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Comparative Study Of64-slice Spiral Computer Tomography Angiography And3-dimeniton Digital Subtraction Angiography In Diagnosis Of Intracranial Aneurysms

Posted on:2012-04-14Degree:MasterType:Thesis
Country:ChinaCandidate:C S FuFull Text:PDF
GTID:2234330374473336Subject:Medical imaging and nuclear medicine
Abstract/Summary:PDF Full Text Request
Objective: Subaraehnoid hemorrhage is the main cause of aneurysmal Patients’death,italso results in high morbidity and mortality. Early accurate and definite diagnosis ofsuch disease is very important for the therapy. We examined SAH patients byusing computer tomography angiography (CTA) Three-dimension digital subtractionangiography (DSA), reasonability and discuss the practicability as well as appreciate ofintracranial aneurysm through the results compare and analysis. Further guide cliniciansthe rational choice of treatment.Analysis the feature of CTA and3D-DSA imaging,the practica l value of the two methods in diagnosis of aneurysm were discussed.Method: In70patients with clinical manifestations suggestive of harboringintracranial aneurysms who underwent all examinations of routine CTA,3D-DSA.Diagnosis of56cases of intracranial aneurysms detected60aneurysms. Respectively inaneurysm detective rate,the longest diameter and diagnosis of display the clarity ofthe aneurysm neck and its relation to parent artery by comparison.Results:In terms of aneurysm detective rate,no sign ificant statistical difference wasfound between aneurysm detective rates of CTA and3D-DSA;while significantdifference was found between those of CTA and3D-DSA in the detection rate ofaneurysm with the diameter <3mm.According to the analysis of the longest diameterof48aneurysms,there is significant statistical difference between image measurementvalues of CTA and3D-DSA. With regard to display of aneurismal neek and its relationto parent artery,there is significant statistical difference was found between CTA and3D-DSA.Conclusion:①CTA shows no significant difference to3D-DSA in aneurysm detectiverate,while3D-DSA has more advantages in aneurysm detective rate than CTA with thediameter <3mm.②There is difference between image measurement values of3D-DSA and that ofCTA. Image measurement values of CTA is smaller. ③Image display of aneurismal neek of3D-DSA is more advantages than that of CTA.
Keywords/Search Tags:CT angiography, 3D digital subtraction angiography, intracranialaneurysm
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