Abstract:
PURPOSE:Multi-slice CT (MSCT) has great potential in evaluation of vascular structures. Our purpose was to investigate if there is any difference in detection of superiorly, inferiorly and horizontally directed small cerebral aneurysms (<5 mm) on MSCTA compared to digital subtraction angiography (DSA) or surgery. MATERIALS AND METHODS:One hundred and three consecutive patients who underwent MSCTA and DSA or surgery were included in the study. MSCTA and DSA results were evaluated independently by two different neuroradiologists who performed aneurysm detection, quantitation, and characterization using 2D multiplanar reconstructions, 3D maximum intensity projection and volume-rendered techniques. FINDINGS:MSCTA detected 49 small cerebral aneurysms (<5 mm) in 37 (36%) of 103 patients. The overall sensitivity, specificity, and accuracy of MSCTA for detecting small aneurysms were 0.85, 0.65, and 0.79, respectively. There was moderate agreement between MSCTA and DSA/surgery for detecting small aneurysms (kappa: 0.51). The sensitivity of detecting small aneurysms directed superiorly, inferiorly and horizontally was 0.94, 0.84, and 0.75, respectively. There was no statistically significant difference in detection between small aneurysms directed superiorly, inferiorly and horizontally on MSCTA (P > 0.05). CONCLUSION:The direction of small cerebral aneurysms is not important in diagnosis on multi-slice CT scanners, although the detection of small cerebral aneurysms with superior or inferior direction is slightly easier than the detection of horizontally directed aneurysms.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Teksam M,McKinney A,Cakir B,Truwit CLdoi
10.1016/j.ejrad.2004.05.002keywords:
subject
Has Abstractpub_date
2005-03-01 00:00:00pages
454-62issue
3eissn
0720-048Xissn
1872-7727pii
S0720-048X(04)00161-5journal_volume
53pub_type
杂志文章abstract:PURPOSE:To describe the initial and follow-up CT features of interstitial lung disease associated with anti-synthetase syndrome (AS-ILD). MATERIALS AND METHODS:Two independent thoracic radiologists retrospectively analysed thin-section CT images obtained at diagnosis of AS-ILD in 33 patients (17 positive for anti-Jo1,...
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
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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,评审
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更新日期:2003-10-01 00:00:00
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pub_type: 临床试验,杂志文章
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更新日期:2004-03-01 00:00:00
abstract::The pulmonary vasculature and its role in perfusion and gas exchange is an important consideration in many conditions of the lung and heart. Currently the mainstay of imaging of the vasculature and perfusion of the lungs lies with CT and nuclear medicine perfusion scans, both of which require ionizing radiation exposu...
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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更新日期:2012-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:1994-08-01 00:00:00