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Maeda Y, Ikawa F, Kuwabara M, Hosogai M, Ishii D, Morimoto T, Nakayama T, Suzuki M, Horie N. Declining trend in the estimated annual rupture rate of unruptured cerebral aneurysms in Japan: a nationwide study. Neurosurg Rev 2024; 47:336. [PMID: 39014278 DOI: 10.1007/s10143-024-02587-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/24/2024] [Accepted: 07/08/2024] [Indexed: 07/18/2024]
Abstract
The incidence of subarachnoid hemorrhages (SAHs) in Japan has recently decreased. However, trends in the annual rates of unruptured cerebral aneurysms (UCAs) are unclear because calculations based on follow-up periods are limited to patients with ruptured cerebral aneurysms. We aimed to clarify current trends in the estimated annual rupture rates of UCAs in Japan and to identify the most relevant contributing factors. We analyzed data from the Japanese Ministry of Health, Labour and Welfare and records of the Japan Neurosurgical Society. The estimated annual rupture rates of UCAs between 2003 and 2018 were calculated according to age-adjusted mortality rates of SAH and number of treated ruptured cerebral aneurysms (RCAs). We estimated trends in annual rupture rates using sensitivity analysis and assessed associations between estimated annual rupture rates and the prevalences of hypertension and current smoking. The estimated annual rupture rate of UCAs significantly decreased from 1.44 to 0.87% and from 0.92 to 0.76%, respectively, in terms of age-adjusted mortality rates of SAH and number of treated RCAs (p < 0.001). The range of changes in estimated annual rupture rates of UCAs was - 1.13%‒0.83%, representing a declining UCA trend of 88%. The estimated annual rupture rates of UCAs declined by 0.02-0.10% and 0.01-0.05% with every percent decrease in hypertension and current smoking prevalence, respectively. The estimated annual rupture rate of UCAs has recently decreased in Japan, possibly due to a decrease in the prevalence of hypertension rather than smoking.
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Affiliation(s)
- Yuyo Maeda
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Fusao Ikawa
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Masashi Kuwabara
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masahiro Hosogai
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Daizo Ishii
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takeshi Morimoto
- Department of Clinical Epidemiology, Hyogo Medical University, Nishinomiya, Japan
| | - Takeo Nakayama
- School of Public Health, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Nobutaka Horie
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Suh PS, Jung SC, Moon HH, Roh YH, Song Y, Kim M, Lee J, Choi KM. Diagnosis of Unruptured Intracranial Aneurysms Using Proton-Density Magnetic Resonance Angiography: A Comparison With High-Resolution Time-of-Flight Magnetic Resonance Angiography. Korean J Radiol 2024; 25:575-588. [PMID: 38807339 PMCID: PMC11136948 DOI: 10.3348/kjr.2023.1241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/08/2024] [Accepted: 04/03/2024] [Indexed: 05/30/2024] Open
Abstract
OBJECTIVE Differentiating intracranial aneurysms from normal variants using CT angiography (CTA) or MR angiography (MRA) poses significant challenges. This study aimed to evaluate the efficacy of proton-density MRA (PD-MRA) compared to high-resolution time-of-flight MRA (HR-MRA) in diagnosing aneurysms among patients with indeterminate findings on conventional CTA or MRA. MATERIALS AND METHODS In this retrospective analysis, we included patients who underwent both PD-MRA and HR-MRA from August 2020 to July 2022 to assess lesions deemed indeterminate on prior conventional CTA or MRA examinations. Three experienced neuroradiologists independently reviewed the lesions using HR-MRA and PD-MRA with reconstructed voxel sizes of 0.253 mm3 or 0.23 mm3, respectively. A neurointerventionist established the gold standard with digital subtraction angiography. We compared the performance of HR-MRA, PD-MRA (0.253-mm3 voxel), and PD-MRA (0.23-mm3 voxel) in diagnosing aneurysms, both per lesion and per patient. The Fleiss kappa statistic was used to calculate inter-reader agreement. RESULTS The study involved 109 patients (average age 57.4 ± 11.0 years; male:female ratio, 11:98) with 141 indeterminate lesions. Of these, 78 lesions (55.3%) in 69 patients were confirmed as aneurysms by the reference standard. PD-MRA (0.253-mm3 voxel) exhibited significantly higher per-lesion diagnostic performance compared to HR-MRA across all three readers: sensitivity ranged from 87.2%-91.0% versus 66.7%-70.5%; specificity from 93.7%-96.8% versus 58.7%-68.3%; and accuracy from 90.8%-92.9% versus 63.8%-69.5% (P ≤ 0.003). Furthermore, PD-MRA (0.253-mm3 voxel) demonstrated significantly superior per-patient specificity and accuracy compared to HR-MRA across all evaluators (P ≤ 0.013). The diagnostic accuracy of PD-MRA (0.23-mm3 voxel) surpassed that of HR-MRA and was comparable to PD-MRA (0.253-mm3 voxel). The kappa values for inter-reader agreements were significantly higher in PD-MRA (0.820-0.938) than in HR-MRA (0.447-0.510). CONCLUSION PD-MRA outperformed HR-MRA in diagnostic accuracy and demonstrated almost perfect inter-reader consistency in identifying intracranial aneurysms among patients with lesions initially indeterminate on CTA or MRA.
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Affiliation(s)
- Pae Sun Suh
- Department of Radiology, Research Institute of Radiological Science and Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Chai Jung
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
| | - Hye Hyeon Moon
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Yun Hwa Roh
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yunsun Song
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Minjae Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Jungbok Lee
- Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Keum Mi Choi
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
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Laukka D, Kivelev J, Rahi M, Vahlberg T, Paturi J, Rinne J, Hirvonen J. Detection Rates and Trends of Asymptomatic Unruptured Intracranial Aneurysms From 2005 to 2019. Neurosurgery 2024; 94:297-306. [PMID: 37695560 PMCID: PMC10766300 DOI: 10.1227/neu.0000000000002664] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/09/2023] [Indexed: 09/12/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The trend in detection rates of asymptomatic unruptured intracranial aneurysms (UIAs) on brain computed tomography angiography/magnetic resonance angiography (CTA/MRA) is not well established. Our objective was to evaluate time trends in asymptomatic UIA detection rates on brain CTA/MRA between 2005 and 2019. METHODS We conducted a retrospective study of all brain computed tomography/magnetic resonance scans (n = 288 336 scans in 130 621 patients) performed between January 2005 and December 2019 at a tertiary referral hospital. Patients who underwent brain CTA/MRA examinations were included (n = 81 261 scans in 48 037 patients). The annual detection rate of new UIA cases was calculated based on the first brain CTA/MRA imaging. Detection rates were compared between three periods and across different age groups. RESULTS The number of first CTA/MRA examinations increased significantly from 2005 to 2009 (n = 12 190 patients) to 2010-2014 (n = 14 969 patients) and 2015-2019 (n = 20 878 patients) ( P < .001). The UIA detection rate also increased significantly from 1.7% in 2005-2009 to 2.5% in 2010-2014 and 3.4% in 2015-2019 ( P < .001). The UIA detection rate increased significantly from 2010-2014 to 2015-2019 (relative risk [RR], 1.33; 95% CI, 1.17-1.51), particularly in patients aged 60-69 years (RR, 1.29; 95% CI, 1.01-1.63), 70-79 years (RR, 1.71; 95% CI, 1.30-2.25), and >79 years (RR, 2.33; 95% CI, 1.56-3.47). Furthermore, the detection rate of <5-mm UIAs increased from 2010-2014 to 2015-2019 (RR, 1.51; 95% CI, 1.28-1.77). CONCLUSION The detection rate of asymptomatic UIAs, particularly in elderly patients, has increased significantly over the past 15 years, coinciding with the increased use of CTA/MRA imaging. Furthermore, the size of the identified UIAs has decreased. These findings raise concerns about the management strategies for UIAs, indicating the need for further research.
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Affiliation(s)
- Dan Laukka
- Department of Neurosurgery, Neurocenter, Turku University Hospital, Turku, Finland
- Clinical Neurosciences, University of Turku, Turku, Finland
| | - Juri Kivelev
- Department of Neurosurgery, Neurocenter, Turku University Hospital, Turku, Finland
- Clinical Neurosciences, University of Turku, Turku, Finland
| | - Melissa Rahi
- Department of Neurosurgery, Neurocenter, Turku University Hospital, Turku, Finland
- Clinical Neurosciences, University of Turku, Turku, Finland
| | - Tero Vahlberg
- Department of Clinical Medicine, Biostatistics, University of Turku, Turku, Finland
- Department of Biostatistics, University of Turku and Turku University Hospital, Turku, Finland
| | - Jooa Paturi
- Department of Neurosurgery, Neurocenter, Turku University Hospital, Turku, Finland
- Clinical Neurosciences, University of Turku, Turku, Finland
| | - Jaakko Rinne
- Department of Neurosurgery, Neurocenter, Turku University Hospital, Turku, Finland
- Clinical Neurosciences, University of Turku, Turku, Finland
| | - Jussi Hirvonen
- Department of Radiology, Turku University Hospital and University of Turku, Turku, Finland
- Department of Radiology, University of Tampere, Tampere, Finland
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Prevalence and risk factors of unruptured intracranial saccular aneurysms in hospital population by 3D-TOF-MRA with VR reconstruction. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2022. [DOI: 10.1016/j.jrras.2022.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Park HY, Suh CH, Shim WH, Heo H, Kim WS, Lim JS, Lee JH, Kim HS, Kim SJ. Diagnostic yield of TOF-MRA for detecting incidental vascular lesions in patients with cognitive impairment: An observational cohort study. Front Neurol 2022; 13:958037. [PMID: 36090850 PMCID: PMC9453548 DOI: 10.3389/fneur.2022.958037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/02/2022] [Indexed: 11/23/2022] Open
Abstract
Objectives The role of three-dimensional (3D) TOF-MRA in patients with cognitive impairment is not well established. We evaluated the diagnostic yield of 3D TOF-MRA for detecting incidental extra- or intracranial artery stenosis and intracranial aneurysm in this patient group. Methods This retrospective study included patients with cognitive impairment undergoing our brain MRI protocol from January 2013 to February 2020. The diagnostic yield of TOF-MRA for detecting incidental vascular lesions was calculated. Patients with positive TOF-MRA results were reviewed to find whether additional treatment was performed. Logistic regression analysis was conducted to identify the clinical risk factors for positive TOF-MRA findings. Results In total, 1,753 patients (mean age, 70.2 ± 10.6 years; 1,044 women) were included; 199 intracranial aneurysms were detected among 162 patients (9.2%, 162/1,753). A 3D TOF-MRA revealed significant artery stenoses (>50% stenosis) in 162 patients (9.2%, 162/1,753). The overall diagnostic yield of TOF-MRA was 16.8% (294/1,753). Among them, 92 patients (31.3%, 92/294) underwent either medical therapy, endovascular intervention, or surgery. In total, eighty-one patients with stenosis were prescribed with either antiplatelet medications or lipid-lowering agent. In total, fifteen patients (aneurysm: 11 patients, stenosis: 4 patients) were further treated with endovascular intervention or surgery. Thus, the “number needed to scan” was 19 for identifying one patient requiring treatment. Multivariate logistic regression analysis showed that being female (odds ratio [OR] 2.05) and old age (OR 1.04) were the independent risk factors for intracranial aneurysm; being male (OR 1.52), old age (OR 1.06), hypertension (OR 1.78), and ischemic heart disease history (OR 2.65) were the independent risk factors for significant artery stenosis. Conclusions Our study demonstrated the potential benefit of 3D TOF-MRA, given that it showed high diagnostic yield for detecting vascular lesions in patients with cognitive impairment and the considerable number of these lesions required further treatment. A 3D TOF-MRA may be included in the routine MR protocol for the work-up of this patient population, especially in older patients and patients with vascular risk factors.
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Affiliation(s)
- Ho Young Park
- Department of Radiology and Research, Asan Medical Center, Institute of Radiology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Chong Hyun Suh
- Department of Radiology and Research, Asan Medical Center, Institute of Radiology, University of Ulsan College of Medicine, Seoul, South Korea
- *Correspondence: Chong Hyun Suh
| | - Woo Hyun Shim
- Department of Radiology and Research, Asan Medical Center, Institute of Radiology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Hwon Heo
- Department of Radiology and Research, Asan Medical Center, Institute of Radiology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Woo Seok Kim
- Department of Radiology and Research, Asan Medical Center, Institute of Radiology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae-Sung Lim
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae-Hong Lee
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Ho Sung Kim
- Department of Radiology and Research, Asan Medical Center, Institute of Radiology, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sang Joon Kim
- Department of Radiology and Research, Asan Medical Center, Institute of Radiology, University of Ulsan College of Medicine, Seoul, South Korea
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Kim BS. Unruptured Intracranial Aneurysm: Screening, Prevalence and Risk Factors. Neurointervention 2021; 16:201-203. [PMID: 34689458 PMCID: PMC8561037 DOI: 10.5469/neuroint.2021.00451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 10/17/2021] [Indexed: 11/24/2022] Open
Affiliation(s)
- Bum-Soo Kim
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kim JH, Lee KY, Ha SW, Suh SH. Prevalence of Unruptured Intracranial Aneurysms: A Single Center Experience Using 3T Brain MR Angiography. Neurointervention 2021; 16:117-121. [PMID: 33906286 PMCID: PMC8261115 DOI: 10.5469/neuroint.2021.00024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/08/2021] [Indexed: 11/24/2022] Open
Abstract
Purpose The purpose of this study was to evaluate the prevalence and risk factors of unruptured intracranial aneurysms (UIAs), which can help establish guidelines of treatment for asymptomatic Korean adults using 3T magnetic resonance angiography (MRA). Materials and Methods Our Institutional Review Board approved this retrospective study, and informed consent was waived. All patients consisted of healthy individuals who underwent brain MRA using 3T magnetic resonance imaging between January 2011 and December 2012 as part of a routine health examination. Patient data and follow-up results were obtained from medical records. Results A total of 2,118 individuals (mean age=53.9±9.6 years, male:female=1,188:930) who had undergone brain MRA were enrolled in the study. UIAs were found in 80 patients with 105 UIAs (3.77%). Female predominance (55% in UIA vs. 43.47% in non-UIA, P=0.0416) and hypertension were more common in the UIA group (43.75% vs. 28.8%, P=0.004, respectively). The mean size of the aneurysms was 3.10±1.62 mm, and they were all saccular in shape and asymptomatic. The UIAs were most common in the internal carotid artery (59.1%), internal carotid-posterior communicating artery (15.2%), middle cerebral artery (9.5%), anterior communicating artery (8.6%), anterior cerebral artery (4.8%), and vertebral artery (2.9%). Twenty-eight of 80 patients (35%) had multiple aneurysms. The incidence of UIAs increased significantly with age (P=0.014). Conclusion In single center experience, we demonstrated the characteristics and prevalence of UIAs in asymptomatic adults, which may help establish guidelines or therapeutic standards for UIAs.
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Affiliation(s)
- Jae Ho Kim
- Department of Neurosurgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung-Yul Lee
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Woo Ha
- Department of Neurosurgery, Chosun University Hospital, Chosun University College of Medicine, Gwangju, Korea
| | - Sang Hyun Suh
- Department of Radiology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Xiao L, Chu W, Wang H. Color-coded duplex sonography vs. 3.0 Tesla magnetic resonance angiography for detection of intracranial stenosis of the internal carotid artery: A prospective cohort study. Exp Ther Med 2019; 19:473-480. [PMID: 31885696 PMCID: PMC6913323 DOI: 10.3892/etm.2019.8255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 09/26/2019] [Indexed: 11/29/2022] Open
Abstract
Hemodynamic changes may provide important information for clinical decision-making in internal carotid artery (ICA) stenosis. The degree of stenosis is responsible for the hemodynamic changes. For detection of intracranial stenosis, each diagnostic method has its own advantages and disadvantages. The goal of the present study was to compare the sensitivity and accuracy of color-coded duplex sonography with that of magnetic resonance angiography (MRA) for the detection of intracranial stenosis. Patients with 3 vessels and/or left stem coronary artery disease were subjected to transcranial and extracranial color-coded duplex sonography (n=998), MRA (n=998) and invasive catheter angiography (n=939). The degree of stenosis was defined according to the Warfarin-Aspirin Symptomatic Intracranial Disease methodology. A ≥50% reduction in artery diameter was considered as a positive obstructive lesion. The benefits of each imaging method were assessed by clinical decision-making analysis. Color-coded duplex sonography and MRA, had sensitivities of 0.935 and 0.957 and accuracies of 0.92 and 0.974, respectively, when using invasive catheter angiography as a gold standard. The number of false-positive obstructive lesions detected by MRA was significantly higher than that for color-coded duplex sonography (53 vs. 13, P<0.0001). Color-coded duplex sonography was able to detect an obstructive lesion in one single image for ICAs with ≥57% stenosis, while MRA was only capable of detecting an obstructive lesion in one single image for ICAs with ≥80% stenosis. In conclusion, color-coded duplex sonography is a reliable method for the detection of intracranial stenosis in patients with coronary artery disease.
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Affiliation(s)
- Lu Xiao
- Department of Ultrasound, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan 471000, P.R. China
| | - Wen Chu
- Department of Ultrasound, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan 471000, P.R. China
| | - Hua Wang
- Department of Ultrasound, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan 471000, P.R. China
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Kim JH, Suh SH, Chung J, Oh YJ, Ahn SJ, Lee KY. Prevalence and Characteristics of Unruptured Cerebral Aneurysms in Ischemic Stroke Patients. J Stroke 2016; 18:321-327. [PMID: 27488981 PMCID: PMC5066432 DOI: 10.5853/jos.2016.00164] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/18/2016] [Accepted: 05/03/2016] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND AND PURPOSE The prevalence of unruptured cerebral aneurysms (UCAs) in ischemic stroke patients is not clearly defined. This study aimed to measure the prevalence and characteristics of UCAs in patients with acute ischemic stroke (AIS) and to compare our findings with those of the general population. In addition, we investigated the factors associated with cerebral aneurysms in AIS patients. METHODS We retrospectively reviewed the brain magnetic resonance angiography images of 955 patients with AIS and 2,118 controls who had received a brain magnetic resonance angiography as part of a health check-up. We investigated the prevalence, size, location, and risk factors of the subjects in the context of UCAs. RESULTS UCAs were found in 74 patients with AIS (7.7%) and in 79 who received a health check-up (3.7%). The prevalence of UCAs was significantly higher in the AIS group than in the health check-up group (odds ratio 2.17, 95% confidence interval 1.56-3.01). The mean aneurysm diameter was larger in the AIS group than in the health check-up group (3.75 mm vs. 3.02 mm, P=0.009). UCAs were primarily located in the internal carotid artery in both groups, and aneurysms in the middle cerebral artery were particularly common in the AIS group. According to multivariate analysis, hypertension alone was associated with an increased prevalence of UCAs in stroke patients. CONCLUSIONS This study identified a higher prevalence and larger size of UCAs in AIS patients than in the general population. Hypertension was an independent risk factor of UCA in AIS.
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Affiliation(s)
- Ji Hwa Kim
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hyun Suh
- Department of Radiology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Joonho Chung
- cDepartment of Neurosurgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yeo-Jin Oh
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Jun Ahn
- Department of Radiology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung-Yul Lee
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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de Havenon A, Chung L, Park M, Mossa-Basha M. Intracranial vessel wall MRI: a review of current indications and future applications. ACTA ACUST UNITED AC 2016. [DOI: 10.1186/s40809-016-0021-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kang HG, Kim BJ, Lee J, Kim MJ, Kang DW, Kim JS, Kwon SU. Risk Factors Associated With the Presence of Unruptured Intracranial Aneurysms. Stroke 2015; 46:3093-8. [PMID: 26451026 DOI: 10.1161/strokeaha.115.011351] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 09/09/2015] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND PURPOSE With the increased investigation of cerebral arteries using magnetic resonance angiography in the general population, the detection of unruptured intracranial aneurysms (UIAs) has increased. Understanding the distribution and factors associated with UIAs might be helpful for understanding the pathomechanism. METHODS Subjects who underwent magnetic resonance angiography with a health examination at the Health Screening and Promotion Center were enrolled. The incidence and risk factors of UIAs (age, sex, hypertension, diabetes mellitus, smoking, alcohol, and coronary artery disease) were investigated by comparing patients with and without UIAs. These risk factors were also investigated by the UIA location, distal internal carotid artery, anterior cerebral artery and middle cerebral artery (MCA), MCA bifurcation, anterior and posterior communicating artery, and posterior circulation. RESULTS Among 187 166 subjects who received health examination, 18 954 underwent magnetic resonance angiography. Of them, 367 (1.93%) had UIAs. Age (odds ratio [OR], 1.02; P=0.003), women (OR, 2.00; P<0.001), hypertension (OR, 2.21; P<0.001), smoking (OR, 1.66; P=0.001), and coronary artery disease (OR, 0.23; P<0.001) were independently associated with the presence of UIAs. Hypertension was associated with most UIAs, except for those located at sidewalls (anterior cerebral artery and MCA). MCA aneurysms were associated with old age and smoking. Distal internal carotid artery, posterior communicating artery, and MCA-bifurcation aneurysms were associated with female sex. Anterior communicating artery aneurysms were associated with smoking and alcohol. Posterior circulation UIAs were only associated with hypertension. Coronary artery disease was negatively associated with anterior circulation aneurysms. CONCLUSIONS The risk factors for UIAs differ by their location, compared with the control. Interestingly, the presence of coronary artery disease was protective against the presence of UIAs.
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Affiliation(s)
- Hyun Goo Kang
- From the Department of Neurology, Chosun University Hospital, Gwangju, South Korea (H.G.K.); Departments of Neurology (B.J.K., D.-W.K., J.S.K., S.U.K.) and Health Screening and Promotion Center (M.-J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; and Clinical Research Center, Asan Institutes of Life and Science, Seoul, South Korea (J.L.)
| | - Bum Joon Kim
- From the Department of Neurology, Chosun University Hospital, Gwangju, South Korea (H.G.K.); Departments of Neurology (B.J.K., D.-W.K., J.S.K., S.U.K.) and Health Screening and Promotion Center (M.-J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; and Clinical Research Center, Asan Institutes of Life and Science, Seoul, South Korea (J.L.)
| | - Jisung Lee
- From the Department of Neurology, Chosun University Hospital, Gwangju, South Korea (H.G.K.); Departments of Neurology (B.J.K., D.-W.K., J.S.K., S.U.K.) and Health Screening and Promotion Center (M.-J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; and Clinical Research Center, Asan Institutes of Life and Science, Seoul, South Korea (J.L.)
| | - Mi-Jung Kim
- From the Department of Neurology, Chosun University Hospital, Gwangju, South Korea (H.G.K.); Departments of Neurology (B.J.K., D.-W.K., J.S.K., S.U.K.) and Health Screening and Promotion Center (M.-J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; and Clinical Research Center, Asan Institutes of Life and Science, Seoul, South Korea (J.L.)
| | - Dong-Wha Kang
- From the Department of Neurology, Chosun University Hospital, Gwangju, South Korea (H.G.K.); Departments of Neurology (B.J.K., D.-W.K., J.S.K., S.U.K.) and Health Screening and Promotion Center (M.-J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; and Clinical Research Center, Asan Institutes of Life and Science, Seoul, South Korea (J.L.)
| | - Jong S Kim
- From the Department of Neurology, Chosun University Hospital, Gwangju, South Korea (H.G.K.); Departments of Neurology (B.J.K., D.-W.K., J.S.K., S.U.K.) and Health Screening and Promotion Center (M.-J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; and Clinical Research Center, Asan Institutes of Life and Science, Seoul, South Korea (J.L.)
| | - Sun U Kwon
- From the Department of Neurology, Chosun University Hospital, Gwangju, South Korea (H.G.K.); Departments of Neurology (B.J.K., D.-W.K., J.S.K., S.U.K.) and Health Screening and Promotion Center (M.-J.K.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; and Clinical Research Center, Asan Institutes of Life and Science, Seoul, South Korea (J.L.).
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