High-resolution vessel wall magnetic resonance imaging of carotid and intracranial vessels

Sui, Binbin; Gao, Peiyi

doi:10.1177/0284185119826538

Cited by 10 publications

(7 citation statements)

References 90 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…HR-MR imaging can accurately evaluate the vessel lumen, wall, and course; it can provide information on the degree of inflammation of the wall and the collateral circulation and distinguish lumen blood stasis and thrombus distal to the occlusion. 35,36 In this study, the HR-MR imaging characteristics of patients with successful recanalization included a tapered stump, less secondary collateral circulation, reversed distal ICA flow at the level of petrous segment or below, more lipid-rich necrotic core, less calcification volume, shorter lesion length (for proximal occlusion), and lumen iso-or hypointensity and larger lumen area (for distal occlusion). Multivariate analysis showed that shorter lesion length and less calcification volume (for proximal occlusion) and reversed distal ICA flow at the petrous segment or below and larger lumen area (for distal occlusion) were independent predictors of successful recanalization.…”

Section: Discussionmentioning

confidence: 98%

High-Resolution MRI for Evaluation of the Possibility of Successful Recanalization in Symptomatic Chronic ICA Occlusion: A Retrospective Study

Tang¹,

Yan²,

Gao³

et al. 2022

AJNR Am J Neuroradiol

View full text Add to dashboard Cite

BACKGROUND AND PURPOSE: Accurate radiologic evaluation of the possibility of successful recanalization in symptomatic chronic ICA occlusion remains challenging. This study aimed to investigate the high-resolution MR imaging characteristics of symptomatic chronic ICA occlusion and their association with successful recanalization. MATERIALS AND METHODS:Consecutive patients with symptomatic chronic ICA occlusion who underwent balloon dilation plus stent implantation were identified retrospectively and divided into 2 groups: a successful recanalization group and an unsuccessful recanalization group. Clinical and high-resolution MR imaging characteristics were compared between the groups. Univariate and multivariate analyses were used to identify the characteristics associated with successful recanalization.RESULTS: A total of 114 patients were included in the study. High-resolution MR imaging characteristics independently associated with unsuccessful recanalization were longer lesion length (OR, 0.41; 95% CI, 0.36-0.55; P ¼ .009) and larger calcification volume (OR, 0.56; 95% CI, 0.37-0.68; P ¼ .002) for proximal occlusion and reversed distal ICA flow at the level of ophthalmic segment or above (OR, 0.14; 95% CI, 0.08-0.48; P ¼ .001). Reversed distal ICA flow at the level of the petrous segment or below (OR, 4.07; 95% CI, 1.65-8.38; P ¼ .001) and lumen area (OR, 1.13; 95% CI, 1.04-1.61; P ¼ .002) for distal occlusion were risk factors of successful recanalization. CONCLUSIONS:In symptomatic chronic ICA occlusion, lesion length and calcification volume (for proximal occlusion), the level of reversed distal ICA flow, and the lumen area (for distal occlusion) appear to be predictors of successful recanalization. High-resolution MR imaging can evaluate chronic ICA occlusion and help in clinical decision-making.

show abstract

Section: Discussionmentioning

confidence: 98%

High-Resolution MRI for Evaluation of the Possibility of Successful Recanalization in Symptomatic Chronic ICA Occlusion: A Retrospective Study

Tang¹,

Yan²,

Gao³

et al. 2022

AJNR Am J Neuroradiol

View full text Add to dashboard Cite

show abstract

“…RFCs occurred in one-fifth of the BA plaques with moderate to severe stenosis (50–99%). For other intracranial arteries, such as the MCA, RFCs was hard to visualize by 3.0 T HR-MRI [ 14 ] due to the different geometry. The diameter of the BA is larger than that of the MCA; the shape of the BA is a relative straight line [ 15 ]; and the BA has more cisternal space when compared with the MCA [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

Increased Proximal Wall Shear Stress of Basilar Artery Plaques Associated with Ruptured Fibrous Cap

Huang

Chen

et al. 2022

Brain Sciences

View full text Add to dashboard Cite

Plaque rupture of the basilar artery is one of the leading causes of posterior circulation stroke. The present study aimed to investigate the role of fluid dynamics in the ruptured fibrous cap of basilar artery plaques. Patients with basilar artery plaques (50–99% stenosis) were screened. Integrity of the fibrous cap was assessed by high-resolution MRI. Computational fluid dynamics models were built based on MR angiography to obtain the wall shear stress and velocity. A total of 176 patients were included. High-resolution MRI identified 35 ruptured fibrous caps of basilar artery plaques. Ruptured fibrous cap was significantly associated with acute infarction (27/35 vs. 96/141, p < 0.05) in the territory of the basilar artery. Proximal wall shear stress of stenosis was positively related with the ruptured fibrous cap (OR 1.564; 95% CI, 1.101–2.222; p = 0.013). The threshold of wall shear stress for the ruptured fibrous cap of basilar artery plaques was 4.84 Pa (Area under ROC 0.732, p = 0.008, 95%CI 0.565–0.899). The present study demonstrated that increased proximal wall shear stress of stenosis was associated with ruptured fibrous caps of basilar artery plaques.

show abstract

“…VW-MRI has an added aspect when diagnosing arterial dissection, as it contributes direct visualization and characterization of the wall of the vessel (17,19,(29)(30)(31)(32). A study conducted on arterial dissection found an intimal flap on luminal imaging (CTA, MRA, or DSA) in 16% of patients while on VW-MRI it was found in 42% (33).…”

Section: Discussionmentioning

confidence: 99%

Assessment of association between the carotid web and dissection in spontaneous internal carotid artery dissection patients using vessel wall MRI

Shrestha

Xie

et al. 2021

Acta Radiol

View full text Add to dashboard Cite

Background Internal carotid artery dissection (ICAD) is the major cause of ischemic stroke in young to middle-aged people. Recognition of predisposing factors may facilitate in early individual risk prediction and expand treatment. Purpose To evaluate the association between a carotid web and dissection in patients with ICAD using vessel wall magnetic resonance imaging (VW-MRI). Material and Methods A retrospective study was conducted of 223 patients who underwent VW-MRI. Of these patients, 58 patients with craniocervical artery dissection (CCAD) (33 ICAD and 25 vertebrobasilar artery dissection [VBAD]) were included. The control group (n = 165) consisted of patients without arterial dissection who had undergone VW-MRI . The presence of a carotid web in the posterior aspect of carotid bulb was recorded. The distance between the carotid web and start of dissection in ICA was recorded. Results The presence of a carotid web showed a significant difference between the ICAD, VBAD, and control groups (19 [57.6%] vs. 5 [20%] vs. 36 [21.8%], respectively; P < 0.001). In multi-nominal analysis, the presence of a carotid web showed a significant difference between the ICAD and VBAD groups and the ICAD and control groups ( P < 0.05), with odds ratios of 5.41 (95% confidence interval [CI]=1.634–17.973) and 4.81 (95% CI=2.176–10.651), respectively. Out of 19 ICAD patients with carotid web, 16 had occurrence of dissection in the C1 segment of the ICA with a mean distance of 1.91 ± 1.71 cm from the carotid web. Conclusion Presence of a carotid web was more frequent in patients with ICAD. The carotid web may be one of the predisposing factors for development of dissection in patients with ICAD.

show abstract

High-resolution vessel wall magnetic resonance imaging of carotid and intracranial vessels

Cited by 10 publications

References 90 publications

High-Resolution MRI for Evaluation of the Possibility of Successful Recanalization in Symptomatic Chronic ICA Occlusion: A Retrospective Study

High-Resolution MRI for Evaluation of the Possibility of Successful Recanalization in Symptomatic Chronic ICA Occlusion: A Retrospective Study

Increased Proximal Wall Shear Stress of Basilar Artery Plaques Associated with Ruptured Fibrous Cap

Assessment of association between the carotid web and dissection in spontaneous internal carotid artery dissection patients using vessel wall MRI

Contact Info

Product

Resources

About