Tag Archives: pattern recognition

TRANSACT-ITN Scientific Workshop on “Spectra Classification and Decision-Support tools in the clinic”

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Workshop on “Spectra Classification and Decision-Support tools in the clinic”
December 3-4, 2014 
Universitat Autònoma Barcelona, Spain

The TRANSACT European Project organizes a two-days scientific workshop on “Spectra Classification and Decision-Support tools in the clinic”. The workshop will be held on December 3-4, 2014 at Hotel Campus UAB which is located in the campus of Universitat Autònoma de Barcelona. Continue reading TRANSACT-ITN Scientific Workshop on “Spectra Classification and Decision-Support tools in the clinic” →

How does HR-MAS spin rate affect the spectral pattern of mobile lipids?

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“Influence of the spinning rate in the HR-MAS pattern of mobile lipids in C6 glioma cells and in artificial oil bodies” Juana Martín-Sitjar, Teresa Delgado-Goñi, Miquel E. Cabañas, Jason Tzen, Carles Arús; Magnetic Resonance Materials in Physics, Biology and Medicine, 2012, 25(6):487-496. DOI: 10.1007/s10334-012-0327-6

Object: To evaluate how spinning rate affects mobile lipid (ML) resonances visibility in HR-MAS spectra of C6 glioma cells and artificial oil bodies (AOB), as models of cytosolic lipid droplets. Materials and methods: Using C6 cells and AOB of two different sizes, 780 ± 580 and 240 ± 293 nm, as models, we acquired HR-MAS pulse and acquire spectra at different spinning rates between 500 and 15,000 Hz, all at 37 °C. Continue reading How does HR-MAS spin rate affect the spectral pattern of mobile lipids? →

Myo-inositol and glycine relative content may help to grade astrocytic tumours.

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Cover page of the Journal Belge de Radiologie - Belgisch Tijdschrift voor RadiologieNon-Invasive grading of astrocytic tumours from the relative contents of myo-inositol and glycine measured by in vivo MRS”, Ana Paula Candiota, Carles Majós, Margarida Julià-Sapé, Miquel Cabañas, Juan José Acebes, Àngel Moreno-Torres, John R. Griffiths, Carles Arús; Journal Belge de Radiologie – Belgisch Tijdschrift voor Radiologie, 94, 319-329 (2011).  DOI: 10.5334/jbr-btr.698

MRI and MRS are established methodologies for evaluating intracranial lesions. One MR spectral feature suggested for in vivo grading of astrocytic tumours is the apparent myo-Inositol (mI) intensity (ca 3.55ppm) at short echo times, although glycine (gly) may also contribute in vivo to this resonance. Continue reading Myo-inositol and glycine relative content may help to grade astrocytic tumours. →

Classification of multiple sclerosis clinical forms by 1-H magnetic ressonance spectroscopy of cerebrospinal fluid

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Fuzzy Sets and Systems journal “Decision tree based fuzzy classifier of 1-H magnetic resonance spectra from cerebrospinal fluid samples ”, Francesc Xavier Aymerich, Juli Alonso, Miquel E. Cabañas, M. Comabella, P. Sobrevilla, Alex Rovira; Fuzzy Sets and Systems 170, 43-63 (2011). DOI: 10.1016/j.fss.2011.01.003

This paper presents a method for classifying cerebrospinal fluid (CSF) samples studied by proton magnetic resonance spectroscopy (1-H MRS) into clinical subgroups by means of a fuzzy classifier. The method focuses on the analysis of a low signal-to-noise region of the spectra and is designed to use a small number of samples because sampling can only be done through an invasive technique. Continue reading Classification of multiple sclerosis clinical forms by 1-H magnetic ressonance spectroscopy of cerebrospinal fluid →