Sökning: "BOLD-fMRI"

Hittade 2 uppsatser innehållade ordet BOLD-fMRI.

  1. 1. Circadian Rhythms in the Brain - A first step

    Master-uppsats, Institutionen för medicinsk teknik; Centrum för medicinsk bildvetenskap och visualisering, CMIV; Tekniska högskolan

    Författare :Kamalaker Reddy Dadi; [2013]
    Nyckelord :BOLD-fMRI; Circadian Rhythms; suprachiasmatic nucleus; sleep disorders; ROI; ON-OFF experimental paradigm; ICA; activated voxels; voxel time series BOLD responses; correlation analysis;

    Sammanfattning : Circadian Rhythms (CR) are driven by a biological clock called as suprachiasmaticnucleus (SCN), located in a brain region called the hypothalamus. These rhythms are very much necessary in maintaining the sleep and wake cycle at appropriate times in a day. LÄS MER

  3. 2. Development of a phantom for optimisation and quality control in functional MRI (fMRI)

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Anders Nilsson; [2006]
    Nyckelord :MRI; Medicine and Health Sciences;

    Sammanfattning : Blood Oxygen Level Dependent (BOLD) imaging is a useful and promising examination tool for mapping human brain functions, using the local alteration of blood oxygenation in the brain caused by neural activity. However, due to the weak signal response, optimisation of the entire methodology is important in BOLD imaging. LÄS MER