Transvaginal ultrasonography combined with pelvic examination in the diagnosis of ovarian endometrioma.
2000
ANNA WONGKULARB, M.Sc.*,
ARAM ROJANASAKUL, M.D.*
The aim of this retrospective study was to evaluate the efficacy of TVS and TVS combined
with
~elvic
examin<(tion for the diagnosis of ovarian endometrioma. Three hundred and five
ovarian masses of
244
patients with either pre-operative or post-operative diagnosis of ovarian
tumor and received TVS between January I,
1996
and December
31, 1998
were included in the
study. Of
305
masses,
221
endometriomas of
164
patients were diagnosed histologically. The
efficacy of TVS was
84.9
per cent with a sensitivity of
92.3
per cent and specificity of
70.2
per cent.
LR+ and LR-were
3.1
and
0.1
respectively. The combination of TVS and pelvic examination
with either positive test had a higher sensitivity
(98.8%)
but lower specificity
(26.6o/c).
This
combination dramatically improved NPV
(97.5%)
and LR-
(0.05),
whereas, the combination
with both positive tests had a sensitivity of
78.1
per cent, and specificity of
81.5
per cent. LR+
and LR-were not different from those using TVS alone.
In conclusion, the study has shown the role of TVS in the diagnosis of ovarian endo-
metrioma. The combination of TVS and pelvic examination may be useful in ruling out the
disease. However, a further prospective study should be performed to confirm the efficacy of the
combination.
Key word
: Endometrioma, Diagnosis, Transvaginal Sonography, TVS, Pelvic Examination
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