Radiology Class Flashcards
Tumours can compress the optic chiasm (loss of vision)
Normally, we use contrast in the brain (T/F)
FALSE: it stays the same after contrast
Only pituitary glands and vessels enhance
Wernicke is related to… speech
Broca is related to … speech
- understanding
- motor (knowing how to speak). If there is a problem here: AFASIA
They are connected, if there is a problem in the connection, no habrá congruencia entre lo que dice y lo que entiende.
Representación esquemática HOMUNCULO MOTOR
A lesion in this area might cause, problems in the contralateral… (hand/leg)
HAND (more lateral)
Broca and Wernicke areas are only located in the… hemisphere
DOMINANT
With MRI we can do functional imaging and identify the different areas of the brain (T/F)
True: to identify primary motor areas of the hand for example, if we have a tumour we do not see it.
We need the patient to cooperate, to see which area of the brain controls the movement (either speaking for Broca, or moving something for motor cortex).
What can we see in this image?
A fetal MRI for CNS evaluation
What is the arrow pointing at?
Cerebellar tonsils
Name the structure
Hypophisis
Hypophisis
4th ventricle
¿Qué técnica observamos?
RESONANCIA MAGNÉTICA
For spinal cord imaging, we mainly use…
MRI (we see almost nothing with CT)
What can we see in this image?
Iodinated contrast CT
Techniques used in vascular radiological anatomy of the head and neck
- Doppler ultrasound: mostly for extracranial arteries (carotid arteries in the neck)
- Conventional angiography
- CT angiography (CTA, with iv contrast)
- MRI angiography (MRA)
- No contrast: TOF and phase contrast (PC)
- With iv contrast.
Technique used
Doppler ultrasound
Technique used
Direct arteriography (contrast is used), only for treatment (for stenosis or thrombus)
IT IS NOT AN STATIC IMAGE, BUT A DYNAMIC STUDY
For intracranial vessels, we usually use…
CT (mostly) with contrast, and MRI
Cerebral arterial irrigation divided into:
- anterior circulation: …
- posterior circulation: …
Both originate from arterial branches of the …
- CAROTID AXIS
- VERTEBRO-BASILAR AXIS
aortic arch.
Vertebral arteries enter in transverse processes of…
C6
Why does the artery have this form?
So that it does not get compressed during rotation.
Most important type of stroke occurs in…
Medial cerebral artery
Suture we mostly see in babies:
METOPIC SUTURE
In this image we can see the…
Sylvian sulcus
INTERNAL AUDITORY CANAL RADIOLOGY
THALAMUS IN ULTRASOUND
CN … pass through superior orbital fissure
III, IV, VI
Trigeminal nerve passes through…
Foramen ovale
Through internal auditory canal … CN
pass VII, VIII
CN … pass through yugular foramen
IX, X, XI
XI CN passes through…
Hypoglossal foramen
Patients with memory problems might have a malformation in … gyrus
CINGULATE
