Filters
Results 1 - 10 of 1815
Results 1 - 10 of 1815.
Search took: 0.025 seconds
Sort by: date | relevance |
Sedat, J.; Chau, Y.; Popolo, M.; Gindre, S.; Rami, L.; Orban, J. C., E-mail: jsedat@yahoo.fr2009
AbstractAbstract
[en] Transluminal balloon dilatation for symptomatic vasospasm after subarachnoid hemorrhage is effective, and clinical studies have shown that it achieves long-lasting dilatation of spastic cerebral arteries. Delayed arterial renarrowing has not been reported. Here we report the case of a 58-year-old woman who presented asymptomatic and permanent restenosis after angioplasty for cerebral vasospasm.
Primary Subject
Source
Copyright (c) 2009 Springer Science+Business Media, LLC; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Zeleňák, Kamil; Zeleňáková, Jana; DeRiggo, Július; Kurča, Egon; Boudný, Jaroslav; Poláček, Hubert, E-mail: zelenak@unm.sk2011
AbstractAbstract
[en] Endovascular treatment for a wide-neck anterior communicating artery (AcomA) aneurysm remains technically challenging. Stent-assisted embolization has been proposed as an alternative of treatment of complex aneurysms. The X-configuration double-stent-assisted technique was used to achieve successful coiling of wide-neck AcomA aneurysm. Implanted stent can alter intra-arterial flow. Follow-up angiograms 4 months later showed flow changes due to used X-technique of stents implantation and filling of the anterior cerebral artery from the opposite internal carotid artery.
Primary Subject
Source
Copyright (c) 2011 Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE); Article Copyright (c) 2011 The Author(s); Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Lakshminarayan, Raghuram; Scott, Paul M.; Robinson, Graham J.; Ettles, Duncan F., E-mail: duncan.ettles@hey.nhs.uk2011
AbstractAbstract
[en] Carotid stump syndrome is one of the recognised causes of recurrent ipsilateral cerebrovascular events after occlusion of the internal carotid artery. It is believed that microemboli arising from the stump of the occluded internal carotid artery or the ipsilateral external carotid artery can pass into the middle cerebral artery circulation as a result of patent external carotid–internal carotid anastomotic channels. Different pathophysiologic causes of this syndrome and endovascular options for treatment are discussed.
Primary Subject
Source
Copyright (c) 2011 Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE); Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Various measurements of cerebral ventricles in 50 normal newborn infants were performed, using ultrasonography. In transverse scan using linear array realtime scanner with 3 MHz transducer, the ratio of the distance between the falx and lateral wall of lateral ventricle to the hemispheric width was measured. In coronal scan through the anterior fontanelle using gray scale B-mode scanner with 5 MHz transducer, the ratios of the bifrontal diameter of the lateral ventricles to externally measured biparietal diameter and to head circumference were measured. Width of frontal horn at 5 mm distance from the lateral end of frontal horn was also measured. In addition, the presence of cavum septi pellucidi was investigated in coronal scan. The result are as follows: 1. The lateral ventricle/hemispheric width ratio in transverse scan was 0.31 ± 0.03. 2. Bifrontal diameter of lateral ventricle/biparietal diameter ratio was 0.20 ± 0.02 and bifrontal diameter of lateral ventricle/head circumference ratio was 0.054 ± 0.006. 3. Width of frantal horn was about 1 mm and maximum width was 2 mm. 4. There was no significant difference in ventricular size between male and female, and among different gestation ages. 5. Cavum septi pellucidi was found in 44 neonates (88%) among 50 normal neonates in coronal scan
Primary Subject
Source
17 refs, 4 figs, 3 tabs
Record Type
Journal Article
Journal
Journal of the Korean Radiological Society; ISSN 1738-2637;
; v. 18(2); p. 260-266

Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Background: Superior cerebellar artery (SCA) syndrome shows ipsilateral cerebellar ataxia and Horner's syndrome, contralateral superficial sensory disturbance, as well as nystagmus toward the impaired side, vertigo, and nausea. Occasionally, unilateral lesions may produce bilateral hypogeusia and contralateral hypoacusia. Objective: To report 2 patients with unilateral lower midbrain ischemic lesions of the inferior colliculus level caused by transarterial embolization for tentorial dural arteriovenous fistulas (TDAVFs). Methods: Hospital records for 21 patients with TDAVFs mainly treated by endovascular techniques between 2005 and 2008 were reviewed. Two patients with MRI evidence of unilateral SCA territory infarction were investigated. Results: Of 21 patients, 2 treated transarterially with Onyx-18 (a nonahesive liquid embolic agent) developed infarctions in the territory of SCA. One patient had lateral SCA infarction characterized by ipsilateral gait ataxia, contralateral hemihypoesthesia, with additional ipsilateral ocular motor palsy and bilateral gustatory loss. And the other patient had medial SCA infarction characterized by ipsilateral ataxia contralateral hemihypoesthesia with additional contralateral hypoacusia. Conclusion: SCA infarction can be caused by transarterial injection of Onyx-18 via SCA or the posterior cerebral artery (PCA) for TDAVFs and additionally presented with gustatory loss and deafness, which is generally not a feature of the SCA syndrome.
Primary Subject
Source
S0720-048X(09)00175-2; Available from http://dx.doi.org/10.1016/j.ejrad.2009.03.048; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Aim: To investigate the angle changes of the parent arteries after stent-assisted coil embolization of wide-necked intracranial bifurcation aneurysms. Materials and methods: The adjacent parent arterial angles before and after stent-assisted coil embolization were measured in 38 patients with aneurysms of the anterior communicating artery (ACoAA) and 41 patients with bifurcation aneurysms of the middle cerebral artery (MCABA). Variables were analysed in relation to the angle changes. Results: Vascular angles of the parent arteries significantly increased by 27.8° (±18.5°) immediately after stent-assisted coil embolization in 79 cases (p < 0.001), with 25.7° (±14.8°) in ACoAA and 29.7° (±21.4°) in MCABA, respectively. In 51 (64.6%) cases with follow-up angiography (mean interval 13.5 ± 4.1 months), vascular angles increased by 27.2° (±17.1°) immediately after treatment and further increased by 20.7° (±14.3°) at the last follow-up (all p < 0.001). More acute pre-stent angles of the parent arteries correlated with greater post-stent angle changes (p = 0.006). Younger age tended to be inversely related to post-stent angle changes (p = 0.091). Conclusion: Stent placement during coil embolization induced significant changes in the aneurysm–parent artery relationship. Further study is needed to elicit the association between angle change of the parent arteries and aneurysmal stability after coil embolization
Primary Subject
Source
S0009-9260(13)00482-0; Available from http://dx.doi.org/10.1016/j.crad.2013.08.021; Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Bang, Seong Ae; Cho, Sang Soo; Yoon, Eun Jin; Park, Hyun Soo; Lee, Eun Ju; Kim, Yu Kyeong; Kim, Sang Sun
Proceedings of the Korean Society Nuclear Medicine Autumn Meeting 20072007
Proceedings of the Korean Society Nuclear Medicine Autumn Meeting 20072007
AbstractAbstract
[en] In this study, we investigated gender differences in age-related declines in regional cerebral glucose metabolism using FDG-PET in a large population sample with a broad age range. 230 healthy subjects (90 male; age: 34-80 y, 140 females; age: 33-82 y) participated. Correlation maps showing age related declines in glucose uptake were created separately for each gender in SPM2. Using population-based probabilistic volume of interests (VOIs), VOIs were defined for the regions showing significant decline with aging. Age related declines were separately assessed within each age range using analysis of covariate in SPSS 13.0. In the total population without gender effect, age-related negative correlation of glucose metabolism was found in the bilateral inferior frontal gyri, bilateral caudate, bilateral thalamus, left insula, left superior frontal gyrus, left uncus, right superior temporal gyrus, right medial frontal gyrus, right parahippocampal gyrus, right anterior cingulate gyrus (P < 0.001 corrected, extent threshold k = 100). 14 VOIs values of brain regions were calculated based on this negative correlation results. The rate of decline across all defined VOIs assessed in the age category of 'more than 70' referenced to the category of '30- 39years' were 7.85% in the entire sample; 7.62% in male and 8.09% in female. Detailed analyses of declines in each age range showed separable patterns of declines across gender. In males, greater decline was observed after the age 60 (20.45%) than the ages of 30 and 50(7.98%). Whereas in females, greater declines were found in age 60s (20.15%) compared to 50s, and in 40(14.84%) compared to 30s. Age-related decline in cerebral glucose metabolism was found in both genders. We further observed that males show a relatively constant pattern of decline across a life span; whereas, females show a pattern of steep changes aging to 60s and to 40s, which may be related to changes in sex hormone levels after menopause
Primary Subject
Source
KSNM, Seoul (Korea, Republic of); [512 p.]; 2007; [2 p.]; 46. Annual Autumn Meeting of the Korean Society Nuclear Medicine; Seoul (Korea, Republic of); 26-27 Oct 2007; Available from KSNM, Seoul (KR)
Record Type
Miscellaneous
Literature Type
Conference
Country of publication
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The optimal management of patients with symptomatic severe ostial vertebral artery stenosis (OVAS) is currently unclear. We analyzed the long-term outcome of consecutive patients with OVAS who received either medical treatment (MT) or vertebral artery stenting (VAS). Thirty-nine (>70%) patients with severe OVAS were followed for a mean period of 2.8 years. The decision for VAS (n=10) or MT (n=29) was left to the clinician. The Kaplan-Meier method was used to assess the risk of recurrent stroke, transient ischemic attack (TIA), or death over the study period. Patients in the VAS group were significantly younger and more likely to have bilateral VA disease (P=0.04 and P=0.02). VAS was successfully performed in all ten patients. The periprocedural risk within 30 days was 10% (one TIA). The overall restenosis rate was 10%. One restenosis occurred after 9 months in a patient treated with bare-metal stent. At 4 years of follow-up, VAS showed a nonsignificant trend toward a lower risk for the combined endpoint of TIA and stroke in posterior circulation compared to medical treatment (10% vs. 45%, P=0.095; relative risk (RR)=0.24, 95% confidence interval (CI) 0.031-1.85). Patients with bilateral VA disease had a significantly lower recurrence risk after VAS compared with medical treatment (0% vs. 91% at 4 years, P=0.004; RR 0.10, 95% CI 0.022-0.49) VAS was performed without permanent complications in this small series of patients with symptomatic severe OVAS. The long-term benefit seems to be confined to patients with bilateral but not to those with unilateral VA disease. (orig.)
Primary Subject
Source
Available from: http://dx.doi.org/10.1007/s00234-010-0662-0
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Original Title
Peut-on re-irradier des malformations arterioveineuses cerebrales non obliterees?
Primary Subject
Source
12. national congress of the French Oncologic Radiotherapy Society; 12. congres national de la societe francaise de radiotherapie oncologique; Paris (France); 22-23 Nov 2001
Record Type
Journal Article
Literature Type
Conference
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Computed tomographic angiography (CTA) has a high sensitivity and specificity for the detection of intracranial aneurysms and is increasingly used as the primary imaging modality in the investigation and pretreatment planning of patients presenting with acute subarachnoid haemorrhage. We present two cases in which CTA failed to demonstrate arteriovenous malformations associated with intracranial aneurysms. (orig.)
Primary Subject
Source
Available from: http://dx.doi.org/10.1007/s00234-005-0038-z
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
1 | 2 | 3 | Next |