Performance changes due to differences in training data for cerebral aneurysm detection in head MR angiography images

The utility of contrast-enhanced MR-angiography for posterior fossa giant cerebral aneurysm management

Neurological Research ◽

10.1080/01616412.1998.11740587 ◽

1998 ◽

Vol 20 (8) ◽

pp. 705-708 ◽

Cited By ~ 6

Author(s):

Erhard Lang ◽

Johann Steffens ◽

Johannes Link ◽

Maxjrnilian Mehdorn

Keyword(s):

Cerebral Aneurysm ◽

Posterior Fossa ◽

Mr Angiography ◽

Contrast Enhanced ◽

Giant Cerebral Aneurysm

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Cerebral Aneurysm Detection and Analysis Challenge 2020 (CADA)

Cerebral Aneurysm Detection - Lecture Notes in Computer Science ◽

10.1007/978-3-030-72862-5_1 ◽

2021 ◽

pp. 3-17 ◽

Cited By ~ 1

Author(s):

Matthias Ivantsits ◽

Leonid Goubergrits ◽

Jan-Martin Kuhnigk ◽

Markus Huellebrand ◽

Jan Brüning ◽

...

Keyword(s):

Cerebral Aneurysm ◽

Aneurysm Detection

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Enriching computed tomography images by projection for robust automated cerebral aneurysm detection and segmentation

10.1109/bibm52615.2021.9669853 ◽

2021 ◽

Author(s):

Rui Ma ◽

Shikui Tu ◽

Peiying Li ◽

Jiafeng Zhou ◽

Bing Zhao ◽

...

Keyword(s):

Computed Tomography ◽

Cerebral Aneurysm ◽

Computed Tomography Images ◽

Aneurysm Detection

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Nonvisualization of a large cerebral aneurysm despite highresolution magnetic resonance angiography

Journal of Neurosurgery ◽

10.3171/jns.1995.82.2.0294 ◽

1995 ◽

Vol 82 (2) ◽

pp. 294-295 ◽

Cited By ~ 10

Author(s):

Alan Turtz ◽

David Allen ◽

Robert Koenigsberg ◽

H. Warren Goldman

Keyword(s):

Magnetic Resonance ◽

High Resolution ◽

Magnetic Resonance Angiography ◽

Cerebral Aneurysm ◽

Mr Angiography ◽

Cerebral Aneurysms ◽

Arterial Aneurysm ◽

Content Type ◽

Fine Print

✓ The use of magnetic resonance (MR) angiography as a safe, accurate, and reliable substitute for invasive cerebral arteriography has been anticipated as refinements in this technique are introduced. We present the case of an unruptured, 11-mm pericallosal arterial aneurysm not visualized on high-resolution MR angiography. Although this case may be atypical, we caution against complete reliance on this test for exclusion of the presence of cerebral aneurysms.

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Detection rates and sites of unruptured intracranial aneurysms according to sex and age: an analysis of MR angiography–based brain examinations of 4070 healthy Japanese adults

Journal of Neurosurgery ◽

10.3171/2017.9.jns171191 ◽

2019 ◽

Vol 130 (2) ◽

pp. 573-578 ◽

Cited By ~ 7

Author(s):

Yohichi Imaizumi ◽

Tohru Mizutani ◽

Katsuyoshi Shimizu ◽

Yosuke Sato ◽

Junichi Taguchi

Keyword(s):

Risk Factors ◽

Intracranial Aneurysms ◽

Mr Angiography ◽

Detection Rate ◽

Smoking History ◽

Maximum Diameter ◽

Detection Rates ◽

Female Sex ◽

Unruptured Intracranial Aneurysms ◽

Aneurysm Detection

OBJECTIVEThe purpose of this study was to evaluate the detection rate and occurrence site according to patient sex and age of unruptured intracranial aneurysms detected through MRI and MR angiography (MRA).METHODSA total of 4070 healthy adults 22 years or older (mean age [± SD] 50.6 ± 11.0 years; 41.9% women) who underwent a brain examination known as “Brain Dock” in the central Tokyo area between April 2014 and March 2015 were checked for unruptured saccular aneurysm using 3-T MRI/MRA. The following types of cases were excluded: 1) protrusions with a maximum diameter < 2 mm at locations other than arterial bifurcations, 2) conical protrusions at arterial bifurcations with a diameter < 3 mm, and 3) cases of suspected aneurysms with unclear imaging of the involved artery. When an aneurysm was definitively diagnosed, the case was included in the aneurysm group. The authors also investigated the relationship between aneurysm occurrence and risk factors (age, sex, smoking history, hypertension, diabetes, and hyperlipidemia).RESULTSOne hundred eighty-eight aneurysms were identified in 176 individuals (detection rate 4.32%), with the detection rate for women being significantly higher (6.2% vs 3.0%, p < 0.001). The average age in the aneurysm group was significantly higher than in the patients in whom aneurysms were not detected (53.0 ± 11.1 vs 50.5 ± 11.0 years). The detection rate tended to increase with age. The detection rates were 3.6% for people in their 30s, 3.5% for those in their 40s, 4.1% for those in their 50s, 6.9% for those in their 60s, and 6.8% for those in their 70s. Excluding persons in their 20s and 80s—age groups in which no aneurysms were discovered—the detection rate in women was higher in all age ranges. Of the individuals with aneurysms, 12 (6.81%) had multiple cerebral aneurysms; no sex difference was observed with respect to the prevalence of multiple aneurysms. Regarding aneurysm size, 2.0–2.9 mm was the most common size range, with 87 occurrences (46.3%), followed by 3.0–3.9 mm (67 [35.6%]) and 4.0–4.9 mm (20 [10.6%]). The largest aneurysm was 13 mm. Regarding location, the internal carotid artery (ICA) was the most common aneurysm site, with 148 (78.7%) occurrences. Within the ICA, C1 was the site of 46 aneurysms (24.5%); C2, 57 (30.3%); and C3, 29 (15.4%). The aneurysm detection rates for C2, C3, and C4 were 2.23%, 1.23%, and 0.64%, respectively, for women and 0.68%, 0.34%, and 0.21%, respectively, for men; ICA aneurysms were significantly more common in women than in men (5.27% vs 2.20%, p < 0.001). Multivariate logistic regression analysis revealed that age (p < 0.001, OR 1.03, 95% CI 1.01–1.04), female sex (p < 0.001, OR 2.28, 95% CI 1.64–3.16), and smoking history (p = 0.011, OR 1.52, 95% CI 1.10–2.11) were significant risk factors for aneurysm occurrenceCONCLUSIONSIn this study, both female sex and older age were independently associated with an increased aneurysm detection rate. Aneurysms were most common in the ICA, and the frequency of aneurysms in ICA sites was markedly higher in women.

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