RESUMO
Speckle-based methods have been developed to characterize tissue blood flow and perfusion. One such method, called modified laser speckle imaging (mLSI), enables computation of blood flow maps with relatively high spatial resolution. Although it is known that the sensitivity and noise in LSI measurements depend on image exposure time, a fundamental disadvantage of mLSI is that it does not take into account this parameter. In this work, we integrate the exposure time into the mLSI method and provide experimental support of our approach with measurements from an in vitro flow phantom.
Assuntos
Lasers , Imagem Molecular/métodos , Imagens de Fantasmas , Fatores de TempoRESUMO
Enteritis developed in a 42-day-old female infant, and during hospitalization ileal perforation occurred unexpectedly. Serologic data, urinary viral culture, and pathologic studies of the resected ileal segment all suggested cytomegalovirus infection. Gastrointestinal involvement in congenital or perinatal infection with this virus may be relatively more common than previously recognized.