Document Detail


Angiographic CT after intravenous contrast agent application: A noninvasive follow-up tool after intracranial angioplasty and stenting.
MedLine Citation:
PMID:  20634309     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND AND PURPOSE: ICAS is one of the therapeutic options in symptomatic cerebral artery stenosis. iaDSA is the current criterion standard examination after ICAS for the detection of ISR. In this study, we evaluated ivACT as a potential noninvasive follow-up alternative.
MATERIALS AND METHODS: In 17 cases, ivACT and iaDSA were performed after ICAS. Both procedures were carried out on a flat-panel-detector-equipped angiography system. Postprocessing of ivACT acquisitions was performed on a dedicated workstation producing multiplanar reformations of the stent region and other intracranial arteries. Restenotic lesions were compared with iaDSA measurements. All studies were independently evaluated by 2 experienced neuroradiologists blinded to patients data.
RESULTS: In 5 cases, ISR was diagnosed on iaDSA images. All restenotic lesions were reliably detected (sensitivity, 100%; 95%CI, 48%-100%) and could be correctly quantified on ivACT images in comparison with iaDSA. The neuroradiologists correctly excluded ISR in 11 of 12 lesions after viewing the ivACT examinations (specificity, 92%; 95%CI, 62%-100%). Measurements of ISR on ivACT were highly correlated to iaDSA (Pearson r = 0.94, P < .01).
CONCLUSIONS: IvACT is a promising noninvasive follow-up examination after ICAS. With its high spatial resolution, it can reliably detect or exclude ISR. Contrary to iaDSA, there is no need for a recovery period after ivACT and the risk of neurologic complications is practically lowered to zero.
Authors:
M-N Psychogios; P Schramm; J-H Buhk; A Xyda; K Gröschel; K Jung; M Knauth
Related Documents :
15493629 - Peripheral magnetic resonance angiography.
22071649 - Lumbar vertebral hemangioma with extradural extension, causing neurogenic claudication:...
8427109 - Mra delineation of the vertebral-basilar system in patients with hemifacial spasm and t...
12954009 - Peripheral mr angiography.
9800249 - Neurovascular applications of ct angiography.
11755729 - Detection of early venous filling in gliomas on mri: preliminary study by 2d time-resol...
23883559 - Usefulness of presto magnetic resonance imaging for the differentiation of schwannoma a...
19350249 - Direct magnetic resonance arthrography of the knee: utility of axial traction.
24105019 - The transpedicular approach for the study of intervertebral disc regeneration strategie...
Publication Detail:
Type:  Journal Article     Date:  2010-07-15
Journal Detail:
Title:  AJNR. American journal of neuroradiology     Volume:  31     ISSN:  1936-959X     ISO Abbreviation:  AJNR Am J Neuroradiol     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003708     Medline TA:  AJNR Am J Neuroradiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1886-91     Citation Subset:  IM    
Affiliation:
Department of Neuroradiology, University Medicine Goettingen, Germany. m.psychogios@med.uni-goettingen.de
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Sonographic differentiation of partially cystic thyroid nodules: a prospective study.
Next Document:  Associations between carotid artery wall thickness and cardiovascular risk factors using multidetect...