Volume 26, Issue 3 pp. 366-371
Original Research

Dynamic Contrast-Enhanced MRI in Low-Grade Versus Anaplastic Oligodendrogliomas

Julio Arevalo-Perez

Julio Arevalo-Perez

Department of Radiology, Neuroradiology Service, Memorial Sloan Kettering Cancer Center, New York, NY

Search for more papers by this author
Amanuel A. Kebede

Amanuel A. Kebede

Department of Radiology, Neuroradiology Service, Memorial Sloan Kettering Cancer Center, New York, NY

Search for more papers by this author
Kyung K. Peck

Kyung K. Peck

Department of Radiology, Neuroradiology Service, Memorial Sloan Kettering Cancer Center, New York, NY

Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY

Search for more papers by this author
Eli Diamond

Eli Diamond

Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY

Search for more papers by this author
Andrei I. Holodny

Andrei I. Holodny

Department of Radiology, Neuroradiology Service, Memorial Sloan Kettering Cancer Center, New York, NY

Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, NY

Search for more papers by this author
Marc Rosenblum

Marc Rosenblum

Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY

Search for more papers by this author
Jennifer Rubel

Jennifer Rubel

Department of Radiology, Neuroradiology Service, Memorial Sloan Kettering Cancer Center, New York, NY

Search for more papers by this author
Joshua Gaal

Joshua Gaal

Department of Radiology, Neuroradiology Service, Memorial Sloan Kettering Cancer Center, New York, NY

Search for more papers by this author
Vaios Hatzoglou

Corresponding Author

Vaios Hatzoglou

Department of Radiology, Neuroradiology Service, Memorial Sloan Kettering Cancer Center, New York, NY

Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, NY

Correspondence: Address correspondence to Vaios Hatzoglou, M.D. Department of Radiology Memorial Sloan Kettering Cancer Center, 1275 York Avenue New York, NY 10065. E-mail: [email protected]Search for more papers by this author
First published: 26 December 2015
Citations: 22

Grant support: Julio Arevalo-Perez was supported by a grant from the Spanish foundation “Fundación Alfonso Martín Escudero.” This research was funded in part through the NIH/NCI Cancer Center Support Grant P30 CA008748.

ABSTRACT

BACKGROUND AND PURPOSE

Low-grade and anaplastic oligodendrogliomas are often difficult to differentiate on the basis of conventional MR imaging characteristics. Dynamic contrast-enhanced (DCE) MRI can assess tumor microvasculature and has demonstrated utility for predicting glioma grade and prognosis in primary brain tumors. The aim of our study was to evaluate the performance of plasma volume (Vp) and volume transfer coefficient (Ktrans) derived from DCE MRI in differentiating between grade II and grade III oligodendrogliomas.

MATERIALS AND METHODS

Twenty-four consecutive patients with pathologically confirmed oligodendroglioma (World Health Organization grade II, n = 14 and grade III, n = 10) were retrospectively assessed. Pretreatment DCE MRI was performed and regions of interest were manually drawn around the entire tumor volume to calculate Vp and Ktrans. The Mann-Whitney U test and receiver operating characteristic (ROC) analysis were performed to compare pharmacokinetic parameters between the 2 groups.

RESULTS

The Vpmean values for grade III oligodendrogliomas were significantly higher (P = .03) than those for grade II oligodendrogliomas. The Ktransmean values were higher in grade III lesions, but the difference between the 2 groups was not statistically significant (P > .05). Based on ROC analysis, the Vpmean (area under curve = .757, SD = .1) cut-off value that provided the best combination of high sensitivity and specificity to distinguish between grade II and III oligodendrogliomas was 2.35 (P < .03).

CONCLUSION

The results of our study suggest the DCE MRI parameter Vpmean can noninvasively differentiate between grade II and grade III oligodendrogliomas.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.