Interpretation: Native Arteries Flashcards
1
Q
normal
A
doppler signals are triphasic, change to biphasic is signif. , however, some pt normally have biphasic flow without evidenve disease
2
Q
abn. findings
compare stenotic PSV to pre stenotic PSV
2:1 ratio
A
> 50% dia reduction
3
Q
abn. findings
compare stenotic PSV to pre stenotic PSV
4:1 ratio
A
> 75% dia reduction
4
Q
abn. findings
compare stenotic PSV to pre stenotic PSV
> 400 cm/sec PSV
A
> 75% dia reduction
5
Q
never accept the value of
A
numbers alone
6
Q
post stenotic turbulence should or shouldn’t be present
A
should
