From: Validation of an arterial tortuosity measure with application to hypertension collection of clinical hypertensive patients
Phantom
Peak Distance Factor Metric
Approximate coils
Peak DFM/2.80 ratio
Pitch 5(2Ï€)
20.95
8
7.48
Pitch 10(2Ï€)
10.76
4
3.84
Pitch 20(2Ï€)
5.45
2
1.95
Pitch 40(2Ï€)
2.80
1
1.00