was found in the description of GIA shape (Fleiss' kappa 0.50, 95 % CI 0.27-0.73).CONCLUSIONS: While GIA size, location, thrombosis, and the presence of perianeurysmal edema showed excellent interobserver agreement, the description of GIA shape was achieved with only moderate agreement. Data on GIA shape in multicenter studies, like the GIA registry, should therefore be discussed with caution and potentially reassessed in a centralized fashion.

U2 - 10.1007/s00701-015-2587-1

DO - 10.1007/s00701-015-2587-1

M3 - SCORING: Journal article

C2 - 26395008

JO - ACTA NEUROCHIR

JF - ACTA NEUROCHIR

SN - 0001-6268

ER -