Angiographic CT after Intravenous Contrast Agent Application: A Noninvasive Follow-Up Tool after Intracranial Angioplasty and Stenting

Psychogios, Marios; Schramm, Peter; Buhk, Jan‐Hendrik; Xyda, A.; Gröschel, Klaus; Jung, Keechul; Knauth, Michael

doi:10.3174/ajnr.a2168

Cited by 28 publications

(25 citation statements)

References 27 publications

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“…In an animal model, CA-CTA correlated well with the visualization of stents compared to DSA, while conventional MS-CTA failed to visualize the lumen of the stent device (8). In a phantom study and a small case series, Psychogios et al demonstrated that CA-CTA was comparable to DSA in the recognition and quantification of in-stent re-stenosis (9,18). These promising findings in patients were confirmed by others using an optimized image protocol (15).…”

Section: Discussionsupporting

confidence: 63%

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Influence of different reconstruction parameters in the visualization of intracranial stents using C-arm flat panel CT angiography: experience in an animal model

et al. 2015

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Background: C-arm flat panel computed tomography angiography (CA-CTA) is a relatively new imaging modality. Consequently, knowledge about postprocessing parameters and their influence on image quality is still limited, especially for the visualization of implanted microstents. Purpose: To optimize reconstruction parameters by evaluating the influence of these different parameters for CA-CTA visualization of microstents in an animal model. Material and Methods: Eleven microstents were implanted within the left common carotid artery of 11 New Zealand white rabbits. Both CA-CTA, using intra-venous delivery of contrast material, and conventional digital subtraction angiography (DSA) was performed. CA-CTA datasets were reconstructed using three different image characteristics (normal, sharp, smooth). Two experienced neuroradiologists evaluated the image quality and performed measurements of inner and outer stent diameters as well as measurements of the lumen area. Results: Stent deployment was performed successfully in all animals. Inter-observer correlation coefficient for all measurements was high (r ¼ 0.87-0.92). Lumen area and inner stent diameter were significantly smaller

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Section: Discussionsupporting

confidence: 63%

“…In vitro studies of small vessel stents demonstrated that the minimum diameter of stents for reliable visualization of the lumen using MS-CTA was 4.0 mm (1,11,12). There are only small case series in patients available that seem to confirm the results of these in vitro studies (9).…”

Section: Discussionsupporting

confidence: 55%

Influence of different reconstruction parameters in the visualization of intracranial stents using C-arm flat panel CT angiography: experience in an animal model

et al. 2015

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“…Recent studies have shown the potential of IV-ACT in the delineation of even small-sized (2-or 3-mm diameter) intracranial stents and the accurate depiction of in-stent restenosis, compared with IA-DSA. 23 In the postcoiling evaluation of intracranial aneurysms, ACT proved to be a useful addition to conventional IA-DSA. 24 The ability of ACT to produce thin cross-sectional images with approximately 0.2-mm section thickness is also valuable in the characterization of spinal dural arteriovenous fistulas.…”

mentioning

confidence: 99%

Feasibility of Flat Panel Angiographic CT after Intravenous Contrast Agent Application in the Postoperative Evaluation of Patients with Clipped Aneurysms

Psychogios¹,

Wachter²,

Mohr³

et al. 2011

AJNR Am J Neuroradiol

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BACKGROUND AND PURPOSE: Important findings, such as aneurysm remnants or major arterial occlusion, can be detected on intra-or postoperative angiography after surgical clipping of intracranial aneurysms. The purpose of this study was to evaluate the feasibility of IV-ACT for the postoperative detection of residual aneurysms and parent vessel patency compared with IA-DSA, which was selected as the standard reference method.

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“…4,28,29 However, no objective data analysis has been performed on the reliability of IV FDCT with DSA as a reference. Furthermore, previous studies compared stenotic lesions using different radiologic methods within 30 days.…”

Section: 12mentioning

confidence: 99%

Feasibility of Intravenous Flat Panel Detector CT Angiography for Intracranial Arterial Stenosis

Jeon

Sheen²,

Hwang³

et al. 2012

AJNR Am J Neuroradiol

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Angiographic CT after Intravenous Contrast Agent Application: A Noninvasive Follow-Up Tool after Intracranial Angioplasty and Stenting

Abstract: 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.

Cited by 28 publications

References 27 publications

Influence of different reconstruction parameters in the visualization of intracranial stents using C-arm flat panel CT angiography: experience in an animal model

Influence of different reconstruction parameters in the visualization of intracranial stents using C-arm flat panel CT angiography: experience in an animal model

Feasibility of Flat Panel Angiographic CT after Intravenous Contrast Agent Application in the Postoperative Evaluation of Patients with Clipped Aneurysms

Feasibility of Intravenous Flat Panel Detector CT Angiography for Intracranial Arterial Stenosis

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