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Diffusion-weighted MR imaging histogram analysis in HIV positive and negative patients with primary central nervous system lymphoma as a predictor of outcome and tumor proliferation.

Publication ,  Journal Article
Khan, B; Chong, I; Ostrom, Q; Ahmed, S; Dandachi, D; Kotrotsou, A; Colen, R; Morón, F
Published in: Oncotarget
November 10, 2020

INTRODUCTION: Ki-67 expression, a marker of tumor proliferation, is considered a prognostic factor in primary CNS lymphoma (PCNSL). Apparent diffusion coefficient (ADC) parameters have also been proposed as imaging biomarkers for tumor progression and proliferative activity in various malignancies. The aim of this study is to investigate the correlation between ADC parameters, Ki-67 expression, overall survival (OS) and progression free survival (PFS) in PCNSL. MATERIALS AND METHODS: Patients diagnosed with PCNSL at MD Anderson Cancer Center between Mar 2000 and Jul 2016 and at Ben Taub Hospital between Jan 2012 and Dec 2016 were retrospectively studied. Co-registered ADC maps and post-contrast images underwent whole tumor segmentation. Normalized ADC parameters (nADC) were calculated as the ratio to normal white matter. Percentiles of nADC were calculated and were correlated with Ki-67 using Pearson's correlation coefficient and clinical outcomes (OS and PFS) using Cox proportional hazards models. RESULTS: Selection criteria yielded 90 patients, 23 patients living with HIV (PLWH) and 67 immunocompetent patients. Above median values for nADCmean, nADC15, nADC75 and nADC95 were associated with improved OS in all patients (p < 0.05). Above median values for nADCmin, nADCmean, nADC1, nADC5 and kurtosis were associated with improved PFS in all patients (p < 0.05). In patients with available Ki-67 expression data (n = 22), nADCmean, nADC15 and nADC75 inversely correlated with Ki-67 expression (p < 0.05). For PLWH, there was no correlation between ADC parameters and Ki-67 expression or clinical outcomes. CONCLUSIONS: ADC histogram analysis can predict tumor proliferation and survival in immunocompetent patients with PCNSL, but with limited utility in PLWH.

Duke Scholars

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Published In

Oncotarget

DOI

EISSN

1949-2553

Publication Date

November 10, 2020

Volume

11

Issue

45

Start / End Page

4093 / 4103

Location

United States

Related Subject Headings

  • 3211 Oncology and carcinogenesis
  • 1112 Oncology and Carcinogenesis
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Khan, B., Chong, I., Ostrom, Q., Ahmed, S., Dandachi, D., Kotrotsou, A., … Morón, F. (2020). Diffusion-weighted MR imaging histogram analysis in HIV positive and negative patients with primary central nervous system lymphoma as a predictor of outcome and tumor proliferation. Oncotarget, 11(45), 4093–4103. https://doi.org/10.18632/oncotarget.27800
Khan, Bilal, Insun Chong, Quinn Ostrom, Sara Ahmed, Dima Dandachi, Aikaterini Kotrotsou, Rivka Colen, and Fanny Morón. “Diffusion-weighted MR imaging histogram analysis in HIV positive and negative patients with primary central nervous system lymphoma as a predictor of outcome and tumor proliferation.Oncotarget 11, no. 45 (November 10, 2020): 4093–4103. https://doi.org/10.18632/oncotarget.27800.
Khan B, Chong I, Ostrom Q, Ahmed S, Dandachi D, Kotrotsou A, Colen R, Morón F. Diffusion-weighted MR imaging histogram analysis in HIV positive and negative patients with primary central nervous system lymphoma as a predictor of outcome and tumor proliferation. Oncotarget. 2020 Nov 10;11(45):4093–4103.

Published In

Oncotarget

DOI

EISSN

1949-2553

Publication Date

November 10, 2020

Volume

11

Issue

45

Start / End Page

4093 / 4103

Location

United States

Related Subject Headings

  • 3211 Oncology and carcinogenesis
  • 1112 Oncology and Carcinogenesis