AIMC Topic: Cerebrovascular Circulation

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A physics-informed deep learning framework for dynamic susceptibility contrast perfusion MRI.

Medical physics Sep 20, 2024
BACKGROUND: Perfusion magnetic resonance imaging (MRI)s plays a central role in the diagnosis and monitoring of neurovascular or neurooncological disease. However, conventional processing techniques are limited in their ability to capture relevant ch...
Magnetic Resonance Angiography Cerebrovascular Circulation Physics Image Processing, Computer-Assisted Glioma Contrast Media Magnetic Resonance Imaging Humans Brain Neoplasms Deep Learning
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Robotic Assisted Transcranial Doppler Monitoring in Acute Neurovascular Care: A Feasibility and Safety Study.

Neurocritical care Sep 19, 2024
BACKGROUND: Transcranial color Doppler (TCD) is currently the only noninvasive bedside tool capable of providing real-time information on cerebral hemodynamics. However, being operator dependent, TCD monitoring is not feasible in many institutions. R...
Humans Adult Male Middle Aged Robotics Prospective Studies Female Aged Aged, 80 and over Middle Cerebral Artery Neurophysiological Monitoring Ultrasonography, Doppler, Transcranial Feasibility Studies Critical Care Cerebrovascular Circulation
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Latent Trajectories of Cerebral Perfusion Pressure and Risk Prediction Models Among Patients with Traumatic Brain Injury: Based on an Interpretable Artificial Neural Network.

World neurosurgery Sep 13, 2024
OBJECTIVE: This study aimed to characterize long-term cerebral perfusion pressure (CPP) trajectory in traumatic brain injury (TBI) patients and construct an interpretable prediction model to assess the risk of unfavorable CPP evolution patterns.
Cerebrovascular Circulation Neural Networks, Computer Algorithms Hospital Mortality Female Humans Brain Injuries, Traumatic Aged Intracranial Pressure Adult Blood Pressure Male Middle Aged Risk Assessment
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Super-Resolving and Denoising 4D flow MRI of Neurofluids Using Physics-Guided Neural Networks.

Annals of biomedical engineering Sep 2, 2024
PURPOSE: To obtain high-resolution velocity fields of cerebrospinal fluid (CSF) and cerebral blood flow by applying a physics-guided neural network (div-mDCSRN-Flow) to 4D flow MRI.
Humans Neural Networks, Computer Female Cerebrospinal Fluid Alzheimer Disease Cerebrovascular Circulation Aged Cerebral Ventricles Male Middle Aged Magnetic Resonance Imaging
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Improved visualization of intracranial distal arteries with multiple 2D slice dynamic ASL-MRA and super-resolution convolutional neural network.

Magnetic resonance in medicine Aug 18, 2024
PURPOSE: To develop a novel framework to improve the visualization of distal arteries in arterial spin labeling (ASL) dynamic MRA.
Image Processing, Computer-Assisted Magnetic Resonance Angiography Cerebrovascular Circulation Spin Labels Cerebral Arteries Adult Male Middle Aged Imaging, Three-Dimensional Humans Algorithms Neural Networks, Computer Brain Female
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Enhanced parameter estimation in multiparametric arterial spin labeling using artificial neural networks.

Magnetic resonance in medicine Jun 9, 2024
PURPOSE: Multiparametric arterial spin labeling (MP-ASL) can quantify cerebral blood flow (CBF) and arterial cerebral blood volume (CBV). However, its accuracy is compromised owing to its intrinsically low SNR, necessitating complex and time-consumin...
Humans Neural Networks, Computer Algorithms Magnetic Resonance Imaging Signal-To-Noise Ratio Brain Young Adult Breath Holding Cerebrovascular Circulation Computer Simulation Adult Cerebral Blood Volume Female Male Spin Labels Reproducibility of Results Image Processing, Computer-Assisted
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Deep learning-based magnetic resonance imaging analysis for chronic cerebral hypoperfusion risk.

Medical physics May 31, 2024
BACKGROUND: Chronic cerebral hypoperfusion (CCH) is a frequently encountered clinical condition that poses a diagnostic challenge due to its nonspecific symptoms.
Image Processing, Computer-Assisted Magnetic Resonance Imaging Chronic Disease Cerebrovascular Disorders Cerebrovascular Circulation Adult Male Middle Aged Deep Learning Retrospective Studies Female Aged Humans
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Accurate and robust segmentation of cerebral vasculature on four-dimensional arterial spin labeling magnetic resonance angiography using machine-learning approach.

Magnetic resonance imaging Apr 16, 2024
Segmentation of cerebral vasculature on MR vascular images is of great significance for clinical application and research. However, the existing cerebrovascular segmentation approaches are limited due to insufficient image contrast and complicated al...
Algorithms Brain Female Cerebrovascular Circulation Adult Spin Labels Cerebral Arteries Male Imaging, Three-Dimensional Image Processing, Computer-Assisted Magnetic Resonance Angiography Humans Machine Learning
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Deep Learning for Perfusion Cerebral Blood Flow (CBF) and Volume (CBV) Predictions and Diagnostics.

Annals of biomedical engineering Feb 24, 2024
Dynamic susceptibility contrast magnetic resonance perfusion (DSC-MRP) is a non-invasive imaging technique for hemodynamic measurements. Various perfusion parameters, such as cerebral blood volume (CBV) and cerebral blood flow (CBF), can be derived f...
Cerebrovascular Circulation Humans Cerebral Blood Volume Brain Adult Female Male Deep Learning Magnetic Resonance Imaging
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Transformer-based deep learning denoising of single and multi-delay 3D arterial spin labeling.

Magnetic resonance in medicine Oct 17, 2023
PURPOSE: To present a Swin Transformer-based deep learning (DL) model (SwinIR) for denoising single-delay and multi-delay 3D arterial spin labeling (ASL) and compare its performance with convolutional neural network (CNN) and other Transformer-based ...
Arteries Image Processing, Computer-Assisted Humans Magnetic Resonance Imaging Brain Cerebrovascular Circulation Deep Learning Spin Labels
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