| Diagnostic Criteria for Venous Reflux | |
|---|---|
| Deep Superficial Perforator | |
| Normal | <1 sec <0.5 sec <0.35 sec |
| Abnormal | >1 sec >0.5 sec >0.35 sec |
'Size, G (2013). Inside Ultrasound Vascular Reference Guide. Inside Ultrasound, Incorporated' – Purchase Now
| Diagnostic Criteria for Venous Reflux | |
|---|---|
| Location | Time |
| Deep veins | ≥ 1.0 second |
| GSV, SSV | 0.5 seconds |
| Perforating veins | 0.35 seconds |
| Longer durations observed in supine patients | |
| Above values apply for patient in a standing position | |
Daigle, R (2009). Techniques in noninvasive vascular diagnosis: An encyclopedia of vascular testing 3rd edition. Littleton, CO: Summer Publishing.
| Abnormal GSV diameters | |
|---|---|
| Location | Diameter |
| SFJ | >9 mm |
| Thigh | >7.5 mm |
| Calf | >5 mm |
| Longer durations observed in supine patients | |
| Above values apply for patient in a standing position | |
Daigle, R (2009). Techniques in noninvasive vascular diagnosis: An encyclopedia of vascular testing 3rd edition. Littleton, CO: Summer Publishing.