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We applied terahertz (THz)-pulsed spectroscopy to study ex vivo the refractive index and absorption coefficient of human brain gliomas featuring different grades, as well as perifocal regions containing both intact and edematous tissues. Glioma samples from 26 patients were considered and analyzed according to further histological examination. In order to fix tissues for the THz measurements, we applied gelatin embedding, which allows for sustaining their THz response unaltered, as compared to that of the freshly excised tissues.
View Article and Find Full Text PDFJ Am Acad Audiol
April 2012
This case report describes a 44-yr-old female referred by an outside facility who presented with progressive hearing loss in her left ear. Magnetic resonance imaging (MRI) results were normal, but a battery of audiological tests suggested neural hearing loss in the left ear. Following diagnosis of left neural hearing loss, the patient was successfully fit with a hearing aid on the left ear.
View Article and Find Full Text PDFAcad Radiol
June 2010
Biomedical Imaging Lab, Singapore Bioimaging Consortium, 30 Bioplolis Street #07-01, Matrix, Singapore.
Rationale And Objectives: Accurate segmentation of the brain ventricular system on computed tomographic (CT) imaging is useful in neurodiagnosis and neurosurgery. Manual segmentation is time consuming, usually not reproducible, and subjective. Because of image noise, low contrast between soft tissues, large interslice distance, large shape, and size variations of the ventricular system, no automatic method is presently available.
View Article and Find Full Text PDFAn Esp Pediatr
November 1989
Unidad de Cuidados Intensivos Pediátricos, Hospital Regional Reina Sofia, Facultad de Medicina, Córdoba.
Twelve brain death diagnosed children have been retrospectively surveyed. Their age ranged between seven months and thirteen years (mean = 5.7 years old).
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