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RATIONALE AND OBJECTIVES Magnetic resonance imaging (MRI)-based texture analysis has been shown to be effective in classifying multiple sclerosis lesions. Regarding the clinical use of texture analysis in multiple sclerosis, our intention was to show which parts of the analysis are sensitive to slight changes in textural data acquisition and which steps(More)
Epidermal growth factor receptor (EGFR) is a key factor in tumorigenesis. The association between EGFR expression and prognosis in renal cell carcinoma (RCC) is not clear. In our study of 134 RCCs, the cellular location of immunostaining was evaluated and patients with EGFR-positive tumours with prominent membranous staining had a good prognosis. Their(More)
OBJECTIVES To evaluate the changes in the multiple sclerosis (MS) concordance in twins, and the contribution of genetic and environmental factors to the aetiology of MS in Finland. BACKGROUND Both genes and the environment contribute to the development of MS. A well-conducted twin study is an excellent means to assess the relative contribution of(More)
RATIONALE AND OBJECTIVES The aim of this study was to evaluate whether texture analysis (TA) can detect subtle changes in cerebral tissue caused by mild traumatic brain injury (MTBI) and to determine whether these changes correlate with neuropsychological and diffusion tensor imaging (DTI) findings. MATERIALS AND METHODS Forty-two patients with MTBIs were(More)
BACKGROUND Our objective was to study the effect of trauma on texture features in cerebral tissue in mild traumatic brain injury (MTBI). Our hypothesis was that a mild trauma may cause microstructural changes, which are not necessarily perceptible by visual inspection but could be detected with texture analysis (TA). METHODS We imaged 42 MTBI patients by(More)
BACKGROUND To show magnetic resonance imaging (MRI) texture appearance change in non-Hodgkin lymphoma (NHL) during treatment with response controlled by quantitative volume analysis. METHODS A total of 19 patients having NHL with an evaluable lymphoma lesion were scanned at three imaging timepoints with 1.5T device during clinical treatment evaluation.(More)
The aim here is to show that texture parameters of magnetic resonance imaging (MRI) data changes in lymphoma tissue during chemotherapy. Ten patients having non-Hodgkin lymphoma masses in the abdomen were imaged for chemotherapy response evaluation three consecutive times. The analysis was performed with MaZda texture analysis (TA) application. The best(More)
BACKGROUND The accuracy of texture analysis in clinical evaluation of magnetic resonance images depends considerably on imaging arrangements and various image quality parameters. In this paper, we study the effect of slice thickness on brain tissue texture analysis using a statistical approach and classification of T1-weighted images of clinically confirmed(More)
OBJECTIVE We describe the essential diffusion tensor imaging (DTI) findings of right cerebral hemisphere infarctions and study whether the DTI parameters and neurological status differ in patients with visible wallerian degeneration (WD) or small hemorrhagic transformation (HT) in the chronic stage. METHODS Twenty-five stroke patients underwent DTI.(More)
BACKGROUND Disability retirement because of depression is increasingly common in Finland. The rise of such retirement coincided with the rise of unemployment in the second half of the 1990s. In this study we sought potential connections between these two epidemics. We assumed that depressiveness incurs a higher risk of disability retirement among the(More)