Table 4 |
||||
|
Sensitivity and specificity of non-enhanced and enhanced Doppler US for the detection of RAS in 60 arteries |
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|
a) Non-enhanced |
||||
|
|
||||
|
Sensitivity |
Specificity |
PPV |
NPV |
|
|
|
||||
|
RRA (<3,0) |
56,2% |
89,2% |
88% |
44% |
|
PSV (<150) |
69,7% |
64,9% |
75% |
45% |
|
RI (<0,80) |
82,9% |
56,8% |
74% |
51% |
|
|
||||
|
b) Enhanced |
||||
|
|
||||
|
Sensitivity |
Specificity |
PPV |
NPV |
|
|
|
||||
|
RRA (<3,0) |
33,3% |
97,3% |
95% |
40% |
|
PSV (<150) |
61,9% |
64,9% |
72% |
42% |
|
RI (<0,80) |
76,2% |
43,2% |
66% |
42% |
|
|
||||
|
RRA: ratio renal/aortic PSV: peak sistolyc velocity(cm/s) RI: resistive index PPV = positive predictive value, NPV = negative predictive value RAS = Renal artery stenosis; US = ultrasonography |
||||
|
Teixeira et al. Journal of Negative Results in BioMedicine 2004 3:3 doi:10.1186/1477-5751-3-3 |
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