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ORIGINAL ARTICLE
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Comparison of magnetic resonance imaging and ultrasonography in tumor size: Evaluation of equality in advanced cervical cancer patients


1 Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
2 Department of Radiology, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia

Correspondence Address:
Sigit Purbadi,
Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta
Indonesia
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Source of Support: None, Conflict of Interest: None

Background: Cervical cancer is the fourth most common cancer among women worldwide. In Indonesia, cervical cancer is the second most frequent disease related to cancer. Based on staging system criteria, clinical findings are the main criteria to determine cervical cancer stage. In the revised version of the Federation of Gynecology and Obstetrics staging system criteria for cervical cancer, radiological examination for pretreatment evaluation in gynecological malignancies has been used in routine modalities. Magnetic resonance imaging (MRI) and ultrasonography (USG) are commonly used in the presurgery determination of tumor size and the follow-up of cervical cancer patients. Tumor size determines cancer stage which influences the treatment and the survival. The equality of diagnostic accuracy was compared for MRI and ultrasound in this study for tumor size evaluation of cervical cancer patients. Methods: This was a prospective study including 195 patients with cervical cancer Stage IIIB in Dr. Cipto Mangunkusumo Hospital from 2016 to 2018. The tumor sizes and stages of cervical cancer were assessed on MRI and ultrasound. This study evaluated diagnostic accuracy between MRI and US. The sensitivity and specificity were compared by using McNemar test. Results: The result of the study showed that from 195 patients, 76 patients fulfilled the study inclusion criteria. There is a significant difference in assessing tumor size in cervical cancer patients between ultrasound and MRI (mean, 1.72 cm; P < 0.0001). US had 82% sensitivity, 88% specificity, and 82% diagnostic accuracy (P = 0.003, McNemar test). Conclusion: Ultrasound examination showed a comparable accuracy to MRI for assessing tumor size in cervical cancer. US is an affordable and feasible diagnostic staging tool with accuracy comparable to MRI.


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    -  Purbadi S
    -  Novianti L
    -  Tanamas G
    -  Siregar TP
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