CT in vascular pathologies

被引:27
作者
Bartolozzi, C [1 ]
Neri, E [1 ]
Caramella, D [1 ]
机构
[1] Univ Pisa, Diagnost & Intervent Radiol Dept Oncol, I-56100 Pisa, Italy
关键词
CT angiography; aorta; CT 3D reconstructions;
D O I
10.1007/s003300050459
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Since the introduction of helical scanners, CT angiography (CTA) has achieved an essential role in many vascular applications that were previously managed with conventional angiography. The performance of CTA is based on the accurate selection of collimation width, pitch, reconstruction spacing and scan delay, which must be modulated on the basis of the clinical issue. However, the major improvement of CT has been provided by the recent implementation of many post-processing techniques. such as multiplanar reformatting, shaded surface display maximum intensity projections, 3D perspectives of surface and volume rendering, which simulate virtual intravascular endoscopy. The integration of the potentialities of the scanner and of the image process ing techniques permitted improvement of: (a)the evaluation of aneurysms, dissection and vascular anomalies involving the thoracic aorta; (b) carotid artery stenosis; (c)aneurysms of abdominal aorta; (d) renal artery stenosis; (e) follow-up of renal artery stenting; and (f) acute or chronic pulmonary embolism. Our experience has shown that the assessment of arterial pathologies with CTA requires the integration of 3D post-processing techniques in most applications.
引用
收藏
页码:679 / 684
页数:6
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