scholarly journals Four-dimensional CT angiography (4D-CTA) in the evaluation of juvenile nasopharyngeal angiofibromas: comparison with digital subtraction angiography (DSA) and surgical findings

2017 ◽  
Vol 46 (8) ◽  
pp. 20170171 ◽  
Author(s):  
Zebin Xiao ◽  
Yingyan Zheng ◽  
Jian Li ◽  
Dehua Chen ◽  
Fang Liu ◽  
...  
Author(s):  
Hesham Ebrahim Ahmed Al-rudaini ◽  
Ping Han ◽  
Huimin Liang

Background:CT Angiography (CTA) of aortoiliac and lower extremity arteries is a relatively recent innovation of CT imaging that has changed after the introduction of multi-detector row scanners.Objective:The study aimed to evaluate the diagnostic accuracy of Multidetector Computed Tomographic Angiography (MDCTA) in the assessment of arterial tree in patients with Peripheral Arterial Occlusive Disease (PAOD), as compared to Digital Subtraction Angiography (DSA).Methods:A single-center nonrandomized prospective study was conducted on 50 patients complaining of peripheral arterial disease (chronic stage) from February 2017 to October 2017. All the patients were exposed to DSA and CTA prior to definitive treatment. The images were then analyzed using maximum intensity projection, volume-rendered, and curved multiplane reformation techniques.Results:All the patients involved in this study were susceptible according to their clinical presentation. The statistical analysis exposed a highly significant difference between CTA and DSA in the assessment of stenosis at the level of Femoropopliteal segment (P<0.01), while for infrapopliteal segment, there was no statistically significant difference between CTA and DSA having 8% versus 14% insignificant stenosis and 62% versus 47% significant stenosis in CTA and DSA, respectively. The overall accuracy of CT angiography in the femoropopliteal segments was 95.20% while in the infrapopliteal segment it was 94.5%.Conclusion:Multidetector CT angiography was found to be a reliable alternative mean for pathoanatomical description of the arterial lesions in critical lower limb ischemia and its subsequent management in comparison to digital subtraction angiography.


Radiology ◽  
2005 ◽  
Vol 236 (3) ◽  
pp. 1083-1093 ◽  
Author(s):  
Jürgen K. Willmann ◽  
Bernhard Baumert ◽  
Thomas Schertler ◽  
Simon Wildermuth ◽  
Thomas Pfammatter ◽  
...  

2021 ◽  
Vol 200 ◽  
pp. 106399
Author(s):  
Su Jin Lee ◽  
Belinda Liu ◽  
Neil Rane ◽  
Peter Mitchell ◽  
Richard Dowling ◽  
...  

2013 ◽  
Vol 35 (6) ◽  
pp. 517-522 ◽  
Author(s):  
Tiago Bilhim ◽  
José A. Pereira ◽  
Hugo Rio Tinto ◽  
Lúcia Fernandes ◽  
Marisa Duarte ◽  
...  

Author(s):  
Helen Wong ◽  
Luke Hodgson ◽  
Jillian Banfield ◽  
Jai J. S. Shankar

AbstractBackgroundIn patients with subarachnoid haemorrhage (SAH) and a negative finding on CT angiography (CTA), further imaging with digital subtraction angiography (DSA) is commonly performed to identify the source of bleeding. The purpose of this study was to investigate whether negative findings on CTA can reliably exclude aneurysms in patients with acute SAH.MethodsThis retrospective study identified all DSAs performed between August 2010 and July 2014 within our institution. CT angiography was performed with a 64-section multidetector row CT scanner. Only DSAs from patients with confirmed SAH and a negative CTA result were included in the final analyses. A fellowship-trained neuroradiologist reviewed the imaging results.ResultsOf the 857 DSAs, 50 (5.83%) were performed in 35 patients with CTA-negative SAH. Of the 35 patients, three (8.57%) had positive findings on the DSA. In one patient, suspicious dissection of the extra- and intra-cranial segment of the right vertebral artery could not be confirmed even in retrospect. In the second patient, the suspicious finding of tiny protuberance from the left paraclinoid internal carotid artery (ICA) on DSA did not change on follow-up and did not change patient’s management. The third patient had a posterior inferior cerebellar artery aneurysm, which was not seen on the initial CTA owing to the incomplete coverage of the head on the CTA.ConclusionIn patients with SAH, negative findings on a technically sound CTA are reliable in ruling out aneurysms in any pattern of SAH or no blood on CT. Our observations need to be confirmed with larger prospective studies.


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