Abstract
Background: In the era of integrated genomic-histologic analysis of brain tumors, new biomarkers have been introduced as diagnostic, prognostic, and therapeutic indicators. The analysis of the mutation in the isocitrate dehydrogenase (IDH) genes IDH1 and IDH2 has provided important diagnostic and prognostic information for patients affected by diffuse glioma (i.e., the presence of the mutation has been related to an increased survival rate). The reference standard of IDH mutation detection has been its assessment in surgical specimens, immunohistochemistry, and/or genetic sequencing. Knowing the IDH status information preoperatively would be of great importance, because it has been related to tumor progression and the response to treatment. The oncometabolite 2-hydroxyglutarate (2HG), accumulated in gliomas with IDH mutation status, can be detected in vivo using magnetic resonance spectroscopy (MRS). Methods: The 2HG-MRS technique remains technically challenging. We have summarized the results of the first pilot study in Australia, which included 10 patients affected by glioma. The data recorded from May 2017 to November 2018 were analyzed. Results: In our exploratory study, we reached a sensitivity and specificity of 100%, confirming the strong predictive role of 2HG, as detected using MRS, in the diagnosis of glioma. Conclusion: In the present study, we have focused on methodological tips and future perspectives of the technique in the neuroimaging and neuro-oncological scenario. We would advocate the integration of 2HG-MRS into standard clinical practice.
| Language | English |
|---|---|
| Pages | e421-e427 |
| Number of pages | 7 |
| Journal | World Neurosurgery |
| Volume | 133 |
| DOIs | |
| Publication status | Published - Jan 2020 |
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Keywords
- 2-Hydroxyglutarate
- 2HG
- Glioma
- Magnetic resonance spectroscopy
- MRS
- Neuroimaging
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Magnetic resonance spectroscopic assessment of isocitrate dehydrogenase status in gliomas : the new frontiers of spectrobiopsy in neurodiagnostics. / Di Ieva, Antonio; Magnussen, John S.; McIntosh, Jeffery; Mulcahy, Michael J.; Pardey, Margery; Choi, Changho.
In: World Neurosurgery, Vol. 133, 01.2020, p. e421-e427.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Magnetic resonance spectroscopic assessment of isocitrate dehydrogenase status in gliomas
T2 - World Neurosurgery
AU - Di Ieva, Antonio
AU - Magnussen, John S.
AU - McIntosh, Jeffery
AU - Mulcahy, Michael J.
AU - Pardey, Margery
AU - Choi, Changho
PY - 2020/1
Y1 - 2020/1
N2 - Background: In the era of integrated genomic-histologic analysis of brain tumors, new biomarkers have been introduced as diagnostic, prognostic, and therapeutic indicators. The analysis of the mutation in the isocitrate dehydrogenase (IDH) genes IDH1 and IDH2 has provided important diagnostic and prognostic information for patients affected by diffuse glioma (i.e., the presence of the mutation has been related to an increased survival rate). The reference standard of IDH mutation detection has been its assessment in surgical specimens, immunohistochemistry, and/or genetic sequencing. Knowing the IDH status information preoperatively would be of great importance, because it has been related to tumor progression and the response to treatment. The oncometabolite 2-hydroxyglutarate (2HG), accumulated in gliomas with IDH mutation status, can be detected in vivo using magnetic resonance spectroscopy (MRS). Methods: The 2HG-MRS technique remains technically challenging. We have summarized the results of the first pilot study in Australia, which included 10 patients affected by glioma. The data recorded from May 2017 to November 2018 were analyzed. Results: In our exploratory study, we reached a sensitivity and specificity of 100%, confirming the strong predictive role of 2HG, as detected using MRS, in the diagnosis of glioma. Conclusion: In the present study, we have focused on methodological tips and future perspectives of the technique in the neuroimaging and neuro-oncological scenario. We would advocate the integration of 2HG-MRS into standard clinical practice.
AB - Background: In the era of integrated genomic-histologic analysis of brain tumors, new biomarkers have been introduced as diagnostic, prognostic, and therapeutic indicators. The analysis of the mutation in the isocitrate dehydrogenase (IDH) genes IDH1 and IDH2 has provided important diagnostic and prognostic information for patients affected by diffuse glioma (i.e., the presence of the mutation has been related to an increased survival rate). The reference standard of IDH mutation detection has been its assessment in surgical specimens, immunohistochemistry, and/or genetic sequencing. Knowing the IDH status information preoperatively would be of great importance, because it has been related to tumor progression and the response to treatment. The oncometabolite 2-hydroxyglutarate (2HG), accumulated in gliomas with IDH mutation status, can be detected in vivo using magnetic resonance spectroscopy (MRS). Methods: The 2HG-MRS technique remains technically challenging. We have summarized the results of the first pilot study in Australia, which included 10 patients affected by glioma. The data recorded from May 2017 to November 2018 were analyzed. Results: In our exploratory study, we reached a sensitivity and specificity of 100%, confirming the strong predictive role of 2HG, as detected using MRS, in the diagnosis of glioma. Conclusion: In the present study, we have focused on methodological tips and future perspectives of the technique in the neuroimaging and neuro-oncological scenario. We would advocate the integration of 2HG-MRS into standard clinical practice.
KW - 2-Hydroxyglutarate
KW - 2HG
KW - Glioma
KW - Magnetic resonance spectroscopy
KW - MRS
KW - Neuroimaging
UR - http://www.scopus.com/inward/record.url?scp=85073546685&partnerID=8YFLogxK
U2 - 10.1016/j.wneu.2019.09.040
DO - 10.1016/j.wneu.2019.09.040
M3 - Article
VL - 133
SP - e421-e427
JO - World Neurosurgery
JF - World Neurosurgery
SN - 1878-8750
ER -