Evidence map›Paper›PMID 22936096›Full record

ArticleAJNR. American journal of neuroradiology2013

Combined diffusion and perfusion MR imaging as biomarkers of prognosis in immunocompetent patients with primary central nervous system lymphoma.

F E Valles, C L Perez-Valles, S Regalado, R F Barajas, J L Rubenstein, S Cha

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

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  14. Primary central nervous system lymphoma.Nature reviews. Disease primers · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

F E VallesDepartment of Radiology and Biomedical Imaging, University of California San Francisco School of Medicine, San Francisco, California 94117, USA.
C L Perez-Valles
S Regalado
R F Barajas
J L Rubenstein
S Cha
University of California, San Francisco · US

Funding

The Role of Interleukin-4 (IL-4) in the Pathogenesis of Non-Hodgkin's LymphomaR01CA139083 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI RUBENSTEIN, JAMES LOUIS · 2009 to 2018
$3.4M
Clinical and Transtional Science InstituteTL1RR024129 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JOHNSTON, S. CLAIBORNE · 2006 to 2011
$2.0M
NCI NIH HHS R01 CA139083NCI NIH HHS R01 CA139083-01A1NCI NIH HHS R01CA1398301NCRR NIH HHS TL1 RR024129NCRR NIH HHS TL1RR024129
6 · The paper itself

Abstract

background and purposeADC derived from DWI has been shown to correlate with PFS and OS in immunocompetent patients with PCNSL. The purpose of our study was to confirm the validity of ADC measurements as a prognostic biomarker and to determine whether rCBV measurements derived from DSC perfusion MR imaging provide prognostic information. MATERIALS AND

methodsPretherapy baseline DWI and DSC perfusion MR imaging in 25 patients with PCNSL was analyzed before methotrexate-based induction chemotherapy. Contrast-enhancing tumor was segmented and coregistered with ADC and rCBV maps, and mean and minimum values were measured. Patients were separated into high or low ADC groups on the basis of previously published threshold values of ADC(min) < 384 × 10(-6) mm(2)/s. High and low rCBV groups were defined on the basis of receiver operating curve analysis. High and low ADC and rCBV groups were analyzed independently and in combination. Multivariate Cox survival analysis was performed.

resultsPatients with ADC(min) values < 384 × 10(-6) mm(2)/s or rCBV(mean) values < 1.43 had worse PFS and OS. The patient cohort with combined low ADC(min)-low rCBV(mean) had the worst prognosis. No other variables besides ADC and rCBV significantly affected survival.

conclusionsOur study reinforces the validity of ADC values as a prognostic biomarker and provides the first evidence of low tumor rCBV as a novel risk factor for adverse prognosis in immunocompetent patients with PCNSL.

Indexed as

AgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsBiomarkersBrain NeoplasmsDiffusion Magnetic Resonance ImagingFemaleHumansImmunocompetenceLymphoma, B-CellMagnetic Resonance AngiographyMaleMiddle AgedPrognosisReproducibility of ResultsSensitivity and SpecificityBiomarkers

Identifiers

PMID22936096
PMCPMC4134048
OpenAlexW2106705123

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.