PURPOSE: To evaluate the middle cerebral artery (MCA) on CT, including its relationship to cerebral infarction. METHODS: Thirteen patients with either a unilateral or bilateral hyperdense M1 segment of the MCA were evaluated. History of hypertension, diabetes, and hematocrit were obtained and compared with a control group of patients without a hyperdense MCA. RESULTS: None of the patients had a unilateral hyperdense MCA ipsilateral to a clinically identifiable stroke. Patients with a hyperdense MCA had a statistically higher hematocrit and also a higher prevalence of hypertension and diabetes mellitus than patients without a hyperdense MCA. The higher hematocrit may have increased the density of the blood, while both diabetes and hypertension are associated with calcification within blood vessel walls. CONCLUSION: A hyperdense MCA is not a reliable indicator of occlusion of this vessel or subsequent infarction.
PURPOSE: To evaluate the middle cerebral artery (MCA) on CT, including its relationship to cerebral infarction. METHODS: Thirteen patients with either a unilateral or bilateral hyperdense M1 segment of the MCA were evaluated. History of hypertension, diabetes, and hematocrit were obtained and compared with a control group of patients without a hyperdense MCA. RESULTS: None of the patients had a unilateral hyperdense MCA ipsilateral to a clinically identifiable stroke. Patients with a hyperdense MCA had a statistically higher hematocrit and also a higher prevalence of hypertension and diabetes mellitus than patients without a hyperdense MCA. The higher hematocrit may have increased the density of the blood, while both diabetes and hypertension are associated with calcification within blood vessel walls. CONCLUSION: A hyperdense MCA is not a reliable indicator of occlusion of this vessel or subsequent infarction.
Authors: A E Grams; M Knoflach; R Rehwald; J Willeit; M Sojer; E R Gizewski; B Glodny Journal: AJNR Am J Neuroradiol Date: 2015-05-21 Impact factor: 3.825
Authors: J M Niesten; I C van der Schaaf; G J Biessels; A E van Otterloo; T van Seeters; A D Horsch; M J A Luitse; Y van der Graaf; L J Kappelle; W P T M Mali; B K Velthuis Journal: Neuroradiology Date: 2013-06-21 Impact factor: 2.804