Advances in Stroke Imaging
Peiying Liu1
1University of Maryland School of Medicine, United States

Synopsis

Recent studies have demonstrated the role of advanced MRI in the patient selection and management of acute stroke. It has also been demonstrated that using MRI as the first-line imaging technique can be fast, suitable, and useful to improve recanalization rates and patient outcomes. This presentation will review recent advances of the standard clinical MRI sequences including structural MRI, susceptibility weighted imaging (SWI), MR angiography (MRA), diffusion-weighted imaging (DWI) and perfusion-weighted imaging (PWI), as well as new techniques such as MR Fingerprinting (MRF), Amide proton transfer (APT) MRI, intravoxel incoherent motion (IVIM) MRI, and Quantitative susceptibility mapping (QSM).

Although computed tomography (CT) is still the standard imaging for acute stroke patients, several recent studies have demonstrated the role of advanced MRI in the patient selection and management of acute stroke. Large-scale observational studies have also showed that using MRI as the first-line imaging technique can be fast, suitable, and useful to improve recanalization rates and patient outcomes. Among the available MRI techniques, structural MRI (e.g., T1/T2-weighted, FLAIR), susceptibility weighted imaging (SWI) and MR angiography (MRA) are typically used to delineate the extent of infarction and for assessment of the extracranial and intracranial vasculature. Diffusion-weighted imaging (DWI) can identify ischemic lesions with high accuracy, and perfusion-weighted imaging (PWI) can identify ischemic penumbral tissue. This presentation will review recent advances of these techniques as well as new techniques for stroke imaging, such as MR Fingerprinting (MRF), Amide proton transfer (APT) MRI, intravoxel incoherent motion (IVIM) MRI, and Quantitative susceptibility mapping (QSM).

Acknowledgements

No acknowledgement found.

References

No reference found.
Proc. Intl. Soc. Mag. Reson. Med. 30 (2022)