Additional diagnostic value of diffusion-weighted Magnetic Resonance Imaging to conventional Magnetic Resonance Imaging in local staging of primary uterine cervical cancer
Abstract
Objective: Magnetic resonance (MR) imaging is a helpful modality for detecting and staging gynecological cancers. Diffusion-weighted imaging (DWI) could improve the accuracy rates of MR imaging. The aim of this study was to assess the additional diagnostic value of DWI over conventional MR imaging in assessing the local extent of primary cervical cancer.
Method: Forty patients with primary uterine cervical cancer were enrolled in the study, prospectively. All MR examinations were performed using a 1.5 Tesla Unit MR with a body coil. Sagittal and axial T2-weighted MR images, sagittal and axial DWI (at b values of 0, 500,1000 s/mm2) with ADC maps were obtained. The images were evaluated by two different readers independently. The degree of the interobserver agreement between the radiologists was assessed with kappa statistics.
Results: Mean age of the study population was 50.7±11.1 years. Kappa values ranged from 0.76 to 1 for both readers indicating excellent agreement. Accuracy rates were as follows for reader 1 respectively with conventional and conventional plus DWI; stromal invasion 0.92/0.95; parametrial invasion 0.87/0.92; vaginal invasion 0.87/0.92; pelvic sidewall invasion 0.90/0.97. Accuracy rates were as follows for reader 2 respectively with conventional and conventional plus DWI images; stromal invasion 0.90/0.95; parametrial invasion 0.87/0.92; vaginal invasion 0.87/0.97; pelvic sidewall invasion 0.90/0.95.
Conclusions: MR provides satisfactory accuracy rates in the evaluation of the local extent of uterine cervical carcinoma, and adding DWI improves the diagnostic performance of conventional MR.
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Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Sağlık Kurumları Yönetimi
Bölüm
Araştırma Makalesi
Yazarlar
Hulya Aslan
*
0000-0002-7138-246X
Türkiye
Nefise Cagla Tarhan
Türkiye
Mehmet Coskun
Türkiye
Asuman Nihan Haberal
Türkiye
Ali Ayhan
Türkiye
Yayımlanma Tarihi
30 Haziran 2019
Gönderilme Tarihi
17 Nisan 2019
Kabul Tarihi
15 Mayıs 2019
Yayımlandığı Sayı
Yıl 2019 Cilt: 41 Sayı: 2