nvk.info

Dating ischemic stroke radiographics

Actual
From: shah2412
Category: Estonia
Added: 04.04.2021
Share this video:
Diffusion-weighted MR imaging DWI is a technique used to assess the random Brownian motion of water molecules within a certain voxel of tissue. In other words, DWI is used to determine the ease of molecular diffusivity of water within a tissue. Many pathologies cause restricted extracellular diffusion of water protons including infarction, cytotoxic edema, high cellularity within tissue, viscous fluid, demyelination, and metabolic disturbances. Restricted diffusion is seen as high-signal intensity on DWI with corresponding reduced apparent diffusion coefficient ADC values. ADC is a measurement of the diffusion of water molecules in a given tissue. DWI is expressed with a b-value that is dependent on the characteristics of a sequence.

Cardiac CT Imaging for Ischemic Stroke: Current and Evolving Clinical Applications

CT for Treatment Selection in Acute Ischemic Stroke: A Code Stroke Primer

Please wait. Unable to process the form. Check for errors and try again. Thank you for updating your details.

Imaging of cerebral ischemic edema and neuronal death

CT has the advantage of being available 24 hours a day and is the gold standard for hemorrhage. Hemorrhage on MR images can be quite confusing. The reason we see ischemia on CT is that in ischemia cytotoxic edema develops as a result of failure of the ion-pumps.
Concept of Penumbra Once vascular supply to the brain has been compromised, there is a window of opportunity for reversing ischemic symptoms depending upon the level to which the blood flow has dropped. Ischemic brain tissue can functionally be divided into three components — infarct core, penumbra, and oligemic region Fig. When a cerebral artery is occluded, a core of brain tissue with severe perfusion deficit dies rapidly while the surrounding brain tissue ischemic penumbra with moderately reduced blood flow that may have lose electrical activity. Tissue in the penumbra may be salvageable with reperfusion; otherwise, the tissue in penumbra will progress to infarction.

Most Viewed:

Comment on the video

Click on the image to refresh the code if it is illegible
recondite 17.03.2021
i bet the expression on your face would change with you bouncing on my cock, fantastic pic.
drawten 17.03.2021
superbe en pleine nature ! ♥
jpooler27 18.03.2021
girl hot
kaptur 19.03.2021
Nice cream pie!
shane175 19.03.2021
you are very sexy !
daix 19.03.2021
You did not have to come into the shower to give me the towel!
xredmanx 20.03.2021
I wanna eat you out and make you cum
mintylover 21.03.2021
the power is yours
Nuance6 21.03.2021
Let's fuck!
Trinwain 23.03.2021
You are a gift to this earth. My goodness. Thanks.
mrparks88 23.03.2021
heiГџ!
Mrscarecrow333 24.03.2021
le reve de se faire lГ©cher par cette langue!
jersey76 26.03.2021
Your ass's got talent!
PHMims 26.03.2021
Wanna gently caress and licking your nice open pussy

nvk.info

nvk.info