Keywords:
Ischaemia / Infarction, Acute, Contrast agent-intravenous, Computer Applications-Detection, diagnosis, MR, CT, Genital / Reproductive system female, Emergency
Authors:
S. Yagi, K. Koyama, T. Fukushita, H. Fujisawa, T. Kushihashi; Yokohama/JP
DOI:
10.1594/ecr2013/C-2027
Methods and Materials
We retrospectively reviewed the CT and MRI imaging findings in 38 patients with surgically proved ovarian torsion between 2001 and 2012.
The age range of the patients was 11–68years (mean,
36.7 years).
All patients complained of abdominal pain.
The interval between the onset of symptoms and CT or MRI imaging ranged from 1 day to 1 month (mean,
2 days).
The interval between imaging and surgery ranged from 1 to 9 days (mean,
3 days).
Unenhanced CT was performed in 22 patients and contrast enhanced CT (CECT) was performed 22 patients.
CECT alone was performed in 5 patients.
Multidetector CT (4-,
16-,
and 64-channel) was performed with a section collimation of 5-7 mm at 5-7 mm intervals.
A total of 100ml of contrast agent was administrated intravenously at a rate of 1-4ml/s.
The scanning delay was 70 to 90 seconds.
MR was performed in 25 patients.
MR imaging was performed with a 1.5-T and 3.0-T.
Dynamic contrast MRI was performed after intravenous injection of gadolinium injection in 14 patients.
We evaluated both ovarian veins: homogenous or heterogeneous enhancement and retrograde or antegrade.
We also evaluated established findings: fallopian tube thickening,
smooth wall thickening,
lack of contrast enhancement,
ascites,
and uterine deviation.