Witold Zieleznik

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BACKGROUND The occurrence of precancerous lesions, such as high-grade dysplasia, in patients with short-segment Barrett's esophagus is controversial. This study assessed the efficacy of autofluorescence endoscopy for detection of high-grade dysplasia in short-segment Barrett's esophagus. METHODS A total of 34 patients (28 men, 6 women; age range 40-77(More)
OBJECTIVES Computer-aided diagnostic (CAD) techniques aid physicians in better diagnosis of diseases by extracting objective and accurate diagnostic information from medical data. Hashimoto thyroiditis is the most common type of inflammation of the thyroid gland. The inflammation changes the structure of the thyroid tissue, and these changes are reflected(More)
Hashimoto's thyroiditis is the most common type of inflammation of the thyroid gland, and accurate diagnosis of Hashimoto's thyroiditis would be helpful to better manage the disease process and predict thyroid failure. Most of the published computer-based techniques that use ultrasound thyroid images for Hashimoto's thyroiditis diagnosis are limited by lack(More)
INTRODUCTION This paper concerns the analysis of the features obtained from thyroid ultrasound images in left and right transverse and longitudinal sections. In the image analysis, the thyroid lobe is treated as a texture for healthy subjects and patients with Hashimoto's disease. The applied methods of analysis and image processing were profiled to obtain(More)
Here we describe a prospective 2-year evaluation of the efficiency of a new procedure of percutaneous ethanol injection (PEI) treatment of viscous thyroid cystic nodules (VTCN). Three patients with VCTN were selected from a group of 22 patients with solitary thyroid cystic nodules. A modified two-stage ethanol injection procedure was planned for these(More)
UNLABELLED White light cystoscopy (WLC) is considered to be a standard examination for localisation and surveillance of transitional cell cancer of urinary bladder. However, in patients who have undergone transurethral resection of bladder tumour (TUR-BT) sensitivity of this method is too low for early detection of cancer recurrence. In order to improve(More)
BACKGROUND The objective of our study was to determine therapeutic response to photodynamic therapy (PDT) and adverse reaction of PDT in 126 patients with 141 lesions: 36 patients with 41 lesions of superficial basal cell carcinoma (BCC), 35 patients with nodular BCC, 42 patients with ulcerated BCC, four patients with 14 lesions of actinic keratoses, five(More)
INTRODUCTION This paper shows the influence of a measurement method of features in the diagnosis of Hashimoto's disease. Sensitivity of the algorithm to changes in the parameters of the ROI, namely shift, resizing and rotation, has been presented. The obtained results were also compared to the methods known from the literature in which decision trees or(More)
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