Cerebral Arteriogram Q

[Kluver_Bucy]

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Does a cerebral arteriogram only show one side by convention? Does the picture below only show the left side of the patient? I'm confused. Also, is the most lateral part considered the middle cerebral artery in this picture. Thanks

http://www.rctradiology.com/icons/Cereba1.jpg

 

[Kluver_Bucy]

If someone smart could list the artery names from the bottom of the picture and its branches it would be very helpful for everyone else confused on how to read this stuff.

 

[Idiopathic]

Well, the other side would fill through collateral flow (i.e. circle of willis) and i believe you only really see the other side if there is a distal obstruction. Remember, the dye is injected in one side and the flow shouldn't mix. If there is no increase in pressure on one side, then the other wont fill collaterally.

All I would really worry about anatomically is that this is the internal carotid branching into the MCA and the ACA.

The PCA is not visualized, why? (Where does it come from?)

Understand what the lesion would do (i.e. this is probably showing a thalamic or ganglia lesion, I would guess) Just remember in general terms what the MCA supplies (with its branches), etc.

 

[katieb]

From bottom up:

1. Vertical segment: Internal carotid artery
2. Left turn segment: Continuation of internal carotid (petrous part)
3. Turns and goes vertical again: Internal carotid artery
4. That little nick on the right: Cavernous part of internal carotid artery
5. Just before the bifurcation: Cerebral part of internal carotid artery
6. At the the bifurcation:
Left side, then going vertically up in the middle: Anterior cerebral artery
Right side, then going laterally and branching all over: Middle cerebral artery

(By right and left, I mean on the picture, not anatomically.)

 

[Kluver_Bucy]

From bottom up:

1. Vertical segment: Internal carotid artery
2. Left turn segment: Continuation of internal carotid (petrous part)
3. Turns and goes vertical again: Internal carotid artery
4. That little nick on the right: Cavernous part of internal carotid artery
5. Just before the bifurcation: Cerebral part of internal carotid artery
6. At the the bifurcation:
Left side, then going vertically up in the middle: Anterior cerebral artery
Right side, then going laterally and branching all over: Middle cerebral artery

(By right and left, I mean on the picture, not anatomically.)

Thanks Katie and Idiopathic.

One more question for anyone that can help. How would you know if you are looking at a vertebral angiorgram vs carotid angiogram? Is there a good way to tell right off the bat, by just looking at something in the picture? For example, in the picture on the link how did you know it wasn't vertebral artery?

 

[allylz]

HIGHLY recommend for neuroanatomy that you download the program
Functional Neuro
located here:
http://www.utoronto.ca/neuronotes/

it's SO helpful - it has arteriograms, MRIs, you name it, and it's a great format.
it even talks to you and quizzes you
here is antoher helpful link for pathways:
http://medlib.med.utah.edu/kw/resources.html

 

[allylz]

p.s. the vertebral artery is midline, that's how you know your picture is of internal carotid.
plus, the vertebral art. would then go on to the basilar and make a very characteristic pattern turning into the circle of Willis. i'm not sure how to describe it better but get Functional Neuro and you will understand.