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Normal > Lecture 10 Part 2 > Flashcards

Lecture 10 Part 2 Flashcards

1
Q

Frequency of transducer for GB

A

3.5-5 Mhz

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2
Q

None typical position of GB scan

A

Right lateral decubitus

Upright

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3
Q

Landmarks (4) for GB

A

RUQ
R kidney
main lobular fissure
Trans liver portal vein

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4
Q

Why can fundus be difficult

A

Close proximity to bowel

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5
Q

GB walls may produce

A

Shadows

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6
Q

Reverb can be seen from ___ in GB

A

Artifacts

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7
Q

What can we do to determine if the artifact is real

A

Change position

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8
Q

Once we know artifact is fake how do we get rid of it

A

THI harmonics
Change window
Breath in

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9
Q

When the CHD meets with the cystic duct from the GB the CHD becomes

A

CBD

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10
Q

Normal caliber for CBD /CHD

A

<7mm

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11
Q

indicative problem caliber of CBD

A

> 7mm usually but normal can be seen up to 10mm

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12
Q

Size of GB affected by (2)

A

Age, post sugerey

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13
Q

Do you measure walls of CBD

A

No

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14
Q

___ to____ % of GB is covered in peritoneum

A

50 to 70

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15
Q

Remained of the GB is covered in

A

Adventitial tissue

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16
Q

Anomalies of the GB

A

Intrahepatic gallbladder or parially intrahepatic
Torsion
Agenesis
Ectopic position

17
Q

Intra hepatic gallblader occurs if

A

GB does not migrate to liver surface, very rare

18
Q

Torsion is

A

Gall bladder fully envoloped in visceral peritoneum

Hanging from mesentery

Increase mobility, higher risk for torsion

19
Q

Agenesis

A

Born without ( rare)

20
Q

What are ectopic positions

A

Supraheptic, suprarenal, within abdominal wall, in falciform ligament

21
Q

Normal variants of GB (2)

A

Septate GB

Duplication

22
Q

Septate GB

A

2 or more intercommunicating compartments divided by thin septa

23
Q

What is duplication structure

A

Cystic duct

24
Q

Normal variants commonly seen

A

Phrygian cap
Junctional fold
Hertmanns pouch with stones

25
Q

What is phrygian cap

A

Kink in the fundus, kinks can shadow

Looks like smurfs hat

26
Q

Normal variant of CBD

A

Hepatic artery posterior to it

Normal (21 decks)

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