Magdalena Aleksandra Blaszak

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This study assessed the effects of speech misidentification and cognitive processing errors in normal-hearing adults listening to degraded auditory input signals simulating cochlear implants in reverberation conditions. Three variables were controlled: number of vocoder channels (six and twelve), instantaneous frequency change rate (none, 50, 400 Hz), and(More)
OBJECTIVES AND DESIGN The aim of the study was to document the radiation doses to patients during the implantation of stents in various arteries and to discuss potential reasons for prolongation of radiological procedures. MATERIALS AND METHODS Measurements of air kerma (Gy) and dose-area product (Gy cm²) (DAP) were carried out simultaneously on a sample(More)
Complex analysis of the fluoroscopy time, exposure time, air kerma values and dose-area product (DAP) has been carried out for a very large group of patients (655) undergoing digital subtraction angiography (DSA) for abdominal aorta and lower limb examinations. Measurements have been performed for 206 patients with intravenous (IV DSA) and 449 patients with(More)
PURPOSE To study the perceptual consequences of changes in parameters of vocoded speech in various reverberation conditions. METHOD The 3 controlled variables were number of vocoder bands, instantaneous frequency change rate, and reverberation conditions. The effects were quantified in terms of (a) nonsense words' recognition scores for young(More)
BACKGROUND An important negative factor of EVAR is the radiation acquired during long-lasting procedures. The aim of the study was to document the radiation doses of EVAR and to discuss potential reasons for prolongation of radiological procedures. MATERIAL/METHODS Dose-area product (DAP) (Gy cm²) and air kerma (AK) (Gy) obtained during EVAR from 92(More)
This article is the first investigation that studies patient doses (air kerma and DAP) during digital subtraction angiography (DSA) for stent-graft treatment of both thoracic (TAAs) and abdominal (AAAs) aortic aneurysms. Fluoroscopy and exposure time, air kerma and dose-area product (DAP) were analyzed from 100 patients. In 41% of the analyzed patients(More)
OBJECTIVES AND DESIGN The aim of this work was to assess absorbed radiation doses in selected organs and to estimate cancer and mortality risks in patients undergoing abdominal stent-graft implantation, as a function of age, gender, and anatomical parameters of patients' aneurysms and arteries. MATERIALS AND METHODS 297 patients (266 males and 31 females)(More)
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