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Original ArticleOpen Access
Sonographic Morphology Scores (SMS) for Differentiation Between Benign and Malignant Ovarian Tumor
Wanapirak C 
,
Nimitwongsakul S ,
Tongsong T
,
Nimitwongsakul S ,
Tongsong T The objectives of this cross-sectional descriptive analysis are to determine the sensi-
tiVIty and specificity of sonographic morphology scores (SMS) in distinguishing between
benign and malignant ovarian tumors and to determine the best cut-off score. The study was
conducted at the Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai
University. Two hundred and forty eight nonpregnant patients scheduled for elective surgery
for ovarian tumors between
1
uly, 1996 and March, 1998 were recruited into the study and were
sonographically examined in 24 hours of surgery by the same sonographer to evaluate inner
wall structure, wall thickness, septum, echogenicity and score of the tumors. The final diagnosis
was pathologically confirmed as the gold standard.
It
was found that the score of 9 from reciever
operating characteristic curve was the best cut-off score, giving the sensitivity of 93.1 per cent
and specificity of 75.6 per cent. In conclusion, the SMS system is probably useful in distinguishing
ovarian malignancy from benign ovarian tumor.
Key word : Ovarian Tumor, Sonographic Morphology Scores, Ultrasound, Tumor Differentiation
tiVIty and specificity of sonographic morphology scores (SMS) in distinguishing between
benign and malignant ovarian tumors and to determine the best cut-off score. The study was
conducted at the Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai
University. Two hundred and forty eight nonpregnant patients scheduled for elective surgery
for ovarian tumors between
1
uly, 1996 and March, 1998 were recruited into the study and were
sonographically examined in 24 hours of surgery by the same sonographer to evaluate inner
wall structure, wall thickness, septum, echogenicity and score of the tumors. The final diagnosis
was pathologically confirmed as the gold standard.
It
was found that the score of 9 from reciever
operating characteristic curve was the best cut-off score, giving the sensitivity of 93.1 per cent
and specificity of 75.6 per cent. In conclusion, the SMS system is probably useful in distinguishing
ovarian malignancy from benign ovarian tumor.
Key word : Ovarian Tumor, Sonographic Morphology Scores, Ultrasound, Tumor Differentiation
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