A “one-stop-shop” 4D CTA protocol using 320-row CT for advanced imaging in acute ischemic stroke: a technical note

Dissaux, Brieg; Haioun, Karim; Nonent, Michel; Gentric, Jean-Christophe; Salem, Douraı̈ed Ben

doi:10.1007/s00330-019-06041-x

Cited by 12 publications

(10 citation statements)

References 19 publications

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“…The commonly used clinical calcification score CACS refers to Agatston score [7][8][9] , its disadvantage is due to the partial volume effect, the small calcification plaque score is easy to change during reexamination, the improved APQ technique avoids this change. Keelan 10 et al pointed out that calcification score can be used as an independent predictor of future coronary events, and is superior to the degree of stenosis and traditional risk factors.…”

Section: Discussionmentioning

confidence: 99%

Study on the relationship between Cardio-cerebrovascular events and the level of Atherosclerosis evaluated by Heart-brain Integrated CTA

Zhang

Zhu

et al. 2020

Preprint

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Background: To establish a one-stop cardio-cerebral vascular scanning technique based on double-source helical CT by analyzing the relationship between the nature of coronary artery, extracranial and extracranial vascular plaque, the degree of lumen stenosis and the occurrence and development of cardio-cerebrovascular disease (CCVD). Methods: the plaque properties, vascular stenosis degree, and plaque quantitative analysis results of coronary artery, extracranial and intracranial segments of coronary artery, extracranial and intracranial carotid artery in 39 patients who underwent combined heart-brain CTA scanning were analyzed. The correlation between the load degree of cardio-cerebrovascular plaque and cardio-cerebrovascular events was analyzed comprehensively. Results ：there were significant differences in age, high-density lipoprotein, diabetes, hypertension, smoking, plaque nature, plaque location, plaque composition and NIHSS score between the two groups. Conclusion: the combination of heart and brain CTA can help to establish the best clinical predictive model to prevent and stop the occurrence and development of coronary heart disease and stroke in time.

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Section: Discussionmentioning

confidence: 99%

Study on the relationship between Cardio-cerebrovascular events and the level of Atherosclerosis evaluated by Heart-brain Integrated CTA

Zhang

Zhu

et al. 2020

Preprint

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“…All patient underwent the same CTA-CTP protocol (CT Aquilion One Genesis—Canon Medical Systems). Our detailed protocol has been previously published [ 15 ]. Briefly, acquisitions were performed on a 320-row area detector CT Aquilion ONE Genesis (Canon Medical Systems).…”

Section: Methodsmentioning

confidence: 99%

Model-Based Iterative Reconstruction (MBIR) for ASPECT Scoring in Acute Stroke Patients Selection: Comparison to rCBV and Follow-Up Imaging

Dissaux

Aouni²,

Gentric

2022

Tomography

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Background: To compare a model-based iterative reconstruction (MBIR) versus a hybrid iterative reconstruction (HIR) for initial and final Alberta Stroke Program Early Ct Score (ASPECT) scoring in acute ischemic stroke (AIS). We hypothesized that MBIR designed for brain computed tomography (CT) could perform better than HIR for ASPECT scoring. Methods: Among patients who had undergone CT perfusion for AIS between April 2018 and October 2019 with a follow-up imaging within 7 days, we designed a cohort of representative ASPECTS. Two readers assessed regional-cerebral-blood-volume-ASPECT (rCBV-ASPECTS) on the initial exam and final-ASPECTS on the follow-up non-contrast-CT (NCCT) in consensus. Four readers performed independently MBIR and HIR ASPECT scoring on baseline NCCT. Results: In total, 294 hemispheres from 147 participants (average age of 69.59 ± 15.63 SD) were analyzed. Overall raters’ agreement between rCBV-map and MBIR and HIR ranged from moderate to moderate (κ = 0.54 to κ = 0.57) with HIR and moderate to substantial (κ = 0.52 to κ = 0.74) with MBIR. Overall raters’ agreement between follow-up imaging and HIR/MBIR ranged from moderate to moderate (κ = 0.55 to κ = 0.59) with HIR and moderate to almost perfect (κ = 0.48 to κ = 0.82) with MBIR. Conclusions: ASPECT scoring with MBIR more closely matched with initial and final infarct extent than classical HIR NCCT reconstruction.

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“…Novel 4D CTA scan protocol has been introduced, including a non-enhanced CT, dynamic CTA with reconstructed arterial and venous phases, perfusion of the whole brain, and CTA of the carotid arteries in a single acquisition using a 320-row area detector CT scanner. This approach involves a unique contrast injection technique and an acceptable radiation exposure dose in patients who present with acute ischemic stroke, and also uses model-based iterative reconstruction (MBIR), time summing reconstructions (time-maximum-intensity projection, tMIP), and subtraction techniques to optimize the results [ 46 ].…”

Section: Dect In the Context Of Cta And Ctpmentioning

confidence: 99%

Dual-energy computed tomography in acute ischemic stroke: state-of-the-art

et al. 2020

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Dual-energy computed tomography (DECT) allows distinguishing between tissues with similar X-ray attenuation but different atomic numbers. Recent studies demonstrated that this technique has several areas of application in patients with ischemic stroke and a potential impact on patient management. After endovascular stroke therapy (EST), hyperdense areas can represent either hemorrhage or contrast staining due to blood-brain barrier disruption, which can be differentiated reliably by DECT. Further applications are improved visualization of early infarctions, compared to single-energy computed tomography, and prediction of transformation into infarction or hemorrhage in contrast-enhancing areas. In addition, DECT allows detection and evaluation of the material composition of intra-arterial clots after EST. This review summarizes the clinical state-of-the-art of DECT in patients with stroke, and features some prospects for future developments. Key points • Dual-energy computed tomography (DECT) allows differentiation between tissues with similar X-ray attenuation but differentatomic numbers. • DECT has several areas of application in patients with ischemic stroke and a potential impact on patient management. • Prospects for future developments in DECT may improve treatment decision-making.

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A “one-stop-shop” 4D CTA protocol using 320-row CT for advanced imaging in acute ischemic stroke: a technical note

Cited by 12 publications

References 19 publications

Study on the relationship between Cardio-cerebrovascular events and the level of Atherosclerosis evaluated by Heart-brain Integrated CTA

Study on the relationship between Cardio-cerebrovascular events and the level of Atherosclerosis evaluated by Heart-brain Integrated CTA

Model-Based Iterative Reconstruction (MBIR) for ASPECT Scoring in Acute Stroke Patients Selection: Comparison to rCBV and Follow-Up Imaging

Dual-energy computed tomography in acute ischemic stroke: state-of-the-art

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