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Found 3 essays matching the above criteria.

1. 1. Microcalcification Detection in Mammography using Wavelet Transform and Statistical Parameters

   University essay from Göteborgs universitet/Institutionen för matematiska vetenskaper

   Author : Eliza Hashemi Aghjekandi; [2012-03-15]
   Keywords : Microcalcifications in Mammography; Wavelets Transforms; Skewness; Kurtosis Parameter;

   Abstract : The earliest sign of breast cancer is the existence of microcalcifications which are tiny calcium clusters in breast tissues detected in mammographies. Early detection and diagnosis of microcalcifications is the main step to improve prognosis of breast cancer, which is one of the most frequently serious disease among women. READ MORE

3. 2. Potential for lower doses in digital mammograph Tumor detection in hybrid images using a dose reduction simulation method

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Pontus Timberg; [2006]
   Keywords : Röntgen; Medicine and Health Sciences;

   Abstract : Purpose: To determine how image quality linked to tumor detection is affected by reducing the absorbed dose to 50% and 30% of standard dose levels, i.e. an average glandular dose of 1.26 mGy for a standard breast according to European guidelines. READ MORE

4. 3. Optimisation of direct digital mammography with the Jackknife FROC method

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Tony Svahn; [2005]
   Keywords : Röntgen; Medicine and Health Sciences;

   Abstract : "PURPOSE: The aim of this study was to investigate how the diagnostic accuracy in digital mammography is affected by dose to the breast. MATERIAL AND METHODS: Structures resembling invasive tumours and microcalcifications on x-ray images were positioned in an anthropomorphic breast phantom equivalent to a 50 mm compressed breast containing 50% glandular tissue. READ MORE