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First published online August 6, 2007
British Journal of Radiology (2007) 80, 609-616
© 2007 British Institute of Radiology
doi: 10.1259/bjr/13992649
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Texture analysis of perimenopausal and post-menopausal endometrial tissue in grayscale transvaginal ultrasonography

G Michail, MD 1 A Karahaliou, MSC 2 S Skiadopoulos, PHD 2 C Kalogeropoulou, MD, PHD 3 G Terzis, MD 3 I Boniatis, MSC 2 L Costaridou, PHD 2 G Kourounis, MD, PHD 1 and G Panayiotakis, PHD 2

1 Department of Obstetrics and Gynecology, 2 Department of Medical Physics, 3 Department of Radiology, School of Medicine, University of Patras, 265 00 Patras, Greece


Figure 1
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  		Figure 1. Histogram illustrating the distribution of malignant and benign histological diagnoses with respect to endometrial thickness.

 

Figure 2
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  		Figure 2. (a) Original image depicting a case of well-differentiated endometrial adenocarcinoma of endometrioid type. (b) The corresponding processed image illustrates more distinctly the disruption of the subendometrial halo.

 

Figure 3
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  		Figure 3. (a) Original image depicting derangement of the uterine contour by a leiomyosarcoma. Dashed arrows indicate the leiomyosarcoma; solid arrows highlight the minimal distortion of the endometrial contour caused. (b) In the corresponding processed image, visualization of the endometrial–leiomyosarcoma interface has been significantly enhanced.

 

Figure 4
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  		Figure 4. The two manually segmented regions of interest(ROIs) corresponding to the endometrium without including the endometrial border (ROI1) and to endometrium along with the adjacent area of the myometrium (ROI2) in the original (a) and the corresponding processed image (b). The dashed line indicates the endometrial–myometrial interface. Histology documented proliferative endometrium.

 

Figure 5
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  		Figure 5. Receiver operating characteristic(ROC) curves corresponding to the logistic regression models extracted from region of interest (ROI)1, ROI2, ROI3 and ROI1/ROI3 for original (a) and processed (b) images.

 




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