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. 2017 May 2;19(2):222–228. doi: 10.5853/jos.2016.01739

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Copyright © 2017 Korean Stroke Society

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — This picture showed a typical case of relative filling time delay (rFTD): a 71-year-old male patient presenting with left hemiplegia and dysphasia arrived hospital and underwent computer tomography examination 81 minutes after onset. Computer tomography angiography indicated the occluded right internal carotid artery and M1 segment of the right middle cerebral artery. Computer tomography perfusion source imaging (CTP-SI) illustrated that contrast signal (red arrow) firstly appeared in the normal side’s Sylvian fissure in 7:43:46 PM (A), whereas showed up in the occlusion side’s Sylvain fissure in 7:43:56 PM (B), therefore, the time gap of 10 s between bilateral contrast appearances in Sylvian fissure was identified as an rFTD.