TY - JOUR
T1 - Duplex ultrasound assessment of venous diameters, peak velocities, and flow patterns
AU - Moneta, Gregory L.
AU - Bedford, Geri
AU - Beach, Kirk
AU - Strandness, D. Eugene
N1 - Funding Information:
Supported by National Institutes of Health grant No. 36905.
PY - 1988/9
Y1 - 1988/9
N2 - Duplex ultrasound was used to study the diameters, flow patterns, and peak blood flow velocities of the common femoral vein (CFV) in 12 normal subjects (mean age 35 years). Each subject was supine and non-weight-bearing on a tilt table and rotated in 10-degree increments from -10 degrees (head down) to +30 degrees (head up). Cross-sectional B-mode image was used to monitor continuously CFV diameter for 5 minutes in each position. Doppler flow patterns were recorded in longitudinal axis; heart rate and respiratory movements were also noted. CFV flow was affected by respiratory and cardiac events. At -10 degrees flow was primarily related to cardiac events, with flow increasing during diastole. At +30 degrees flow varied minimally with the cardiac cycle and was primarily respiration dependent, stopping at peak inspiration. Proceeding from -10 to +30 degrees the mean maximal CFV diameter corrected for body surface area increased 92% (0.47 ± 0.11 cm/m2 to 0.90 ± 0.16 cm/m2, p < 0.001), whereas peak flow velocity decreased from 41 ± 10 cm/sec to 13 ± 5 cm/sec, p < 0.001. There was a linear, inverse relationship between mean peak velocity and mean corrected diameter, r = -0.99. The study confirms the multiple influences on venous flow patterns and establishes a quantitative relationship between venous diameters and flow velocities.
AB - Duplex ultrasound was used to study the diameters, flow patterns, and peak blood flow velocities of the common femoral vein (CFV) in 12 normal subjects (mean age 35 years). Each subject was supine and non-weight-bearing on a tilt table and rotated in 10-degree increments from -10 degrees (head down) to +30 degrees (head up). Cross-sectional B-mode image was used to monitor continuously CFV diameter for 5 minutes in each position. Doppler flow patterns were recorded in longitudinal axis; heart rate and respiratory movements were also noted. CFV flow was affected by respiratory and cardiac events. At -10 degrees flow was primarily related to cardiac events, with flow increasing during diastole. At +30 degrees flow varied minimally with the cardiac cycle and was primarily respiration dependent, stopping at peak inspiration. Proceeding from -10 to +30 degrees the mean maximal CFV diameter corrected for body surface area increased 92% (0.47 ± 0.11 cm/m2 to 0.90 ± 0.16 cm/m2, p < 0.001), whereas peak flow velocity decreased from 41 ± 10 cm/sec to 13 ± 5 cm/sec, p < 0.001. There was a linear, inverse relationship between mean peak velocity and mean corrected diameter, r = -0.99. The study confirms the multiple influences on venous flow patterns and establishes a quantitative relationship between venous diameters and flow velocities.
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U2 - 10.1016/0741-5214(88)90280-7
DO - 10.1016/0741-5214(88)90280-7
M3 - Article
C2 - 3047442
AN - SCOPUS:0023732548
SN - 0741-5214
VL - 8
SP - 286
EP - 291
JO - Journal of vascular surgery
JF - Journal of vascular surgery
IS - 3
ER -