Objective:To study the application value of rotation digital subtraction angiography(DSA)in the diagnosis of intracerebral aneurysms.Methods:Thirty-five patients with suspected intracerebral aneurysms underwent routine anteroposterior and lateral position angiography and rotation DSA with a Shimadzu 1 250 mA CCD DSA C arms X-ray system

and the demonstration rate of intracerebral aneurysms were compared.Results:Of the 35 patients

32 were detected with intracerebral aneurysms by rotation DSA

with clear demonstation of the neck of aneurysms and the relationship between aneurysm-bearing artery and peripheral vessels;while only 27 patients were detected by routine DSA

and the relationship between aneurysm-bearing artery and peripheral vessels of 9 patients and the neck of aneurysms of 6 patients did not demonstrate clearly.Conclusion:Rotation DSA is of high clinical value

which can demonstrate clearly the body

neck of aneurysms and the relationship between aneurysm-bearing artery and peripheral vessels.