Abstract
Cerebrovascular disease is increasing rapidly because of its high morbidity and high mortality, which is a serious threat to human health. For the early diagnosis and treatment of diseases, the CT vascular noise combined with high-resolution magnetic resonance angiography in acute cerebral apoplexy vascular disease is adopted. 150 patients with ischemic stroke were selected, which were admitted to the Department of Radiology, Huizhou Central People’s Hospital, from January 2020 to December 2020. All patients accepted digital subtraction angiography (DSA), magnetic resonance angiography (MRA), and CT angiography (CTA) examination. Results. There were 76 cases of aneurysm in DSA examination, accounting for 46%; 69 cases with pulsating stenosis, accounting for 50.67%; and 5 cases of moyamoya disease, accounting for 3.33%. The number and proportion of cases of the above diseases in MRA examination were (75, 69, 71; 53.33%, 45.67%, 4%), and those in CTA examination were (71, 76, 3, 47.33%, 50.67%, 2%). Relative to the DSA gold standard, the sensitivity, specificity, and false positive rate of MRA were 81.51%, 95.19%, and 2.1, respectively, and those of CTA were 95.78%, 79.17%, and 11.0, respectively. The number of cases and accuracy of detection of cerebral aneurysms by MRA were (75, 96.57%), and those by CTA were (71, 91.2%), which was not statistically considerable, P > 0.05 . For the number of cases and the detection accuracy of cerebrovascular malformations, MRA was (38, 92.68%) and CTA was (37, 90.24%), which was not statistically considerable, P > 0.05 . Conclusion. The detection sensitivity and accuracy of MRA were better than those of CTA, while specific CTA was superior to MRA. The differences between the two detections were substantial ( P < 0.05 ), while the sensitivity and false positive rate were not remarkably different ( P > 0.05 ). Therefore, the combination of the two detections was of great significance to the diagnosis and treatment of stroke and other vascular diseases.
Highlights
Ischemic stroke is a common disease in the clinical work of neurology and an important cause of disability and death in the elderly. erefore, research and exploration of an early diagnosis of ischemic stroke is of great significance
In the diagnosis of cerebral artery stenosis, Digital subtraction angiography (DSA) was set as the gold standard. e sensitivity of Magnetic resonance angiography (MRA) examination was 81.51%, the specificity was 95.19%, and the false positive rate was 2.1%. e sensitivity of CT angiography (CTA) was 95.78%, the specificity was 79.17%, and the false positive rate was 11.0%
CTA was greatly better than MRA, and the specificity of MRA was superior to CTA
Summary
Ischemic stroke is a common disease in the clinical work of neurology and an important cause of disability and death in the elderly. erefore, research and exploration of an early diagnosis of ischemic stroke is of great significance. Ischemic stroke is a common disease in the clinical work of neurology and an important cause of disability and death in the elderly. Erefore, research and exploration of an early diagnosis of ischemic stroke is of great significance. Is work retrospectively analyzed the diagnostic significance of these two detection methods in the preischemic stroke, compared their advantages and disadvantages, and discussed the significance of the combination of the two methods in the diagnosis and treatment of cerebrovascular diseases. Erefore, they help patients avoid DSA [2] pain to a certain extent. Unlike DSA, MRA and spiral CTA are both noninvasive vascular imaging detection techniques, which can reflect the shape and state of the vessel lumen realistically and appreciably. MRA may have background suppression, and CTA requires injection of contrast agents
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