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General consideration & vascular imaging - Coggle Diagram
General consideration & vascular imaging
What is vascular system?
Blood circulatory system
Lymphatic system
What is the vascular disease?
The effect of ischemia depends upon :
Type of artery
Rate of arterial occlusion
State of collateralls
Pt. general condition
Vascular imaging
Doppler / Duplex US scan
Doppler US
Detect bi. flow
analyze velocity waveform
Reflected waves processed into waudible sounds
Duplex scanning
Produce image of tissue anatomy + characterize blood flow
Multidetector CTA
Less invasive than conventional
The most requested in occlusive & aneurysmal dis.
Can cause CIN
MS of artries by software program or 3D image
Conventional arteriography
Visualize arterial tree by X-ray imaging
Inject contrast through accessible artery
3 possible risk categories
DSA
3 steps
X-ray >> to computer
Angiogram >> to computer
Subtraction of 1st image from 2nd image
Artriogram is obtained without srounding structures
MRA
Visualize bl. vessels without contrast injection
Contrast injection >>> more enhanced images