Characterization of Severe Arterial Phase Respiratory Motion Artifact on Gadoxetate Disodium-Enhanced MRI - Assessment of Interrater Agreement and Reliability.
- Ringe KI Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany.
- Luetkens JA Department of Radiology, University of Bonn, Germany.
- Fimmers R Department of Medical Biometry, Informatics and Epidemiology, University of Bonn, Germany.
- Hammerstingl RM Department of Diagnostic and Interventional Radiology, Clinic of the Goethe University, Frankfurt, Germany.
- Layer G Department of Diagnostic and Interventional Radiology, Ludwigshafen Hospital, Hannover, Germany.
- Maurer MH Department of Radiology, University Hospital Bern, Switzerland.
- Nähle CP Division of Radiology and Nuclear Medicine, Cantonal Hospital St. Gallen, Switzerland.
- Michalik S Department of Radiology, Asklepios Hospital Altona, Hamburg, Germany.
- Reimer P Institute of Diagnostic and Interventional Radiology, Hospital Karlsruhe, Germany.
- Schraml C Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Germany.
- Schreyer AG Department of Radiology, University Hospital Regensburg, Germany.
- Stumpp P Department of Radiology, University Hospital Leipzig, Germany.
- Vogl TJ Department of Diagnostic and Interventional Radiology, Clinic of the Goethe University, Frankfurt, Germany.
- Wacker FK Department of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany.
- Willinek W Department of Radiology, Hospital of Barmherzige Brüder, Trier, Germany.
- Kukuk GM Department of Radiology, University of Bonn, Germany.
- 2018-02-16
Published in:
- RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin. - 2018
Artifacts
Attitude of Health Personnel
Gadolinium DTPA
Germany
Injections, Intravenous
Liver
Magnetic Resonance Imaging
Observer Variation
Prospective Studies
Pulsatile Flow
Radiologists
Reproducibility of Results
Respiratory Mechanics
Switzerland
English
PURPOSE
To assess the interrater agreement and reliability of experienced abdominal radiologists in the characterization and grading of arterial phase gadoxetate disodium-related respiratory motion artifact on liver MRI.
MATERIALS AND METHODS
This prospective multicenter study was initiated by the working group for abdominal imaging within the German Roentgen Society (DRG), and approved by the local IRB of each participating center. 11 board-certified radiologists independently reviewed 40 gadoxetate disodium-enhanced liver MRI datasets. Motion artifacts in the arterial phase were assessed on a 5-point scale. Interrater agreement and reliability were calculated using the intraclass correlation coefficient (ICC) and Kendall coefficient of concordance (W), with p < 0.05 deemed significant.
RESULTS
The ICC for interrater agreement and reliability were 0.983 (CI 0.973 - 0.990) and 0.985 (CI 0.978 - 0.991), respectively (both p < 0.0001), indicating excellent agreement and reliability. Kendall's W for interrater agreement was 0.865. A severe motion artifact, defined as a mean motion score ≥ 4 in the arterial phase was observed in 12 patients. In these specific cases, a motion score ≥ 4 was assigned by all readers in 75 % (n = 9/12 cases).
CONCLUSION
Differentiation and grading of arterial phase respiratory motion artifact is possible with a high level of inter-/intrarater agreement and interrater reliability, which is crucial for assessing the incidence of this phenomenon in larger multicenter studies.
KEY POINTS
· Inter- and intrarater agreement for motion artifact scoring is excellent among experienced readers.. · Interrater reliability for motion artifact scoring is excellent among experienced readers.. · Characterization of severe motion artifacts proved feasible in this multicenter study..
CITATION FORMAT
· Ringe KI, Luetkens JA, Fimmers R et al. Characterization of Severe Arterial Phase Respiratory Motion Artifact on Gadoxetate Disodium-Enhanced MRI - Assessment of Interrater Agreement and Reliability. Fortschr Röntgenstr 2017; 190: 341 - 347.
To assess the interrater agreement and reliability of experienced abdominal radiologists in the characterization and grading of arterial phase gadoxetate disodium-related respiratory motion artifact on liver MRI.
MATERIALS AND METHODS
This prospective multicenter study was initiated by the working group for abdominal imaging within the German Roentgen Society (DRG), and approved by the local IRB of each participating center. 11 board-certified radiologists independently reviewed 40 gadoxetate disodium-enhanced liver MRI datasets. Motion artifacts in the arterial phase were assessed on a 5-point scale. Interrater agreement and reliability were calculated using the intraclass correlation coefficient (ICC) and Kendall coefficient of concordance (W), with p < 0.05 deemed significant.
RESULTS
The ICC for interrater agreement and reliability were 0.983 (CI 0.973 - 0.990) and 0.985 (CI 0.978 - 0.991), respectively (both p < 0.0001), indicating excellent agreement and reliability. Kendall's W for interrater agreement was 0.865. A severe motion artifact, defined as a mean motion score ≥ 4 in the arterial phase was observed in 12 patients. In these specific cases, a motion score ≥ 4 was assigned by all readers in 75 % (n = 9/12 cases).
CONCLUSION
Differentiation and grading of arterial phase respiratory motion artifact is possible with a high level of inter-/intrarater agreement and interrater reliability, which is crucial for assessing the incidence of this phenomenon in larger multicenter studies.
KEY POINTS
· Inter- and intrarater agreement for motion artifact scoring is excellent among experienced readers.. · Interrater reliability for motion artifact scoring is excellent among experienced readers.. · Characterization of severe motion artifacts proved feasible in this multicenter study..
CITATION FORMAT
· Ringe KI, Luetkens JA, Fimmers R et al. Characterization of Severe Arterial Phase Respiratory Motion Artifact on Gadoxetate Disodium-Enhanced MRI - Assessment of Interrater Agreement and Reliability. Fortschr Röntgenstr 2017; 190: 341 - 347.
- Language
-
- English
- Open access status
- bronze
- Identifiers
-
- DOI 10.1055/s-0044-100727
- PMID 29448290
- Persistent URL
- https://sonar.ch/global/documents/235852
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