Abstract
Response: We appreciate the opportunity to respond to Drs Nederkoorn and van der Graaf in regards to our recent paper entitled “Diagnostic Accuracy of Magnetic Resonance Angiography (MRA) for Internal Carotid Artery Disease: A Systematic Review and Meta-Analysis.”1 In agreement with their statement, we believe that a critical analysis of the existing literature and a pooled estimate of the data are a necessary and beneficial addition to this field. More than 11 000 abstracts were screened for the selection of potential articles to be included in this meta-analysis, which investigated the diagnostic accuracy of both time-of-flight (TOF) MRA and contrast-enhanced (CE) MRA. Of these abstracts, a total of 96 articles were selected for thorough examination. Of these 96, Drs Nederkoorn and van der Graaf, along with their colleagues, had published 3 articles in the period of 2002 to 2003 addressing this issue.2–4 Though it is not stated in any of the three papers that similar data involving an overlap of study …
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