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(2011)
The MAPS (Matrix and Platinum Science) Trial: primary results. In: Proceedings of the Eighth Annual Meeting of the Society of NeuroInterventional Surgery, Colorado Springs, Colorado
B. Farrell, J. Godwin, S. Richards, C. Warlow (1991)
The United Kingdom transient ischaemic attack (UK-TIA) aspirin trial: final results.Journal of Neurology, Neurosurgery & Psychiatry, 54
A. Molyneux, Alison Clarke, M. Sneade, Z. Mehta, S. Coley, D. Roy, D. Kallmes, A. Fox (2012)
Cerecyte Coil Trial: Angiographic Outcomes of a Prospective Randomized Trial Comparing Endovascular Coiling of Cerebral Aneurysms With Either Cerecyte or Bare Platinum CoilsStroke, 43
W. Daugherty, A. Rad, J. White, P. Meyers, G. Lanzino, H. Cloft, J. Gordon, D. Kallmes (2011)
Observer Agreement Regarding the Necessity of Retreatment of Previously Coiled Recurrent Cerebral AneurysmsAmerican Journal of Neuroradiology, 32
É. Tollard, T. Darsaut, F. Bing, F. Guilbert, G. Gevry, Jean Raymond (2012)
Outcomes of Endovascular Treatments of Aneurysms: Observer Variability and Implications for Interpreting Case Series and Planning Randomized TrialsAmerican Journal of Neuroradiology, 33
P. White, S. Lewis, A. Gholkar, R. Sellar, H. Nahser, C. Cognard, Lynn Forrester, J. Wardlaw (2011)
Hydrogel-coated coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms (HELPS): a randomised controlled trialThe Lancet, 377
H. Cloft, T. Kaufmann, D. Kallmes (2007)
Observer agreement in the assessment of endovascular aneurysm therapy and aneurysm recurrence.AJNR. American journal of neuroradiology, 28 3
R. Team (2014)
R: A language and environment for statistical computing.MSOR connections, 1
BACKGROUND AND PURPOSE: The degree of variation in retreatment decisions for residual or recurrent aneurysms among endovascular therapists remains poorly defined. We performed a multireader study to determine what reader and patient variables contribute to this variation. MATERIALS AND METHODS: Seven endovascular therapists (4 neuroradiologists, 3 neurosurgeons) independently reviewed 66 cases of patients treated with endovascular coil embolization for ruptured or unruptured aneurysm. Cases were rated on a 5-point scale recommending for whether to retreat and a recommended retreatment type. Reader agreement was assessed by intraclass correlation coefficient and by identifying cases with a “clinically meaningful difference” (a difference in score that would result in a difference in treatment). Variables that affect reader agreement and retreatment decisions were examined by using the Wilcoxon signed-rank test, Pearson χ 2 test, and linear regression. RESULTS: Overall interobserver variability for decision to retreat was moderate (ICC = 0.50; 95% CI, 0.40–0.61). Clinically meaningful differences between at least 2 readers were present in 61% of cases and were significantly more common among neuroradiologists than neurosurgeons ( P = .0007). Neurosurgeons were more likely to recommend “definitely retreat” than neuroradiologists ( P < .0001). Previously ruptured aneurysms, larger remnant size, and younger patients were associated with more retreat recommendations. Interobserver variability regarding retreatment type was fair overall 0.25 (95% CI, 0.14–0.41) but poor for experienced readers 0.14 (95% CI, 0–0.34). CONCLUSIONS: There is a large amount of interobserver variability regarding the decision to retreat an aneurysm and the type of retreatment. This variability must be reduced to increase consistency in these subjective outcome measurements. ABBREVIATIONS: CI confidence interval ICC intraclass correlation coefficient IQR interquartile range mRS modified Rankin Scale
American Journal of Neuroradiology – American Journal of Neuroradiology
Published: May 1, 2013
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