Heidi Anni Kristiina Parantainen

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OBJECTIVE The purpose of this study was to compare the efficacies of mammography, sonography, CT, and MR imaging in the detection of breast implant rupture and to analyze the imaging findings. SUBJECTS AND METHODS Thirty-two women with 63 silicone breast implants participated in the study. All but one had signs and symptoms suggestive of rupture, and all(More)
OBJECTIVE During sonographic evaluation of silicone breast implants for possible rupture, we have frequently encountered several patterns of linear echoes within the implants. To our knowledge, the significance of this finding has not been established in the literature. The purpose of this study was to determine whether internal echoes are significant in(More)
In the oddball condition a frequently presented stimulus (standard) is occasionally replaced by a different stimulus (deviant) when at least in the auditory modality mismatch negativity (MMN) response is elicited to the deviant one. The aim of this study was to clarify if there is visual counterpart to auditory MMN, and if so what kind of a stimulus is able(More)
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