Real-time Mri
Real-time Mri - Related Videos
07:05
A Protocol for the Administration of Real-Time fMRI Neurofeedback Training
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Cited by 5 •
2017
The ability to induce and/or control neural plasticity may be critical in future treatments for neurologic disorders and the recovery from brain injury. In this paper, we present a protocol on the use of neurofeedback training with functional magnetic resonance imaging to modulate human brain function.
11:29
Real-time Video Projection in an MRI for Characterization of Neural Correlates Associated with Mirror Therapy for Phantom Limb Pain
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Cited by 5 •
2019
We present a novel combined behavioral and neuroimaging protocol employing real-time video projection for the purpose of characterizing the neural correlates associated with mirror therapy within the magnetic resonance imaging scanner environment in leg amputee subjects with phantom limb pain.
08:16
Movement Retraining using Real-time Feedback of Performance
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Cited by 4 •
2013
Retraining abnormal movement patterns following injury or disease is a key component of physical rehabilitation. Recent advances in technology have permitted accurate assessment of movement during a variety of tasks, with near instantaneous quantification of results. This provides new opportunities for modification of faulty movement patterns in real time.
13:32
Recording Human Electrocorticographic (ECoG) Signals for Neuroscientific Research and Real-time Functional Cortical Mapping
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Cited by 134 •
2012
We present a method for collecting electrocorticographic signals for research purposes from humans who are undergoing invasive epilepsy monitoring. We show how to use the BCI2000 software platform for data collection, signal processing and stimulus presentation. Specifically, we demonstrate SIGFRIED, a BCI2000-based tool for real-time functional brain mapping.
02:57
Real Time RT-PCR
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2021
Real-time reverse transcription-polymerase chain reaction, or Real-time RT-PCR, is an analytical tool used to determine the expression level of target genes. The method involves converting mRNA to complementary DNA with the help of an enzyme known as reverse transcriptase, followed by the PCR amplification of the cDNA. These two processes can be performed simultaneously in a single tube or separately as a two-step reaction. The real-time quantification of the number of amplified products is...
FAQs
Real-time MRI reduces the delay between successive images by repeatedly applying radiofrequency excitations, using magnetic-field gradients, and accelerating image acquisition and reconstruction. These coordinated processes allow the system to update images continuously enough to represent changing anatomy or physiology rather than compiling information only at isolated time points. The result is a visual record of motion as it occurs.
The measurable signal originates from the behavior of nuclear spins placed in a magnetic field. Radiofrequency excitations interact with these spins, while the resulting signal is organized spatially through magnetic-field gradients. Repeatedly collecting and reconstructing this information produces successive images, allowing changes in tissues, fluids, or organs to be followed over time.
Conventional MRI commonly provides static snapshots or observations at selected time points, whereas Real-time MRI emphasizes rapid succession and minimal delay between images. This distinction matters when the subject or tissue changes during the acquisition. Instead of requiring motion to be inferred from separate fixed observations, the technique can display the progression of physiological events directly.
A typical workflow repeatedly applies radiofrequency excitations, encodes the resulting information with magnetic-field gradients, and rapidly acquires image data. Accelerated reconstruction then converts successive measurements into images that can be displayed with minimal delay. This sequence is repeated while the relevant anatomy or physiological process changes, creating a time-resolved observation rather than a single fixed image.
The approach is useful when movement itself carries important information, including changes in tissues, fluid movement, and organ function. Its ability to observe events without requiring repeated breath-holds or restricting measurements to predetermined time points supports more responsive assessment. Researchers can therefore examine dynamic physiological behavior under conditions that would be difficult to capture with static imaging alone.
In biochemistry and related biomedical research, dynamic imaging can connect tissue-level or organ-level changes with broader physiological behavior. Real-time MRI does not simply provide a molecular measurement; it supplies time-resolved observations of anatomy, fluids, and function that can be interpreted alongside biochemical processes. This relationship helps researchers place molecular and biochemical changes within whole-body physiological context.