| Title |
Is deep brain involvement in intracranial primary central nervous system lymphoma of importance for penetration of chemotherapeutic agents?
|
|---|---|
| Published in |
Neuroradiology, May 2018
|
| DOI | 10.1007/s00234-018-2038-9 |
| Pubmed ID | |
| Authors |
Torstein R. Meling, Anna Latysheva, Michele Da Broi, Guro Jahr, Harald Holte, Klaus Beiske, Kyrre Eeg Emblem |
| Abstract |
The purposes of this study are to study the impact of deep brain involvement on overall survival (OS) and progression-free survival (PFS) in intracranial primary CNS lymphoma (PCNSL), and to explore possible mechanisms for this impact using advanced MRI techniques. Seventy-nine patients with histologically verified PCNSL were identified from a prospective clinical database of patients treated at Oslo University Hospital between 2003 and 2014. Patients were treated per standard chemotherapeutic regimens (N = 57) or no chemotherapy (N = 22). Anatomical MRIs were available in all patients to assess tumor load and location based on contrast agent enhancement visible on T1-weighted images. Diffusion MRIs were available in 33 (42%) patients and perfusion MRI in 13 (16%) patients that received active treatment. Across all patients, OS and PFS were 16.4 and 9.8 months, respectively. In multivariate analysis, MRI-based deep brain involvement (80%) was the only negative significant factor of OS (OR = 14.2; P < 0.005). While a reduced Karnofsky performance status was associated with deep brain involvement (P < 0.05), neither chemotherapy regimen, neurologic status, nor patient age were independent significant factors for OS or PFS in this setting. Compared to other tumors and healthy tissue levels, MRI perfusion showed more pathologic hemodynamic flow signatures in tumors with deep brain involvement. In intracranial PCNSL, the only significant prognostic factor for OS and PFS in multivariate analysis was age and deep brain involvement. While contingent on a small study sample, we hypothesize this may in part be explained by regional differences in vascular supply and delivery from a dysfunctional perfusion signature. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 33% |
| Unknown | 2 | 67% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 67% |
| Practitioners (doctors, other healthcare professionals) | 1 | 33% |
Mendeley readers
The data shown below were compiled from readership statistics for 10 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 10 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Lecturer | 1 | 10% |
| Student > Doctoral Student | 1 | 10% |
| Student > Ph. D. Student | 1 | 10% |
| Researcher | 1 | 10% |
| Professor > Associate Professor | 1 | 10% |
| Other | 1 | 10% |
| Unknown | 4 | 40% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 4 | 40% |
| Neuroscience | 1 | 10% |
| Unknown | 5 | 50% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 October 2018.
All research outputs
#14,411,951
of 23,081,466 outputs
Outputs from Neuroradiology
#664
of 1,408 outputs
Outputs of similar age
#187,426
of 330,907 outputs
Outputs of similar age from Neuroradiology
#6
of 23 outputs
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We're also able to compare this research output to 23 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 69% of its contemporaries.