Hi doctor,
Does MRA show arterioles? Does CTA show small vessels? Can SPECT tell microvasculitis from vasospasm in microvessel? Do arterioles and capillaries feel pain?
Hi,
Welcome to icliniq.com.
I have read through your query in detail. Please find my observations below.
- A machine having high power magnet might be able to show arterioles in MRA (magnetic resonance angiography).
- A CTA (Computed tomography angiography) might show small vessels but not exactly arterioles.
- It is difficult to differentiate perfusion abnormalities in microvasculitis from that of vasospasm by SPECT (single-photon emission computed tomography).
- Pain is a sensation that is understood by the brain and it can have a source in arterioles and capillaries.
For further information consult an interventional radiologist online --> https://www.icliniq.com/ask-a-doctor-online/interventional-radiologist
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