Midterm Flashcards
(99 cards)
Artifacts that help
Shadowing
Acoustic enhancement - gallbladder
Aorta proximal size normal
2.5 cm
Anatomical structures seen in aorta sonographic veal
Right crus
GE junction
Normal congenital variations of aorta / vessels
3 renal arteries CHA off SMA right hepatic artery off SMA left hepatic artery from left gastric Transposition
Aorta distal normal
1.5
Distal aorta must be under
3 cm
Ivc size range
2.5cm not over 3.7
What artery is posterior to ivc
Right renal artery
What vein is anterior to aorta
Left renal vein
Normal IVC variations
- Multiple veins
- Left renal vein travelling posterior to aorta (normally anterior)
- Double ivc
- Ivc on left
- Part of ivc missing
Split image artifact
Seen only in transverse plane
Aorta x2
Linea Alba, rectus abdominus (sound refracted at muscle fat interface)
Mirror image artifact
Second thin echogenic line superior to diaphragm
Liver tissue seen on opposite side of diaphragm
Speculation reflector
IVC/vessel walls
Diaphragm
Diaphragm normal variants
Diaphragmatic slips: muscular insertions look like masses
Common iliacs normal
0.8-1.0 cm
Ivc and aorta relationship
Aorta posterior to ivc superiorly, goes anterior at level of renals
What renal artery is longer
Right renal artery longer than left
What renal vein anterior to aorta
Left renal vein anterior to aorta
What anatomical structures are seen in aorta
GE junction - superior to celiac trunk and Right crus
Aorta normal variants
- Left hepatic off left gastric
- Common hepatic off SMA
- Right hepatic off SMA
- Three renal arteries (2 right)
- Transposition
Main tributaries of IVC
Inferior phrenic Hepatic veins Renal veins gonadal (right) Lumbar Common iliac
Ivc normal size
2.5 cm, not over 3.7
What stimulates acini cells (exo) to produce digestive enzymes
Cholecysto
Gastrin
Acetyl
Echogenicity of panc
- compared to liver
- how it changes with age
- what about uncinate
Same or brighter
Gets brighter
Uncinate is darker