Usefulness of Screening MRA for the Diagnosis of Cerebral Aneurysm Kim Seunggi1, Choi Joonkoo2, Kim Ghajung2, Go Joongseok3, Chang Kwanghyun4, Yu Sinyoung5 1Department of Radiology, Seonam University Myongji Hospital 55, Hwasu-ro 14beon-gil, Deogyang-gu, Goyang-si, Gyeonggi-do 2Department of Radiological Science, Graduate School of Health Science, Far East University, 76–32, Daehak-gil, Gamgok-myeon, Eumsung-gun, Chungcheongbuk-do 3Department of Radiology, Seoul National University Bundang Hospital, 82, Gumi-ro 173 beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do; 4Department of Diagnostic Image, Samsung Seoul Hospital, 81, Irwon-ro, Gangnam-gu, Seoul 5Department of Radiology, Seoul Sung-sim Hospital, 82, 259 Wansan-ro, Dondaemun-gu, Seoul, Korea Online published on 14 May, 2018. Abstract Brain MRA for the purpose of primarily diagnosing cerebral aneurysm has the advantage that it can observe blood vessels of the brain without using contrast media. Based on 2, 680 people performing the brain MRA examination at health checkup. For MRA examination, SIGNA HDxt 3.0T of GE company is used, and FoV = 220 mm, TE = 2.60 ms, SL = 1.2/no gab, TR = 24 ms, slice number is 208 pieces for all MRA images, using the ToF. We obtained images including willis-circled in the axial direction, the axial source image is reconstructed with MIP, and the axial plan is rotated by 5° in the vertical axis and the transverse axis then it got an MIP image. Statistic was used SPSS Statistics 20. A cerebral aneurysm of 107 out of 2, 680 people examined for MRA in cerebrovascular examination was diagnosed and this result is similar to that when the nation incidence rate of Un-ruptured aneurysm is about 4% per population it shows numerical values. The most common aneurysms were paraclinoid, followed by p-com ICA. Among the diagnosed patients, 39 patients were judged to need immediate treatment, 14 of whom were treated at the hospital and the remaining patients were referred to other hospitals. There were 68 cases with suspected cerebral aneurysm. The source image was not confirmed, or the brain CTA result was normal or the mean of the treatment was not significant. The remaining patients are mostly tiny aneurysms and are usually recommended to follow-up brain CTA or MRA a year later. During examinations for cerebral aneurysm diagnosis, nun-contrast brain MRAare thought to be the best screening method for patients withoutsymptoms. Top Keywords Cerebral aneurysm, brain CTA, brain MRA, TOF, MIP. Top |