33 research outputs found
Physiological basis and image processing in functional magnetic resonance imaging: Neuronal and motor activity in brain
Functional magnetic resonance imaging (fMRI) is recently developing as imaging modality used for mapping hemodynamics of neuronal and motor event related tissue blood oxygen level dependence (BOLD) in terms of brain activation. Image processing is performed by segmentation and registration methods. Segmentation algorithms provide brain surface-based analysis, automated anatomical labeling of cortical fields in magnetic resonance data sets based on oxygen metabolic state. Registration algorithms provide geometric features using two or more imaging modalities to assure clinically useful neuronal and motor information of brain activation. This review article summarizes the physiological basis of fMRI signal, its origin, contrast enhancement, physical factors, anatomical labeling by segmentation, registration approaches with examples of visual and motor activity in brain. Latest developments are reviewed for clinical applications of fMRI along with other different neurophysiological and imaging modalities
Hyperhydroxyprolinaemia detected in newborn screening with tandem mass spectrometry
Hydroxyproline has the same integer molecular weight as leucine and isoleucine and is quantified with these by tandem mass spectrometry. An infant was diagnosed with hyperhydroxyprolinaemia following further evaluation of an elevated 'leucine' level in newborn screening by tandem mass spectrometry
TRANSCUTANEOUS ELECTRICAL NERVE STIMULATION (TENS) IN PERIPHERAL POLYNEUROPATHY IN DIABETES MELLITUS, CHRONIC KIDNEY DISEASE AND PRIMARY HYPERTENSION
WOS: 000456877501043
The contribution of molecular genetic methods to the diagnosis of classical galactosemia and investigation of genotype-phenotype correlation
FOLLOW UP OF PATIENTS TREATED FOR TYROSINEMIA TYPE I: BLOOD SPOT ANALYSIS OF NITISINONE AND SUCCINYLACETONE
Total plasma exchange in neuromyelitis optica patients: single centre experiences
Joint Congress of European Neurology -- MAY 31-JUN 03, 2014 -- Istanbul, TURKEYWOS: 000337563600137European Federat Neurol So
Hyperhydroxyprolinaemia detected in newborn screening with tandem mass spectrometry
Hydroxyproline has the same integer molecular weight as leucine and isoleucine and is quantified with these by tandem mass spectrometry. An infant was diagnosed with hyperhydroxyprolinaemia following further evaluation of an elevated 'leucine' level in newborn screening by tandem mass spectrometry