Cardiac arrest [427.5], Reason for Study: ^Reason: extent of brain injury after MI History: cardiac arrest There are restricted diffusion lesions on bilateral basal ganglia, thalami, caudate nucleus, midbrain and bilateral hippocampal gyri. Especially on bilateral basal ganglia lesions, there are scattered susceptibility artifact on gradient-echo technique indicating possible petechial hemorrhagic conversion. Above described findings are compatible with diffuse anoxic injury of the brain.The ventricles, sulci and cisterns are symmetric and unremarkable. There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection. The midline structures and cranial-cervical junction are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
Multifocal restricted diffusion areas with scattered susceptibility artifacts especially on bilateral basal ganglia, consistent with diffuse anoxic injury of the brain with a possible petechial hemorrhagic conversion on bilateral basal ganglia lesions as described above.