Abstract
We read with great interest the study by Demaerschalk et al1 in the September edition of Stroke, regarding the validity of smartphone-based assessment of brain computerized tomography scans in the context of acute stroke syndromes. We commend the authors on their excellent study and believe it would be enhanced by discussion of the following issues. The ability to view images on a smartphone of sufficient quality to detect subtle pathology remains a valid concern. The authors demonstrate a high level of agreement for identification of intracranial hemorrhage, neoplasm, or any radiological contraindication to thrombolysis on an iPhone 4 display compared with PACS and desktop. However, the level of agreement diminishes for early ischemic changes and hyperdense artery sign. This may be partially attributed to the small sample size, but …
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