Evidence map›Paper›PMID 20614485›Full record

ArticleWorld journal of gastroenterology2010

Functional magnetic resonance imaging in an animal model of pancreatic cancer.

Robert J Lewandowski, Aaron C Eifler, David J Bentrem, Johnathan C Chung, Dingxin Wang, Gayle E Woloschak, Guang-Yu Yang, Robert Ryu, Riad Salem, Andrew-C Larson and 1 more

Open access · hybridAbstract readEvaluation Study
In one paragraph

Article in World journal of gastroenterology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 37% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Article
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

11 authors at 1 institution in 3 countries.

Robert J LewandowskiDepartment of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA. r-lewandowski@northwestern.edu
Aaron C Eifler
David J Bentrem
Johnathan C Chung
Dingxin Wang
Gayle E Woloschak
Guang-Yu Yang
Robert Ryu
Riad Salem
Andrew-C Larson
Reed-A Omary
Northwestern University · US

Funding

MULTIDISCIPLINARY CLINICAL AND TRANSLATIONAL SCIENCE (MCTS) PROGRAM (UL1)UL1RR025741 · NCRR · NORTHWESTERN UNIVERSITY AT CHICAGO · PI GREENLAND, PHILIP · 2008 to 2011
$24.7M
TiO2 nanocomposites for Targeted Treatment and Imaging of Prostate cancerU54CA119341 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MIRKIN, CHAD A. · 2005 to 2009
$19.9M
Applications of TiO2-DNA nanocompositesR01EB002100 · NIBIB · NORTHWESTERN UNIVERSITY AT CHICAGO · PI WOLOSCHAK, GAYLE E. · 2005 to 2013
$2.5M
Cancer Nanotechnology in Imaging and RadiotherapyR25CA132822 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI WOLOSCHAK, GAYLE E. · 2009 to 2013
$2.0M
Application of TiO2-DNA nanocomposites to Cancer CellsR01CA107467 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI WOLOSCHAK, GAYLE E. · 2004 to 2006
$960k
Howard Hughes Medical InstituteNCI NIH HHS R01 CA107467NCI NIH HHS R25 CA132822NCI NIH HHS U54 CA119341NCRR NIH HHS UL1 RR025741NIBIB NIH HHS R01 EB002100
6 · The paper itself

Abstract

aimTo test the hypotheses that diffusion weighed (DW)- and transcatheter intraarterial perfusion (TRIP)-magnetic resonance imaging (MRI) can each be used to assess regional differences in tumor function in an animal pancreatic cancer model.

methodsVX2 tumors were implanted in pancreata of 6 rabbits. MRI and digital subtraction angiography (DSA) were performed 3 wk following implantation. With a 2-French catheter secured in the rabbit's gastroduodenal artery, each rabbit was transferred to an adjacent 1.5T MRI scanner. DW- and TRIP-MRI were performed to determine if necrotic tumor core could be differentiated from viable tumor periphery. For each, we compared mean differences between tumor core/periphery using a 2-tailed paired t-test (alpha = 0.05). Imaging was correlated with histopathology.

resultsTumors were successfully grown in all rabbits, confirmed by necropsy. On DW-MRI, mean apparent diffusion coefficient (ADC) value was higher in necrotic tumor core (2.1 +/- 0.3 mm(2)/s) than in viable tumor periphery (1.4 +/- 0.5 mm(2)/s) (P < 0.05). On TRIP-MRI, mean perfusion values was higher in tumor periphery (110 +/- 47 relative units) than in tumor core (66 +/- 31 relative units) (P < 0.001).

conclusionFunctional MRI can be used to differentiate necrotic from viable tumor cells in an animal pancreatic cancer model using ADC (DW-MRI) and perfusion (TRIP-MRI) values.

Indexed as

Angiography, Digital SubtractionAnimalsCatheterizationDisease Models, AnimalMagnetic Resonance ImagingNecrosisPancreatic NeoplasmsRabbits

Identifiers

PMID20614485
PMCPMC2900721
OpenAlexW2161083550

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.