Perfusion Brain Magnetic Resonance Image in Patients of Head Trauma

OBJECTIVE: The purpose of this study is to evaluate the findings of magnetic resonance(MR) perfusion study and relation with the prognosis in patients of head trauma. METHODS: Forty-two consecutive patients with head trauma were evaluated and the findings of brain computed tomography(CT) and MR image were compared with MR perfusion study. We classified perfusion MR findings into 5 categories and correlated with the prognosis. RESULTS: In all 42 patients with head trauma, 38 cases(90.5%) showed new lesions of abnormal perfusion pattern in MR perfusion study compared to CT and conventional MR image. Causes of the trauma were motor vehicle accident(73.8%) falling(16.7%), and blows to the head(7.1%) in order of frequency. The cumulative prevalent sites of focal abnormalities were frontal lobe in 11 cases(39.3%), basal ganglia and thalamus 9 cases(32.1%), temporal lobe 3 cases(10.7%) and parietal lobe 3 cases(10.7%) and occipital lobe 1 case(3.6%) and cerebellum 1 case(3.6%). The pattern of abnormalities in MR perfusion study were focal type in 18 cases(42.8%), diffuse type 18 cases(42.8%), mixed type 4 cases(9.5%). MR perfusion findings showed statistically significant correlation with initial Glasgow Coma Scale score and Glasgow Outcome Scale score(p<0.05). CONCLUSION: The patterns of perfusion MR abnormality show significant correlation with the prognosis. Further study is mandatory to define the meaning of perfusion defect area and clinical significance.

Coincidental Arteriovenous Malformation with Pituitary Tumor

Coincidental Arteriovenous malformation with pituitary tumor is very rare. Only two cases previously have been published in the world literature. A 63-year-old man was suffered from sudden loss of vision, vomiting and gait disturbance. Initial magnetic resonance image and cerebral angiography revealed a mass contained hemorrhage on pituitary fossa and arteriovenous malformation on the left frontal lobe. The tumor removed partially via transsphenoidal approach, and then embolization was performed for the arteriovenous malformation. Histological diagnosis of the mass was pituitary adenoma.

Coincidental Arteriovenous Malformation with Pituitary Tumor

Coincidental Arteriovenous malformation with pituitary tumor is very rare. Only two cases previously have been published in the world literature. A 63-year-old man was suffered from sudden loss of vision, vomiting and gait disturbance. Initial magnetic resonance image and cerebral angiography revealed a mass contained hemorrhage on pituitary fossa and arteriovenous malformation on the left frontal lobe. The tumor removed partially via transsphenoidal approach, and then embolization was performed for the arteriovenous malformation. Histological diagnosis of the mass was pituitary adenoma.