US Flashcards
What is considered low portal venous velocity? Why is this important?
less than 16 cm/sec; could represent portal hypertension
Schedule for US surveillance of TIPS?
1 month, then every 3 months, then every 6-12 months
What is concerning for stenosis of TIPS?
High intraTIPS velocity >190 or low velocity less than 90; intraTIPS change of over 50cm/sec, Low main portal vein velocity of less than 30
Stenosis? EDV limit
> 100 cm/s is >70% stenosis
Aortic Aneurysm
Requirements for elective surgery
Requirements for following
Elective surgery > 5.5 cm
Followed 3-5.5 cm
Popliteal artery aneurysm defintion?
> 0.7 cm
Aortic Aneurysm
Requirements for elective surgery
Requirements for following
Elective surgery > 5.5 cm
Followed 3-5.5 cm
Renal Artery Stenosis definition?
PSV>180 cm/s; renal a: aortic veloicty ratio > 3.5
Failed Intrauterine Pregnancy, CRL, MSD
CRL > 0.7cm + no heart beat; MSD >2.5 cm + no embryo
Renal kidney size in babies
10 mm is always abnormal