Abstract:
INTRODUCTION:Cerebral CT angiography (CTA) is an established method applied to both the detection and treatment planning of intracranial aneurysms. The aim of our study was to compare CTA and digital subtraction angiography (DSA) findings with the surgical results mainly in patients with acute SAH and to evaluate the clinical usefulness of CTA. MATERIALS AND METHODS:During the last 2 years, 82 consecutive patients were admitted under clinical symptoms and signs suggestive of harboring an intracranial aneurysm. CT angiography performed immediately afterwards the plain CT, while DSA was performed within the first 48 h of admission. All aneurysms detected were confirmed during surgery or endovascular embolization. Repeat DSA was performed in all patients having both the initial CTA and the DSA 15 days after the onset of symptoms negative. CT angiograms and conventional angiographies were studied by a consensus of two radiologists for each technique, who performed aneurysm detection, morphological features characterization and evaluation of the technique. RESULTS:Surgical or/and endovascular treatment was performed in 45 patients and 53 aneurysms were confirmed. Using 3D-CT angiography, we detected 47 aneurysms in 42 patients. Conventional angiography depicted 43 aneurysms in 39 patients. The sensitivity of CTA for the detection of all aneurysms versus surgery was 88.7%, the specificity 100%, the positive predictive value (PPV) 100%, the negative predictive value (NPV) 80.7% and the accuracy 92.3%. Accordingly, the sensitivity of DSA was 87.8%, the specificity 98%, the PPV 97.7%, the NPV 89.1% and the accuracy 92.9%. Considering aneurysms > or =3 mm, CTA showed a sensitivity ranging from 93.3 to 100%, equal to that of DSA. CONCLUSION:Cerebral CT angiography has an equal sensitivity to DSA in the detection of intracranial aneurysms >3 mm. It has also 100% detection rate in AcoA and MCA bifurcation aneurysms, while some locations, like posterior communicating artery aneurysms, remain problematic. The delineating features of each aneurysm are better depicted with CTA due to 3D visualization. The use of digital subtraction angiography as a diagnostic tool can be limited in equivocal cases.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Karamessini MT,Kagadis GC,Petsas T,Karnabatidis D,Konstantinou D,Sakellaropoulos GC,Nikiforidis GC,Siablis Ddoi
10.1016/S0720-048X(03)00173-6keywords:
subject
Has Abstractpub_date
2004-03-01 00:00:00pages
212-23issue
3eissn
0720-048Xissn
1872-7727pii
S0720048X03001736journal_volume
49pub_type
临床试验,杂志文章abstract:OBJECTIVES:This study aims to evaluate the radiation exposure to patients undergoing an abdominopelvic or a chest and abdominopelvic (trunk) CT examination and to assess compliance to imaging referral guidelines. METHODS:To this end, 357 standard abdominopelvic and trunk CT scans were collected from 8 Belgian institut...
journal_title:European journal of radiology
pub_type: 杂志文章,多中心研究
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.02.018
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journal_title:European journal of radiology
pub_type: 杂志文章
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journal_title:European journal of radiology
pub_type: 杂志文章
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1986-02-01 00:00:00
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journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 临床试验,杂志文章
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2011-12-01 00:00:00
abstract:INTRODUCTION:To describe serial changes in irradiated superior cervical sympathetic ganglia (SCSGs) on MRI (magnetic resonance imaging) evaluation in patients with head and neck squamous cell carcinoma (HNSCC) and to find the features differentiating them from the metastatic retropharyngeal lymph nodes. MATERIALS AND ...
journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2018-01-01 00:00:00
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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更新日期:2012-04-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2007-04-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2014-05-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2011.10.016
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journal_title:European journal of radiology
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pub_type: 杂志文章,评审
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:
更新日期:1986-05-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:1993-04-01 00:00:00
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journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/s0720-048x(01)00311-4
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journal_title:European journal of radiology
pub_type: 杂志文章
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journal_title:European journal of radiology
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