The MR report card shows that the conical expansion at the beginning of the left posterior traffic suggests that there is a possibility of aneurysm at the beginning of the left posterior traffic branch, and another examination of craniocerebral digital angiography is generally needed to further clarify the diagnosis. 1. If there is no obvious lesion in the artery at the beginning of the left posterior traffic branch after cranial digital angiography, it is necessary to repeat the examination once every half a year to one year, and avoid spicy, stimulating and greasy food in diet. 2. If cranial digital angiography reveals aneurysm of the origin of the left posterior traffic branch, the aneurysm mostly needs surgical treatment, including surgical resection and minimally invasive interventional therapy, and after the surgery, attention should be paid to rest, avoiding fatigue, avoiding emotional excitement, eating a light diet, and in particular, abstaining from smoking and alcohol.