Radiation dose reduction in perfusion CT imaging of the brain: A review of the literature

AE Othman, S Afat, MA Brockmann… - Journal of …, 2016 - Elsevier
Perfusion CT (PCT) of the brain is widely used in the settings of acute ischemic stroke and
vasospasm monitoring. The high radiation dose associated with PCT is a central topic and …

Convolutional neural network-based robust denoising of low-dose computed tomography perfusion maps

VS Kadimesetty, S Gutta, S Ganapathy… - … on Radiation and …, 2018 - ieeexplore.ieee.org
The low-dose computed tomography (CT) perfusion data has low signal-to-noise ratio
resulting in derived perfusion maps being noisy. These low-quality maps typically requires a …

Basis and current state of computed tomography perfusion imaging: a review

D Zeng, C Zeng, Z Zeng, S Li, Z Deng… - Physics in Medicine …, 2022 - iopscience.iop.org
Computed tomography perfusion (CTP) is a functional imaging that allows for providing
capillary-level hemodynamics information of the desired tissue in clinics. In this paper, we …

An efficient iterative cerebral perfusion CT reconstruction via low-rank tensor decomposition with spatial–temporal total variation regularization

S Li, D Zeng, J Peng, Z Bian, H Zhang… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
Cerebrovascular diseases, ie, acute stroke, are a common cause of serious long-term
disability. Cerebral perfusion computed tomography (CPCT) can provide rapid, high …

Robust low-dose CT perfusion deconvolution via tensor total-variation regularization

R Fang, S Zhang, T Chen… - IEEE transactions on …, 2015 - ieeexplore.ieee.org
Acute brain diseases such as acute strokes and transit ischemic attacks are the leading
causes of mortality and morbidity worldwide, responsible for 9% of total death every …

[HTML][HTML] STIR-Net: Deep Spatial-Temporal Image Restoration Net for Radiation Reduction in CT Perfusion

Y Xiao, P Liu, Y Liang, S Stolte, P Sanelli… - Frontiers in …, 2019 - frontiersin.org
Computed Tomography Perfusion (CTP) imaging is a cost-effective and fast approach to
provide diagnostic images for acute stroke treatment. Its cine scanning mode allows the …

[HTML][HTML] Decision criteria for large vessel occlusion using transcranial Doppler waveform morphology

SG Thorpe, CM Thibeault, N Canac, SJ Wilk… - Frontiers in …, 2018 - frontiersin.org
Background: The current lack of effective tools for prehospital identification of Large Vessel
Occlusion (LVO) represents a significant barrier to efficient triage of stroke patients and …

[HTML][HTML] Impact of Noise Level on the Accuracy of Automated Measurement of CT Number Linearity on ACR CT and Computational Phantoms

C Anam, R Amilia, A Naufal, H Sutanto… - Journal of Biomedical …, 2023 - ncbi.nlm.nih.gov
Background: Methods for segmentation, ie, Full-segmentation (FS) and Segmentation-
rotation (SR), are proposed for maintaining Computed Tomography (CT) number linearity …

Improvement of image quality and radiation dose of CT perfusion of the brain by means of low-tube voltage (70 KV)

Z Li, H Li, K Zhang, W Li, X Chen, B Wu, B Song - European radiology, 2014 - Springer
Objectives To investigate the feasibility of 70 kV cerebral CT perfusion by comparing image
quality and radiation exposure to 80 kV. Methods Thirty patients with suspected cerebral …

Effects of radiation dose reduction in Volume Perfusion CT imaging of acute ischemic stroke

AE Othman, C Brockmann, Z Yang, C Kim, S Afat… - European …, 2015 - Springer
Purpose To examine the influence of radiation dose reduction on image quality and
sensitivity of Volume Perfusion CT (VPCT) maps regarding the detection of ischemic brain …