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Improving quality of MR spectra from mouse brain. MRSI-detected pattern in glioblastoma patients

Work performed at Unit 25 of Nanbiosis ICTS of “NMR: Biomedical ApplicationsI” is being shown at the Joint annual meeting ISMRM-ESMRMB (May 7-12th) London, with the participation of CIBER-BBN group members Ana Paula Candiota, Silvia Lope-Piedrafita, Miquel Cabañas (abstract 1), Carles Arús, Gulnur Ungan, Margarida Julià-Sapé, Alfredo Vellido and Carles Majós (abstract 2).

In the first abstract, entitled “High resolution Multi-voxel spectroscopy using CSI-semi-LASER for mouse brain preclinical studies” we focused into improving quality of MR spectra obtained from mouse brain, a key factor when trying to pursue metabolomic-based biomarkers.

The second abstract, entitled “MRSI-detected pattern in glioblastoma patients one month after concomitant chemoradiotherapy” presented a study with a retrospective MRSI set of 31 glioblastoma patients and investigation of spectral patterns predictive of true progression or pseudoprogression.

The International Society for Magnetic Resonance in Medicine (ISMRM) and The European Society for Magnetic Resonance in Medicine and Biology (ESMRMB) are prestigious scientific societies devoted to magnetic resonance-based studies at international and European levels with participation of the most renowned scientifics in the field. This year, the international and european events are joined into a single event (https://www.ismrm.org/22m/)

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MRSI-based generation of nosological images for noninvasive therapy response assessment in preclinical GBM

Nuria Arias Ramos from GABRMN-UAB, research group coordinator of Unit 25 of NANBIOSIS, presented on January 30th, an oral communication at the youngSMIN | young Spanish Molecular Imaging Network Meeting.

The title of the communication is “Multi slice MRSI-based generation of nosological images for noninvasive therapy response assessment in preclinical GBM”, written by Nuria Arias-Ramos, SilviaLope-Piedrafita, Victor Mocioiu, Margarida Julià-Sapé, Carles Arús and Ana Paula Candiota.

The work is basically centered in extending the preliminary GABRMN study based on MRSI  acquired in a preclinical glioblastoma (GB), both under treatment and control, with pattern recognition and source extraction for noninvasive therapy response assessment. The preliminary study was  performed in a single tumoral slice, but the GB is a well-known heterogeneous tumor and also presents heterogenous response to treatment, so the multislice acquisition was an important step in order to characterize therapy response assessment as a whole, not centered in a single slice. Tumors were stratified in no response, partial response and high response after calculating the percentage of the ‘responding’ part of the tumor, and histopathological studies for correlation are in progress.

The MRSI acquisition and processing steps were performed in NANBIOSIS facility U25.

MRSI-based generation of nosological images for noninvasive therapy response assessment in preclinical GBM
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