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July-August 2020 Archives - AJNR News Digest

July-August 2020

Introduction

Is 7T MRI the Holy Grail for Neuroradiology?

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Maria Isabel Vargas

Last year, ultra-high-field 7T MRI was approved by the FDA and the European Union for clinical use in routine daily practice. The scientific community has great expectations from this technology, on the one hand due to the high spatial resolution that can be achieved and, on the other hand, due to the much-improved … more »

ADULT BRAIN

Comparison of Multiple Sclerosis Cortical Lesion Types Detected by Multicontrast 3T and 7T MRI

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Josefina Maranzano

I chose this topic because I considered it essential to assess the potential of 3T multicontrast cortical lesion detection protocols. Cortical lesions represent a large percentage of the overall lesion load in multiple sclerosis. Unfortunately, they are more difficult to detect in clinical standard 1.5T and 3T MRI scans. 7T scanners have given very promising … more »

ADULT BRAIN

Acetazolamide-Loaded Dynamic 7T MR Quantitative Susceptibility Mapping in Major Cerebral Artery Steno-Occlusive Disease: Comparison with PET

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Kuniaki Ogasawara

In the clinical setting, cerebrovascular reactivity (CVR) to acetazolamide (ACZ) is measured using perfusion SPECT and perfusion CT or MRI. However, the timing of scanning for the measurement of perfusion parameters after ACZ administration varies among these modalities, and the optimal timing in patients with major cerebral arterial steno-occlusive disease remains unknown. … more »

ADULT BRAIN

Wall Contrast Enhancement of Thrombosed Intracranial Aneurysms at 7T MRI

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Karsten H. Wrede

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Taku Sato

Since 2009, our ultra-high-field 7T MRI has allowed us in vivo visualization of the cerebral vascular microstructures. We are paying special attention to cerebrovascular diseases such as cerebral aneurysms, Moyamoya angiopathy, arteriovenous malformations, and cavernous angiomas.1-4 … more »

ADULT BRAIN

MRI Vessel Wall Imaging after Intra-Arterial Treatment for Acute Ischemic Stroke

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Arjen Lindenholz

Our university hospital has a dedicated research department focused on both research and clinical applications of 7T MRI. One of our clinical studies is the Intracranial Vessel Wall MR Imaging (IVI) study, a recently completed cross-sectional study that over the past 10 years has included patients with acute ischemic stroke or transient ischemic … more »