J 2013

Potential of MR spectroscopy for assessment of glioma grading

BULIK, Martin, Radim JANČÁLEK, Jiří VANÍČEK, Antonín ŠKOCH, Marek MECHL et. al.

Basic information

Original name

Potential of MR spectroscopy for assessment of glioma grading

Authors

BULIK, Martin (203 Czech Republic, guarantor, belonging to the institution), Radim JANČÁLEK (203 Czech Republic, belonging to the institution), Jiří VANÍČEK (203 Czech Republic, belonging to the institution), Antonín ŠKOCH (203 Czech Republic) and Marek MECHL (203 Czech Republic, belonging to the institution)

Edition

Clinical Neurology and Neurosurgery, Amsterdam, Elsevier, 2013, 0303-8467

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30000 3. Medical and Health Sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.248

RIV identification code

RIV/00216224:14110/13:00067698

Organization unit

Faculty of Medicine

UT WoS

000314447500005

Keywords in English

Magnetic resonance spectroscopy; Metabolites; Glioma; Grade

Tags

International impact, Reviewed
Změněno: 4/3/2014 17:19, Ing. Mgr. Věra Pospíšilíková

Abstract

V originále

Magnetic resonance spectroscopy (MRS) is an imaging diagnostic method based that allows non-invasive measurement of metabolites in tissues. There are a number of metabolites that can be identified by standard brain proton MRS but only a few of them has a clinical significance in diagnosis of gliomas including N-acetylaspartate, choline, creatine, myo-inositol, lactate, and lipids. Results: Low-grade gliomas are generally characterized by a relatively high concentration of Nacetylaspartate, low level of choline and absence of lactate and lipids. The increase in creatine concentration indicates low-grade gliomas with earlier progression and malignant transformation. Progression in grade of a glioma is reflected in the progressive decrease in the N-acetylaspartate and myo-inositol levels on the one hand and elevation in choline level up to grade III on the other. Malignant transformation of the glial tumors is also accompanied by the presence of lactate and lipids in MR spectra of grade III but mainly grade IV gliomas. It follows that MRS is a helpful method for detection of glioma regions with aggressive growth or upgrading due to favorable correlation of the choline and N-acetylaspartate levels with histopathological proliferation index Ki-67. Thus, magnetic resonance spectroscopy is also a suitable method for the targeting of brain biopsies. Conclusions: Gliomas of each grade have some specific MRS features that can be used for improvement of the diagnostic value of conventional magnetic resonance imaging in non-invasive assessment of glioma grade.