Mri Stroke Diagnosis
Mri Stroke Diagnosis - Related Videos
12:50
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Cited by 26 •
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Lesion Explorer (LE) is a semi-automatic, image-processing pipeline developed to obtain regional brain tissue and subcortical hyperintensity lesion volumetrics from structural MRI of Alzheimer's disease and normal elderly. To ensure a high level of accuracy and reliability, the following is a video-guided, standardized protocol for LE's manual procedures.
15:53
Utilizing 3D Printing Technology to Merge MRI with Histology: A Protocol for Brain Sectioning
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Cited by 30 •
2016
The overall goal of this protocol is to accurately align magnetic resonance imaging (MRI) image volumes with histology sections via the creation of customized 3D-printed brain holders and slicer boxes.
06:58
Synthesis of an In vivo MRI-detectable Apoptosis Probe
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Cited by 3 •
2012
Early detection of apoptosis may identify at-risk cell populations in a variety of diseases. Here we demonstrate a method to link an early apoptosis-detection protein (Annexin V) to a MRI-detectable iron oxide nanoparticle (SPIO). This method may be extended to other proteins of interest to generate MRI-detectable molecular imaging probes.
07:34
FISH for Pre-implantation Genetic Diagnosis
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Cited by 17 •
2011
This article describes the selection of suitable probes for single-cell FISH, spreading techniques for blastomere nuclei, and in situ hybridization and signal scoring, applied to pre-implantation genetic diagnosis (PGD) in a clinical setting.
06:06
Optogenetic Functional MRI
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Cited by 18 •
2016
This protocol describes the steps and data analysis required to successfully perform optogenetic functional magnetic resonance imaging (ofMRI). ofMRI is a novel technique that combines high-field fMRI readout with optogenetic stimulation, allowing for cell type-specific mapping of functional neural circuits and their dynamics across the whole living brain.
FAQs
Diffusion-weighted imaging (DWI) is especially valuable because it detects restricted water movement associated with swollen cells. This signal can reveal acute ischemia before abnormalities become visible on conventional structural scans. In practice, its timing advantage helps clinicians recognize recent brain injury when other imaging findings may still be subtle, strengthening early diagnostic assessment.
These sequences contribute different findings to the same examination. FLAIR can help display the extent of a brain lesion, susceptibility-weighted imaging can reveal bleeding, and MR angiography can show blocked or narrowed vessels. Interpreting them together gives clinicians a broader picture of tissue injury and associated vascular abnormalities than one sequence alone.
MR angiography focuses on the brain’s vessels rather than only the injured tissue. It can demonstrate vessels that are blocked or narrowed, adding vascular information to the lesion findings shown by other sequences. This helps clinicians relate a suspected stroke pattern to an abnormal blood vessel and supports a more complete assessment of cerebrovascular disease.
A combined assessment considers the presence and extent of tissue injury, evidence of bleeding, and the condition of major vessels. DWI contributes information about restricted water movement, FLAIR helps show lesion extent, susceptibility-weighted imaging addresses bleeding, and MR angiography evaluates blockage or narrowing. Together, these findings improve characterization of the event.
MRI findings can support decisions about which treatment approach is appropriate by clarifying the nature and extent of brain injury and identifying relevant vascular abnormalities. The same information may also help clinicians estimate prognosis. Because MRI can characterize several aspects of stroke within one assessment, it contributes to both immediate management and subsequent clinical planning.
MRI provides a nonionizing way to follow changes in the brain during recovery, allowing clinicians and investigators to examine evolving injury without using ionizing radiation. Repeated imaging can support assessment of recovery, while research applications use the technique to investigate cerebrovascular disease, lesion characteristics, vascular abnormalities, and relationships between imaging findings and outcomes.