Abstract:
OBJECTIVE:As stents for treating intracranial atherosclerotic stenosis may develop in-stent re-stenosis (ISR) in up to 30%, follow-up imaging is mandatory. Residual stenosis (RS) is not rare. We evaluated an optimised Flat Detector CT protocol with intravenous contrast material application (i.v. FD-CTA) for non-invasive follow-up. METHODS:In 12 patients with intracranial stents, follow-up imaging was performed using i.v. FD-CTA. MPR, subtracted MIP and VRT reconstructions were used to correlate to intra-arterial angiography (DSA). Two neuroradiologists evaluated the images in anonymous consensus reading and calculated the ISR or RS. Correlation coefficients and a Wilcoxon test were used for statistical analysis. RESULTS:In 4 patients, no stenosis was detected. In 6 patients RS and in two cases ISR by intima hyperplasia perfectly visible on MPR reconstructions of i.v. FD-CTA were detected. Wilcoxon's test showed no significant differences between the methods (p > 0.05). We found a high correlation with coefficients of the pairs DSA/ FD-CT MIP r = 0.91, DSA/ FD-CT MPR r = 0.82 and FD-CT MIP/ FD-CT MPR r = 0.8. CONCLUSION:Intravenous FD-CTA could clearly visualise the stent and the lumen, allowing ISR or RS to be recognised. FD-CTA provides a non-invasive depiction of intracranial stents and might replace DSA for non-invasive follow-up imaging.
journal_name
Eur Radioljournal_title
European radiologyauthors
Struffert T,Kloska S,Engelhorn T,Deuerling-Zheng Y,Ott S,Doelken M,Saake M,Köhrmann M,Doerfler Adoi
10.1007/s00330-010-1931-3subject
Has Abstractpub_date
2011-02-01 00:00:00pages
411-8issue
2eissn
0938-7994issn
1432-1084journal_volume
21pub_type
杂志文章abstract:OBJECTIVE:To investigate the incidence rate, time-to-onset and recovery, MRI morphology and occurrence of insufficiency fractures in radiation-induced changes in the sacrum following pelvic radiotherapy. MATERIAL AND METHODS:410 patients with pelvic malignancies treated with radiotherapy were reviewed. Follow-up was 1...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5325-2
更新日期:2018-08-01 00:00:00
abstract:PURPOSE:To analyse the accuracy of dual-energy contrast-enhanced spectral mammography in dense breasts in comparison with contrast-enhanced subtracted mammography (CESM) and conventional mammography (Mx). MATERIALS AND METHODS:CESM cases of dense breasts with histological proof were evaluated in the present study. Fou...
journal_title:European radiology
pub_type: 杂志文章
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更新日期:2014-10-01 00:00:00
abstract::We reviewed imaging findings of CT and MR imaging in 20 cases of surgically confirmed craniopharyngioma in an attempt to determine their relation to patterns of tumor extent. The relationship between these patterns and the frequency of preoperative CT diagnosis and MR imaging diagnosis according to the surgical diagno...
journal_title:European radiology
pub_type: 杂志文章
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更新日期:1997-01-01 00:00:00
abstract:OBJECTIVE:To assess diagnostic reference levels (DRLs) in surgery for the most frequent procedures as required by the European Directive 2013/59/Euratom. METHODS:A survey was conducted in six centers. Eight orthopedic, urology and gastrointestinal surgical procedures were analyzed. Kerma area product (KAP) and fluoros...
journal_title:European radiology
pub_type: 杂志文章,多中心研究
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journal_title:European radiology
pub_type: 杂志文章,评审
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更新日期:2007-12-01 00:00:00
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更新日期:2004-07-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2010-08-01 00:00:00
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pub_type: 杂志文章,实务指引
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更新日期:2013-03-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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journal_title:European radiology
pub_type: 临床试验,杂志文章,随机对照试验
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pub_type: 杂志文章,评审
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更新日期:2019-08-01 00:00:00
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journal_title:European radiology
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更新日期:2013-06-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
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更新日期:2013-11-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
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更新日期:1998-01-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
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更新日期:2013-03-01 00:00:00