CHALLENGES IN MAMMOGRAPHIC IMAGE TOP QUALITY FROM CONVENTIONAL RADIOGRAPHY, PERMANENT MAGNETIC RESONANCE THE IMAGE AND ULTRASOUND A TERM PAPER
OFFERED IN INCOMPLETE FULFILMENT FROM THE REQUIREMENT OF THE COURSE RAD 422 (RADIOGRAPHIC PHOTOGRAPHY, OPTICAL TECHNOLOGIES & IMAGE RESOLUTION PROCESSES VI) BY
OZIOKO HYACINTH CHIJIOKE
REG. NO: 2009/164100
LECTURER: DR . EZE C. U
8TH MIGHT 2013.
Issues in mammographic image quality from Radiography, Ultrasound and MRI Mammographic Image quality challenges coming from Radiography Photo clarity, and also the ability from the mammogram to portray classification information obviously, depends on numerous factors, that include exposure, clarity, contrast, and noise. Inside the image quality category of exposure, generalized underexposure was a far more frequent deficiency than overexposure. This is of interest because lesions can be obscured in heavy underexposed breast growth, which leads to false-negative mammograms. Generalized underexposure can derive from inadequate compression, technical factors, equipment breakdown, or a combination of these elements. nonuniform exposure of the breast parenchyma with inadequate transmission of denser tissues was another frequently cited deficit. Sharpness is the ability to determine the sides of breast structures. Unsharpness, also referred to as blur, is described by poor delineation with the edges of linear buildings, tissue margins, and microcalcifications. Common factors behind blur contain patient motion and poor screen-film get in touch with. Contrast, which can be the degree of variation in optical density between different areas in the film, can be affected by film processing, exposure, film type, and spread reduction (with grids, compression). Inadequate comparison was a even more frequent deficiency than abnormal contrast. Noises manifested as being a visually dazzling mottle style, was the least common category that led to...
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