Retrospective Cohort Study
Copyright ©The Author(s) 2021.
World J Clin Cases. Apr 16, 2021; 9(11): 2446-2457
Published online Apr 16, 2021. doi: 10.12998/wjcc.v9.i11.2446
Table 7 Stigmata of recent hemorrhage identification in extravasation-positive cases by contrast-enhanced computed tomography
SRH identification rate (%)
Extravasation-positive cases
Extravasation-negative cases
All SRH
Active bleeding of SRH
Adherent clot of SRH
NBVV of SRH
All CDB52.2 (35/67)35.8 (24/67)10.4 (7/67)6.0 (4/67)5.2 (6/115)
Urgent CT group (≤ 4 h)66.0 (31/47)46.8 (22/47)12.8 (6/47)4.5 (3/47)7.5 (4/53)
Elective CT group (> 4 h)20.0 (4/20)10.0 (2/20)5.0 (1/20)5.0 (1/20)3.2 (2/62)
P value< 0.01< 0.010.450.830.54
Concordance rate of extravasation-positive site to SRH identification site (%)
All SRHActive bleeding of SRHAdherent clot of SRHNBVV of SRH
All CDB91.4 (32/35)91.7 (22/24)85.7 (6/7)100 (4/4)
Urgent CT group (≤ 4 h)90.3 (28/31)90.9 (20/22)83.3 (5/6)100 (3/3)
Elective CT group (> 4 h)100 (4/4)100 (2/2)100 (1/1)100 (1/1)