Σύγκριση μεθόδων

	Ποσοτική Χαρτογράφηση Ευαισθησίας	Απεικόνιση Δομών Ιστών με Τανυστή Διάχυσης (DTI tractography)
Πεδίο	Ιατρική Απεικόνιση	Ιατρική Απεικόνιση
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	2015	1999
Δημιουργός	Yong Wang	Peter Basser
Τύπος	Quantitative MRI contrast mechanism	Fiber tracking from diffusion MRI
Θεμελιώδης πηγή	Wang, Y., Liu, T. (2015). Quantitative susceptibility mapping (QSM): Decoding MRI data for a tissue magnetic biomarker. Magnetic Resonance in Medicine, 73(1), 82-101.	Basser, P. J., Mattiello, J., LeBihan, D. (1994). Estimation of the effective self-diffusion tensor from the NMR spin echo. Journal of Magnetic Resonance, Series B, 103(3), 247-254.
Εναλλακτικές ονομασίες	QSM, susceptibility-weighted imaging	Diffusion tensor tractography, White matter tractography, Fiber tracking
Συναφείς	5	5
Σύνοψη	Quantitative Susceptibility Mapping (QSM) is a post-processing technique that converts MRI phase data into quantitative susceptibility values, enabling direct visualization and measurement of tissue magnetic properties. Developed by Wang, Liu, and colleagues, QSM transforms phase shifts caused by differences in magnetic susceptibility between tissues into tissue-specific biomarkers. It has revolutionized the sensitivity of MRI to iron, calcium, and other paramagnetic and diamagnetic substances, making it valuable in neurodegenerative disease diagnosis and tissue characterization.	Diffusion Tensor Imaging Tractography (DTI tractography) is a non-invasive neuroimaging technique that maps white matter fiber bundles in the brain by tracking the three-dimensional diffusion of water molecules along axons. Pioneered by Basser, Mori, and Conturo in the 1990s, DTI tractography reveals the structural connectivity of the brain, enabling visualization of major pathways (corpus callosum, arcuate fasciculus, corticospinal tract) and assessment of fiber integrity. It is widely used in neurosurgical planning, neurological disease assessment, and brain connectivity research.