| Objective: To study and compare the diagnostic value of cranial computed tomography angiography (CTA) and cranial magnetic resonance angiography (MRA) in intracranial aneurysms. Methods: Data of 60 patients with suspected intracranial aneurysms who were admitted to our hospital from January 2, 2019 to December 15, 2020 were retrospectively analyzed. CTA examination, MRA examination and digital subtraction angiography (DSA) examination were performed on all subjects. Using the results of DSA as the gold standard, the efficacy of cranial CTA and cranial MRA in the diagnosis of intracranial aneurysms were compared. In addition, the coincidence rate of cranial CTA and cranial MRA in different grades and different locations of intracranial aneurysms were compared. Results: DAS examination results showed 48 patients with confirmed aneurysm, a total of 74 aneurysms were detected, 65 aneurysms were detected by CTA, and 51 aneurysms were detected by MRA, and the detection rate of CTA aneurysms was higher than that of MRA (all P＜0.05). Taking DSA results as the gold standard, the sensitivity, specificity and accuracy of CTA in the diagnosis of intracranial aneurysms were 94.20% (65/69), 60.00% (3/5) and 91.89% (68/74), respectively, which were higher than 82.26% (51/62), 41.67% (5/12), 75.68% (56/74) in MRA (all P＜0.05). The coincidence rate of CTA in diagnosis of grade 1 intracranial aneurysm was 13.85% (9/65), which was higher than 7.84% (4/51) of MRA (P＜0.05). There was no significant difference in the coincidence rate of different examination methods in the diagnosis of intracranial aneurysm in different locations (all P＞0.05). Conclusion: The sensitivity, specificity and accuracy of CTA in the diagnosis of intracranial aneurysms are higher than those of MRA, and can improve the detection rate of small diameter tumors. However, MRA has the advantages of no radiation, low test cost and high safety, so a reasonable examination method can be comprehensively selected in clinical practice. |
