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Multi-Parametric Re...
Multi-Parametric Representation of Voxel-Based Quantitative Magnetic Resonance Imaging
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- Engström, Maria (författare)
- Linköpings universitet,Avdelningen för radiologiska vetenskaper,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Bertus Warntjes, Marcel, Jan (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Avdelningen för kardiovaskulär medicin,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Fysiologiska kliniken US,SyntheticMR AB, Linkoping, Sweden
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- Tisell, Anders (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Avdelningen för radiologiska vetenskaper,Hälsouniversitetet,Radiofysikavdelningen US,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Landtblom, Anne-Marie (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Avdelningen för neurovetenskap,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Neurologiska kliniken,Medicinska specialistkliniken,Division of Radiation Physics, Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
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- Lundberg, Peter (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Avdelningen för radiologiska vetenskaper,Hälsouniversitetet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Radiofysikavdelningen US,Röntgenkliniken i Linköping
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(creator_code:org_t)
- 2014-11-13
- 2014
- Engelska.
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Ingår i: PLOS ONE. - : Public Library of Science. - 1932-6203. ; 9:11, s. e111688-
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Abstract
Ämnesord
Stäng
- The aim of the study was to explore the possibilities of multi-parametric representations of voxel-wise quantitative MRI data to objectively discriminate pathological cerebral tissue in patients with brain disorders. For this purpose, we recruited 19 patients with Multiple Sclerosis (MS) as benchmark samples and 19 age and gender matched healthy subjects as a reference group. The subjects were examined using quantitative Magnetic Resonance Imaging (MRI) measuring the tissue structure parameters: relaxation rates, R-1 and R-2, and proton density. The resulting parameter images were normalized to a standard template. Tissue structure in MS patients was assessed by voxel-wise comparisons with the reference group and with correlation to a clinical measure, the Expanded Disability Status Scale (EDSS). The results were visualized by conventional geometric representations and also by multi-parametric representations. Data showed that MS patients had lower R-1 and R-2, and higher proton density in periventricular white matter and in wide-spread areas encompassing central and sub-cortical white matter structures. MS-related tissue abnormality was highlighted in posterior white matter whereas EDSS correlation appeared especially in the frontal cortex. The multi-parameter representation highlighted disease-specific features. In conclusion, the proposed method has the potential to visualize both high-probability focal anomalies and diffuse tissue changes. Results from voxel-based statistical analysis, as exemplified in the present work, may guide radiologists where in the image to inspect for signs of disease. Future clinical studies must validate the usability of the method in clinical practice.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
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