Have High BP. Prescribed Depin. CT Scan Shows Cerebral Atrophy

Hi Doc, My mother has been a long term high BP patient.Siince the last 4-5 days,her BP levels were quite high,suddenly she got the news of a family members demise...after 45-60 mts,all of a sudden,her right hand movements became restricted,she started slurring...on doctors telephonic advice Depin 5 mg was punctured and put on her tongue...slowly the slurring stopped but she continued to have interrupted speech-NO memory loss was observed.By the morning,ie almost 24 hrs-she was back to normal,but a CT Scan was done.Findings were- POSTERIOR FOSSA-4th ventricle/ brainstem & cerebellar hemispheres- normal SUPRATENTORIAL- Brain parenchyma shows unremarkable morphology and attentuation values No obvious focal brain parenchymal lesion seen Bilateral ganglio thalamic nuclear complexes-unremarkable 3rd and lateral ventricles are mildly prominent in size with septum in midline basal cisterns,fissures and cerebral sulci are mildly prominent No evidence of significant intra/extra axial collection or hyperdense hemorrhage seen IMPRESSION- CT findings reveal-cerebral atrophy Can you please explain the above in simpler terms and ways....