question: In July my husband had an MRI after loss of immediate memory and it showed that he had a stroke (silent).Then after a couple of weeks he felt bad s he went to the hospital and they found a blood clot  in his left lung, and he was hospitalized for a week and he was kept on intrevinous blood thinners. He was released, and has been on warfarin since then. His memory has not improved and he is disoriented and feels bad most of the time so the doctor ordered another MRI of his brain. The report shows that he has a chronic lacunar infarct involving the right thalamus which was subacute at the time of the previous  examination. Can you give us any information that might help us understand this report?