Intra-arterial high signals on arterial spin labeling perfusion images predict the occluded internal carotid artery segment

Sogabe, Shu; Satomi, Junichiro; Tada, Yasuyuki; Kanematsu, Yasuhisa; Kuwayama, Kazuyuki; Yagi, Kenji; Yoshioka, Shinji; Mizobuchi, Yoshifumi; Mure, Hideo; Yamaguchi, Izumi; Abe, Takashi; Yamamoto, Nobuaki; Kitazato, Keiko T.; Kaji, Ryuji; Harada, Masafumi; Saijo, Nagahiro

doi:10.1007/s00234-017-1828-9

Cited by 11 publications

(5 citation statements)

References 24 publications

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“…No previous studies have investigated blinded interrater agreement on the presence or localization of the ASL BVS in a large cohort of patients, with only one paper evaluating interrater agreement in 13 patients 9 . Our results indicate that the mere presence of the ASL BVS is less straightforward than prior reports have indicated.…”

Section: Discussioncontrasting

confidence: 66%

The bright vessel sign on arterial spin labeling MRI for heralding and localizing large vessel occlusions

McCullough-Hicks

Mlynash

et al. 2021

Journal of Neuroimaging

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Background and Purpose The significance of a bright vessel sign (BVS) at the site of a large vessel occlusion (LVO) on MR arterial spin labeling (ASL) sequence is not widely reported. We compared the utility of the ASL BVS to the gradient echo (GRE) susceptibility vessel sign (SVS) in heralding and localizing LVOs in a large cohort; most underwent digital subtraction angiography (DSA) and endovascular therapy for acute stroke. Methods A total of 171 patients with large hemispheric stroke symptoms had baseline and follow‐up MRIs with ASL, GRE, and MR angiogram (MRA). Scans were evaluated for (1) presence versus absence and (2) location of ASL BVS and GRE SVS. For patients who underwent DSA, data comparing presence and location of ASL BVS and GRE SVS to occlusions found on angiography, as well as resolution of the signs after successful recanalization, were also evaluated. Results Compared to MRA, the sensitivity of the ASL BVS for an LVO was .83, significantly better than .67 for GRE SVS (p = .001). Localization of vessel occlusion was correct 60.4% of the time by ASL compared to 64.4% by GRE (p = .502). For the 107 patients who underwent DSA, the sensitivity of ASL BVS was .80 compared to .64 for GRE SVS (p = .009). Localization of LVO found on DSA was correct 63.5% of the time by ASL BVS compared to 72.9% by GRE SVS (p = .251). Conclusion ASL BVS is significantly more sensitive than GRE SVS for identification of LVO on both MRA and DSA.

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Section: Discussioncontrasting

confidence: 66%

The bright vessel sign on arterial spin labeling MRI for heralding and localizing large vessel occlusions

McCullough-Hicks

Mlynash

et al. 2021

Journal of Neuroimaging

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“…Three-dimensional pseudocontinuous arterial spin labeling (3D-PCASL) is a technique for image perfusion that uses continuous labeling ( 12 , 13 ). This technique is non-invasive and can be used to perform functional imaging and evaluation of the whole brain repeatedly without the need for contrast agent injection.…”

Section: Introductionmentioning

confidence: 99%

Application of Three-Dimensional Pseudocontinuous Arterial Spin Labeling Perfusion Imaging in the Brains of Children With Autism

et al. 2022

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ObjectiveTo explore the application of three-dimensional pseudocontinuous arterial spin labeling (3D-PCASL) perfusion imaging in the brains of children with autism and to understand the characteristics of cerebral blood perfusion in children with autism.MethodsA total of 320 children with autism (160 men and 160 women) aged between 2 and 18 years and 320 age- and sex-matched healthy children participated in the study. All children were scanned by 3.0 T magnetic resonance axial T1 fluid-attenuated inversion recovery (FLAIR), T2 FLAIR, 3D-T1, and 3D-PCASL sequences. After postprocessing, cerebral blood flow (CBF) values in each brain region of children with autism and healthy children at the same age were compared and analyzed. Furthermore, CBF characteristics in each brain region of autistic children at various ages were determined.ResultsThe CBF values of the frontal lobe, hippocampus, temporal lobe, and caudate nucleus of children with autism are lower than those of healthy children (P < 0.05). Additionally, as the ages of children with autism increase, the number of brain regions with decreased CBF values gradually increases. A receiver operating characteristic (ROC) analysis results show that the CBF values of the frontal lobe, hippocampus, temporal lobe, and caudate nucleus can distinguish children with autism [area under the ROC curve (AUC) > 0.05, P < 0.05].ConclusionThe 3D-PCASL shows lower brain CBF values in children with autism.Clinical Trial Registrationwww.ClinicalTrials.gov, identifier: ChiCTR2000034356.

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“…The bright intravascular signal known as arterial transit artifact (ATA) on ASL may indicate the presence and degree of collateral perfusion in moyamoya patients (23,24). The ATAs produce hyperintense signals along the cerebral cortical sulcus, which is caused by delayed blood flow due to the stenosis or occlusion of main arteries, or collateral flow accompanying the stenosis or occlusion (25,26). Investigating the cause of the ATA is necessary to evaluate the pathophysiology of patients.…”

Section: Discussionmentioning

confidence: 99%

Recurrent transient ischemic attacks in a moyamoya syndrome patient with ultra-long imaging follow-up

Zhang¹,

Xing²,

Zhang³

2022

Quant Imaging Med Surg

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Intra-arterial high signals on arterial spin labeling perfusion images predict the occluded internal carotid artery segment

Abstract: High IASs on ASL images can identify slow stagnant and collateral flow through the ophthalmic artery in patients with acute ICA occlusion and help to predict the occlusion site.

Cited by 11 publications

References 24 publications

The bright vessel sign on arterial spin labeling MRI for heralding and localizing large vessel occlusions

The bright vessel sign on arterial spin labeling MRI for heralding and localizing large vessel occlusions

Application of Three-Dimensional Pseudocontinuous Arterial Spin Labeling Perfusion Imaging in the Brains of Children With Autism

Recurrent transient ischemic attacks in a moyamoya syndrome patient with ultra-long imaging follow-up

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