Fig. 1From: Safety and tracking of intrathecal allogeneic mesenchymal stem cell transplantation in healthy and diseased horsesScintigraphic images obtained immediately after AO (a) and LS (b) injection of radiolabeled ASCs. The focal round area of intense radioactive signal are external markers placed on the second cervical vertebra (C2), the eighteenth thoracic vertebra (T18), and the third sacral vertebra (S3). The bottom row shows fusion of the scintigraphic images with radiographs after AO (c) and LS (d) injection to help with anatomical localization of the ASCsBack to article page