APPLIED RADIOLOGICAL ANATOMY

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ANATOMY

NEURORADIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
* Typically linked to a thrombus * Temporary interruption in blood supply to an area * Pt may present w/ symptoms of CVA, but resolves quickly (<24 hrs) * No evidence of brain damage or permanent neuro dysfunction * 15% of strokes are preceded by this
A
Transient Ischemic Attack (TIA)
B
Ischemic Stroke
C
Hemorrhagic Stroke
D
None of the above
Explanation: 

Detailed explanation-1: -A transient ischaemic attack (TIA), or mini stroke, happens when there is a temporary disruption in the blood supply to part of the brain. The disruption in blood supply results in a lack of oxygen to the brain. This can cause sudden symptoms like those of a stroke. However, a TIA does not last as long as a stroke.

Detailed explanation-2: -Ischemic stroke is caused by a blood clot that blocks or plugs a blood vessel in the brain. This is the most common type; about 80% of strokes are ischemic. Hemorrhagic stroke is caused by a blood vessel that breaks and bleeds into the brain.

Detailed explanation-3: -A transient ischemic attack (TIA) is caused by a temporary state of reduced blood flow in a portion of the brain. This is most frequently caused by tiny blood clots that temporarily occlude a portion of the brain.

Detailed explanation-4: -If you have a stroke, the blockage stays in place and brain cells die, which causes permanent damage to your brain. In a TIA, the blockage clears, so oxygen and nutrients can return to the brain, and your symptoms resolve.

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