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. 2020 Nov;41(11):2107–2113. doi: 10.3174/ajnr.A6766

Table 4:

Comparison of RFV and nRFVa

Parameters CF Group (n = 11) NF Group (n = 16) P Valueb
RFV4 (mm3) 553.4 ± 616.5 (128.4–2264.0) 358.9 ± 358.5 (0–1307.0) .42
RFV6 (mm3) 526.3 ± 552.9 (123.5–2036.0) 331.8 ± 338.0 (0–1230.0) .31
RFV8 (mm3) 495.8 ± 486.9 (118.6–1800.0) 262.5 ± 290.1 (0–1070.0) .18
RFV10 (mm3) 454.9 ± 406.1 (111.0–1519.0) 210.8 ± 259.9 (0–913.2) .10
RFV12 (mm3) 399.5 ± 304.1 (103.6–1174.0) 175.2 ± 229.6 (0–753.6) .05
RFV14 (mm3) 329.7 ± 201.5 (93.9–833.0) 140.1 ± 196.3 (0–586.2) .02
RFV16 (mm3) 250.6 ± 119.5 (82.7–463.3) 110.2 ± 159.8 (0–526.4) .02
RFV18 (mm3) 181.5 ± 99.2 (67.7–406.4) 84.4 ± 124.6 (0–432.3) .03
RFV20 (mm3) 142.9 ± 106.7 (27.7–382.3) 58.3 ± 85.8 (0–292.0) .04
nRFV4 0.97 ± 0.02 (0.90–0.99) 0.84 ± 0.27 (0–0.99) .07
nRFV6 0.95 ± 0.05 (0.81–0.98) 0.77 ± 0.29 (0–0.97) .02
nRFV8 0.92 ± 0.07 (0.72–0.97) 0.64 ± 0.33 (0–0.96) .004
nRFV10 0.88 ± 0.10 (0.61–0.96) 0.54 ± 0.37 (0–0.95) .002
nRFV12 0.82 ± 0.14 (0.47–0.94) 0.46 ± 0.37 (0–0.93) .001
nRFV14 0.74 ± 0.20 (0.33–0.92) 0.37 ± 0.34 (0–0.90) .001
nRFV16 0.64 ± 0.26 (0.19–0.90) 0.29 ± 0.31 (0–0.85) .004
nRFV18 0.53 ± 0.30 (0.07–0.87) 0.24 ± 0.28 (0–0.79) .02
nRFV20 0.43 ± 0.31 (0.03–0.82) 0.17 ± 0.23 (0–0.71) .03

Note:—RFV4, RFV6, RFV8, RFV10, RFV12, RFV14, RFV16, RFV18, and RFV20 indicate intra-aneurysmal RFV with an average flow velocity of >4, 6, 8, 10, 12, 14, 16, 18, and 20 cm/s, respectively; and nRFV4, nRFV6, nRFV8, nRFV10, nRFV12, nRFV14, nRFV16, nRFV18, and nRFV20 indicate intra-aneurysmal nRFV with an average flow velocity of >4, 6, 8, 10, 12, 14, 16, 18, and 20 cm/s, respectively.

a

Data are expressed as mean ± SD (range).

b

P values were estimated using the Welch t test between CF and NF groups.