measurements & dates

Amylase rises rapidly within __-__ hours with acute pancreatitis.

3 - 6

Lipase increases (1)__-__ hours, peaks at (2)__ hours, and remains elevated for (3)__-__ days.

1. 3 - 6

2. 24

3. 8 - 14

When is the main pancreatic duct considered dilated?

Greater than 2 mm

Pancreatic serous cystadenomas measure how large?

Less than 2 cm

Mucinous cystic neoplasms measure how large?

Greater than 2 cm

Adenocarcinoma is seen in men older than __.

55

What is the normal length measurement of the GB?

8 - 12 cm

How large can the CBD measure after a cholecystectomy?

10 mm

What is the general rule of the CBD with every decade of life past 50?

Increased diameter by 1 mm

At what measurement will GB polyps be considered malignant?

Greater than 10 mm

Primary biliary cirrhosis is followed up every (1)___ months to look for hepatocellularcarcinoma.

6

Biliary atresia occurs when jaundice persists beyond __ days of life.

14

Symptoms of a choledochal cyst can occur before what age?

10

What is the normal width measurement of the GB?

2.5 - 4 cm

The biliary ducts are considered normal when they measure…

Less than 2 mm

1. With biliary ascariasis, the worm can range __-__ cm in length.

2. And __ cm in diameter.

1. 20 - 30 cm

2. 6 cm

What should a normal GB wall measure?

Less than 3 mm

The GB wall is considered thickened when it measures what?

Greater than 3 mm

The GB lumen is considered distended when it measures what?

Greater than 5 mm

A GB is considered to have hydrops when it measures how large?

Greater than 5 cm

What is the overall survival rate for GB carcinoma?

Less than 5% chance

What should a normal CBD measure? (If the patient is younger than 60)

Less than or equal to 6 - 7 mm

What measurement considers the MPV dilated?

Greater than 1.3 cm or 13 mm

How large can a hepatoblastoma range when diagnosing?

10 - 12 cm

Velocity flow of a normal MPV should be what?

20 - 40 cm/s

Patients with portal HTN or cirrhosis will have a doppler waveform of what?

Below 20 cm/s

The hepatic artery provides __% of blood to the liver.

25%

The MPV provides __% of blood to the liver.

75%

A hepatic adenoma is considered very rare. It’ll only be seen in __% of the population.

0.5%

What percentage of patients with Infantile hepatic hemangioma have CHF?

50 - 60%

Majority of Infantile hepatic hemangioma cases are diagnosed within the first __ months of life.

6

Approximately __-__% of hepatic adenoma cases present with single adenoma.

70 - 80%

What percentage of patients with cirrhosis will develop HCC?

80%

The MPV is considered dilated when it is greater than __ mm/cm.

13 / 1.3

Portal flow is hepatofugal or slow when it measures below __ cm/s.

15

What should the normal pressure measure in the portal vein?

5 - 10 mmHg

A portal vein measuring how large suggests portal HTN? 

Greater than 13 mm/1.3 cm

What is the velocity of a normal TIPS doppler waveform?

Velocity 90 - 190 cm/s

How much will an abnormally high shunt velocity measure?

Greater than 190 cm/s

US is good at imaging cysts greater than __ cm. 

1

A normal portal vein will have a velocity between __-__ cm/s.

20 - 40 cm/s

Wilson’s Disease can be diagnosed between what age range?

5 - 35

A cirrhotic hepatic artery will have a resistive index (1)________ than (2)__.

1. Greater

2. 0.8

After a GORE Viatorr endoprosthesis is used for a TIPS procedure, how many days will it be until an US can be performed? 

3 - 5

What should the RI range between for a normal hepatic artery?

0.5 - 0.8

How much will an abnormally low shunt velocity measure?

Less than 50 cm/s

Hepatitis is considered chronic when it’s occurred for more than __ months. 

6

TIPS will be routinely checked every __ months.

6

A cirrhotic hepatic artery will have an RI greater than __. 

0.8

List the 2 localized diameter increases that will label an aneurysm, ‘AAA.’ 

• Greater than 3 cm

• Greater than 1½ times the diameter of the proximal aorta

What abnormal velocity is associated with celiac axis compression? 

> 200 cm/s

What is the velocity of a normal celiac axis with inspiration?

< 200 cm/s

The criteria for a fasting US for significant 70% mesenteric stenosis will show what kind of PSVs? (Be specific on which vessel)

• SMA > 275 cm/s

• Celiac artery > 200 cm/s

List the 2 reliable indicators for a 70% stenosis.

• SMA > 275 cm/s

• Celiac artery > 200 cm/s

At which age can aneurysms occur? 

Greater than 65

Rupture of an AAA is catastrophic with a mortality rate of __%.

50%

How large would an aneurysm measure to only have a follow up every 6 months? 

Less than 5 cm

How large would an aneurysm measure to be at risk for rupture? 

Greater than 5 cm

How large would an aneurysm measure to be advised for a repair or surgical intervention? 

Greater than 5.5 cm

A ruptured aneurysm is considered a surgical emergency with a high mortality rate.

What is the percentage of mortality for a ruptured aorta?

50%