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The Impact of Neuroimaging on Acute Stroke Treatment: Role of Magnetic Resonance Imaging

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Book cover Thrombolytic Therapy for Acute Stroke

Abstract

Intravenous thrombolysis with rt-PA has been the only proven acute stroke treatment for nearly two decades. There has been an ongoing debate about which imaging modality is the best and most adequate for acute stroke patients. In essence, the competitors are CT-based protocols (see previous chapter) and MRI-based approaches, which are the content of this chapter. We describe first protocol design for acute stroke MRI protocols and then what can be seen on the single sequences of a stroke MRI protocol. The advantages of MRI as an imaging modality are put forward and imaging based treatment paradigms are presented and discussed. Finally, we elaborate on the most recent trials utilizing this intriguing technology in perspective to clinical practice.

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Abbreviations

AICS:

Acute ischemic cerebrovascular syndrome

AIS:

Acute ischemic stroke

ADC:

Apparent diffusion coefficient

CBV:

Cerebral blood volume

CT:

Computed tomography

DWI:

Diffusion-weighted imaging

DSC:

Dynamic susceptibility contrast-enhanced

FLAIR:

Fluid attenuated inversion recovery

GRE:

Gradient echo

IA:

Intra-arterial

ICH:

Intracerebral hemorrhage

IV:

Intravenous

MRA:

Magnetic resonance angiography

MRI:

Magnetic resonance imaging

MIP:

Maximum intensity projection

NINDS:

National Institutes of Neurological Disorders and Stroke

SPECT:

Single-photon emission computed tomography

SAH:

Subarachnoid hemorrhage

SWI:

Susceptibility-weighted imaging

T2*-WI:

T2*-weighted imaging

tPA:

Tissue plasminogen activator

PI:

Perfusion imaging

PI/DWI-mismatch:

Perfusion-diffusion mismatch

PET:

Positron emission tomography

T2-WI:

T2-weighted imaging

TOF:

Time-of-flight

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Correspondence to Peter D. Schellinger M.D., Ph.D., F.A.H.A., F.E.S.O. .

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Schellinger, P.D., Köhrmann, M. (2015). The Impact of Neuroimaging on Acute Stroke Treatment: Role of Magnetic Resonance Imaging. In: Lyden, P. (eds) Thrombolytic Therapy for Acute Stroke. Springer, Cham. https://doi.org/10.1007/978-3-319-07575-4_13

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