The objective of this study was to quantitatively evaluate the volume of the ischemic penumbra using susceptibility-weighted imaging and mapping (SWIM) of asymmetrical prominent cortical veins (APCVs) in patients with acute ischemic stroke.
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The SpinTech team is excited to announce that one of our recent papers made the cover of NeuroImage September 2020 issue! The paper features the use of our STrategically Acquired Gradient Echo (STAGE) MRI software technology in Parkinson’s research to track…
Author(s): Siamak P Nejad-Davarani 1, Niloufar Zakariaei 1, Yongsheng Chen 2, E Mark Haacke 3 4, Newton J Hurst Jr 1, M Salim Siddiqui 1, Lonni R Schultz 5, James M Snyder 6, Tobias Walbert 6, Carri K Glide-HurstJournal: Medical PhysicsPublished: 2020Read Full...
Optimizing neuromelanin contrast in the substantia nigra and locus coeruleus using a magnetization transfer contrast prepared 3D gradient recalled echo sequence
Neuromelanin (NM) loss in the substantia nigra (SN) and locus coeruleus (LC) is being investigated as an imaging biomarker for Parkinson’s disease (PD) using magnetization transfer contrast (MTC) magnetic resonance imaging. The goal of this paper was to optimize the NM contrast in the SN and LC as a function of flip angle using a 3D GRE MTC strategically acquired gradient echo (STAGE) imaging approach.
Reduced flow into the brain or decreased jugular venous outflow from the brain may serve as a potential biomarker for Parkinson’s disease (PD). Our goal was to compare the presence of vascular abnormalities, flow, and increases in midbrain iron content (a hallmark of the disease) in patients with PD.
Susceptibility and Volume Measures of the Mammillary Bodies Between Mild Cognitively Impaired Patients and Healthy Controls
The purpose of this study was to investigate the baseline values and differences for susceptibility and volume of the mammillary bodies between mild cognitively impaired (MCI) patients and healthy controls (HCs), and further explore their differences in relation to gender, MCI subtypes and apolipoprotein E (APOE) genotypes.
Semi-automatic detection of increased susceptibility in multiple sclerosis white matter lesions imaged with 1.5T MRI
The aims of this study were: 1) to define and validate a semi-automatic method for detecting RoIS in WML from quantitative susceptibility maps (QSM) and susceptibility-weighted imaging (SWI) acquired with a 1.5 T MRI scanner; 2) to assess the prevalence of WML with RoIS and the susceptibility in those areas; and 3) to test the association between RoIS in WML and clinical outcomes.
We hypothesized that cerebral microbleeds (CMBs) in multiple sclerosis (MS) patients will be detected with higher prevalence compared to healthy controls (HC) and that quantitative susceptibility mapping (QSM) will help remove false positives seen in susceptibility weighted imaging (SWI).
Imaging the Nigrosome 1 in the substantia nigra using susceptibility weighted imaging and quantitative susceptibility mapping: An application to Parkinson’s disease
The purpose of this study was to create a robust high quality, rapid imaging protocol, determine a slice by slice characterization of the appearance of N1 (the “N1 sign”) and evaluate the loss of the N1 sign in order to differentiate healthy controls (HCs) from patients with PD.
Visualizing the lateral habenula using susceptibility weighted imaging and quantitative susceptibility mapping
The habenulae consist of a pair of small nuclei which bridge the limbic forebrain and midbrain monoaminergic centers. They are implicated in major depressive disorders due to abnormal phasic response when provoked by a conditioned stimulus.
Plaque characteristics of middle cerebral artery assessed using strategically acquired gradient echo (STAGE) and vessel wall MR contribute to misery downstream perfusion in patients with intracranial atherosclerosis
To assess plaque vulnerability of the middle cerebral artery (MCA) using strategically acquired gradient echo (STAGE) versus high-resolution vessel wall MRI (hr-vwMRI), and explore the relationship between plaque characteristics and misery downstream perfusion.
STrategically Acquired Gradient Echo (STAGE) imaging, part III: Technical advances and clinical applications of a rapid multi-contrast multi-parametric brain imaging method
One major thrust in radiology today is image standardization with a focus on rapidly acquired quantitative multi-contrast information. In this paper, we discuss the strengths and weaknesses of STAGE, demonstrate its contrast-to-noise (CNR) behavior relative to a large clinical data set and introduce a few new image contrasts derived from STAGE.