Added value of multimodal computed tomography imaging: analysis of 1994 acute ischaemic strokes

Bill, Olivier; Faouzi, Mohamed; Meuli, Reto; Maeder, P.; Wintermark, Max; Michel, Patrik

doi:10.1111/ene.13173

Cited by 13 publications

(11 citation statements)

References 26 publications

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“…Multimodal computed tomography is the recommended imaging investigation in acute ischemic stroke. It is faster and less costly than magnetic resonance imaging [5] and consists of noncontrast computed tomography (NCCT), computed tomography angiography (CTA), and computed tomography perfusion (CTP). NCCT is first used to differentiate between hemorrhagic and ischemic stroke.…”

Section: Introductionmentioning

confidence: 99%

Incidence and Risk Factors of Postcontrast Acute Kidney Injury in Patients with Acute Ischemic Stroke

Chusiri

Chutinet

Suwanwela

et al. 2020

Stroke Research and Treatment

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Background. Multimodal computed tomography (CT) guides decision-making regarding use of thrombolytic agents in acute ischemic stroke patients. However, postcontrast acute kidney injury (PC-AKI) is a potential adverse effect of the contrast media used, which may require hemodialysis and cause a longer hospital stay. The incidence and risk factors of PC-AKI in acute ischemic stroke patients, particularly in Thailand, remain unclear. Goal. We aimed at determining the incidence and risk factors of PC-AKI in patients with acute ischemic stroke undergoing multimodal CT. Methods. We conducted a retrospective review of Thai acute ischemic stroke patients admitted to the King Chulalongkorn Memorial Hospital between January 2014 and December 2017 who received multimodal CT and thrombolytic treatment with alteplase. Result. Overall, 109 patients were included for analysis; eight patients (7.3%) developed PC-AKI. Estimated glomerular filtration rate eGFR≤30 mL/min and mechanical thrombectomy were risk factors significantly associated with PC-AKI. Conclusion. The incidence of PC-AKI in a real practice setting did not differ from previous reports. Two factors were associated with PC-AKI, eGFR≤30 mL/min and mechanical thrombectomy. Patients without these risk factors may not need to wait for the results of renal function testing prior to multimodal CT.

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Section: Introductionmentioning

confidence: 99%

Incidence and Risk Factors of Postcontrast Acute Kidney Injury in Patients with Acute Ischemic Stroke

Chusiri

Chutinet

Suwanwela

et al. 2020

Stroke Research and Treatment

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“…Computed tomography with CT perfusion (CTP) approximately doubles the detection rate of acute ischaemia compared to plain CT [5]. Whilst there has been extensive research concerning the diagnostic and prognostic value of CTP in the anterior circulation, there is only little evidence regarding the posterior circulation [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Perfusion computed tomography in posterior circulation stroke: predictors and prognostic implications of focal hypoperfusion

Pallesen

Lambrou

Eskandari

et al. 2018

Euro J of Neurology

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“…Different imaging techniques in tomography have different characteristics that strongly depend on the specific data acquisition setup and the imaged tissue/material. Hence it is a major issue (and at the heart of current research, see, e.g., [10,14,27,34,36,39,43]) to improve the resolution of an image by combining different imaging techniques. In general it is, however, not clear, how this can actually be performed efficiently.…”

Section: Introductionmentioning

confidence: 99%

On Double-Resolution Imaging and Discrete Tomography

Alpers¹,

Gritzmann²

2018

SIAM J. Discrete Math.

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Super-resolution imaging aims at improving the resolution of an image by enhancing it with other images or data that might have been acquired using different imaging techniques or modalities. In this paper we consider the task of doubling, in each dimension, the resolution of grayscale images of binary objects by fusion with double-resolution tomographic data that have been acquired from two viewing angles. We show that this task is polynomial-time solvable if the gray levels have been reliably determined. The problem becomes NP-hard if the gray levels of some pixels come with an error of ±1 or larger. The NP-hardness persists for any larger resolution enhancement factor. This means that noise does not only affect the quality of a reconstructed image but, less expectedly, also the algorithmic tractability of the inverse problem itself.

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Added value of multimodal computed tomography imaging: analysis of 1994 acute ischaemic strokes

Abstract: Our study shows an association of MCTI use with lower adjusted 12-month mortality, better identification of the stroke mechanism and no signs of harm.

Cited by 13 publications

References 26 publications

Incidence and Risk Factors of Postcontrast Acute Kidney Injury in Patients with Acute Ischemic Stroke

Incidence and Risk Factors of Postcontrast Acute Kidney Injury in Patients with Acute Ischemic Stroke

Perfusion computed tomography in posterior circulation stroke: predictors and prognostic implications of focal hypoperfusion

On Double-Resolution Imaging and Discrete Tomography

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