Sökning: "functional magnetic resonance imaging"

Visar resultat 16 - 20 av 206 avhandlingar innehållade orden functional magnetic resonance imaging.

1. 16. Decoding the complex brain : multivariate and multimodal analyses of neuroimaging data

   Författare :Alireza Salami; Lars Nyberg; Cheryl Grady; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; multivariate analysis; univariate analysis; multimodal imaging; episodic memory; aging; functional magnetic resonance imaging; diffusion tensor imaging; biology; biologi; Psychology; psykologi; datoriserad bildanalys; Computerized Image Analysis;

   Sammanfattning : Functional brain images are extraordinarily rich data sets that reveal distributed brain networks engaged in a wide variety of cognitive operations. It is a substantial challenge both to create models of cognition that mimic behavior and underlying cognitive processes and to choose a suitable analytic method to identify underlying brain networks. LÄS MER

3. 17. Non-invasive Functional Neuroimaging for Localizing Epileptic Brain Activity

   Författare :Yazdan Shirvany; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mathematical Dipole; Finite Element Method; Source localization; Structural Magnetic Resonance Imaging; Forward Problem; Inverse Problem; Particle Swarm Optimization; Non-invasive EEG; Somatosensory Evoked Potentials; Epileptic Spike; Functional Neuroimaging;

   Sammanfattning : Surgical therapy has become an important therapeutic alternative for patients with medically intractable epilepsy. Correct and anatomically precise localization of the epileptic focus, preferably with non-invasive methods, is the main goal of the pre-surgical epilepsy diagnosis to decide if resection of brain tissue is possible. LÄS MER

4. 18. Fatigue after traumatic brain injury : exploring novel methods for diagnosis and treatment

   Författare :Nils Berginström; Anna Nordström; Peter Nordström; Lars Nyberg; Jan Lexell; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Traumatic brain injury; fatigue; OSU6162; randomized clinical trials; functional magnetic resonance imaging; neuropsychology; structural magnetic resonance imaging; white matter hyperintensities; rehabiliteringsmedicin; Rehabilitation Medicine;

   Sammanfattning : Background: Traumatic brain injury (TBI) is one of the most common causes of disability and mortality. While some patients recover quickly, especially at the mild side of the injury severity continuum, many will experience symptoms for years to come. LÄS MER

5. 19. Non-invasive EEG Functional Neuroimaging for Localizing Epileptic Brain Activity

   Författare :Yazdan Shirvany; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Somatosensory Evoked Potentials; Forward Problem; Inverse Problem; Mathematical Dipole; Epileptic Spike; Functional Neuroimaging; Structural Magnetic Resonance Imaging; Particle Swarm Optimization; Source localization; Finite Element Method; Non-invasive EEG;

   Sammanfattning : Epilepsy is one of the most common neurologic diseases in the world, and is present in up to 1% of the world’s population. Many patients with epilepsy never receive the treatment which make them seizure free. Surgical therapy has become an important therapeutic alternative for patients with drug resistant epilepsy. LÄS MER

7. 20. Magnetic resonance imaging for the assessment of liver function

   Författare :Henrik Nilsson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :DHCE-MRI;

   Sammanfattning : This thesis presents dynamic hepatocyte-specific contrast-enhanced magnetic resonance imaging (DHCE-MRI) as a new method for total and segmental liver function assessment. The method is based on the hepatocyte-specific properties of Gd- EOB-DTPA, which is actively taken up into functioning hepatocytes. LÄS MER