Evidence map›Paper›PMID 29476216›Full record

ArticleEuropean radiology2018

Late gadolinium enhancement of colorectal liver metastases post-chemotherapy is associated with tumour fibrosis and overall survival post-hepatectomy.

Helen M C Cheung, Paul J Karanicolas, Eugene Hsieh, Natalie Coburn, Tishan Maraj, Jin K Kim, Howaida Elhakim, Masoom A Haider, Calvin Law, Laurent Milot

Open access · hybridAbstract read
In one paragraph

Article in European radiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

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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

10 authors at 3 institutions in 1 country.

Helen M C CheungDepartment of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Rm AB 279, Toronto, ON, Canada.
Paul J KaranicolasDepartment of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
Eugene HsiehDepartment of Anatomic Pathology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
Natalie CoburnDepartment of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
Tishan MarajDepartment of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Rm AB 279, Toronto, ON, Canada.
Jin K KimDepartment of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Rm AB 279, Toronto, ON, Canada.
Howaida ElhakimDepartment of Anatomic Pathology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
Masoom A HaiderDepartment of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Rm AB 279, Toronto, ON, Canada.
Calvin LawDepartment of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
Laurent MilotDepartment of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Rm AB 279, Toronto, ON, Canada. laurent.milot@sunnybrook.ca.
Sunnybrook Health Science Centre · CAHealth Sciences Centre · CAUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo determine whether late gadolinium MRI enhancement of colorectal liver metastases (CRCLM) post-chemotherapy is associated with tumour fibrosis and survival post-hepatectomy. MATERIALS AND

methodsThe institutional review board approved this retrospective cohort study and waived the requirement for informed consent. A cohort of 121 surgical patients who received preoperative MRI after chemotherapy between 2006-2012 was included in this study. Target tumour enhancement (TTE), defined as the mean contrast-to-noise ratio of up to two target lesions on late-phase gadobutrol-enhanced MRI, was determined by two independent raters. The average TTE was correlated with tumour fibrosis on post-hepatectomy specimens using Spearman correlation and with survival post-hepatectomy using Kaplan-Meier and Cox regression. Inter-rater reliability was determined using relative intra-class correlation coefficients.

resultsIn the surgical cohort (mean age: 63.0 years; male: 58%), TTE was associated with tumour fibrosis (r = 0.43, p < 0.001). Strong TTE was associated with improved survival compared to weak TTE (3-year survival: 88.4% vs. 58.8%, p = 0.003) with a hazard ratio of 0.32 (95% CI: 0.14-0.75, p = 0.008), after taking into account known prognostic variables. Inter-rater reliability was very good with a relative intraclass correlation of 0.84 (95% CI: 0.77-0.89).

conclusionLate gadolinium MRI enhancement of CRCLM post-chemotherapy is associated with tumour fibrosis and survival. KEY POINTS: • MRI enhancement of colorectal liver metastases is associated with survival post-hepatectomy • MRI enhancement of chemotherapy-treated colorectal liver metastases correlates with tumour fibrosis • Measuring late MRI enhancement using target tumour enhancement is reliable.

Indexed as

HepatectomyAgedColorectal NeoplasmsContrast MediaFemaleFibrosisHumansImage EnhancementLiverLiver NeoplasmsMagnetic Resonance ImagingMaleOrganometallic CompoundsProportional Hazards ModelsReproducibility of ResultsRetrospective StudiesContrast MediagadobutrolOrganometallic CompoundsColorectal cancerFibrosisGadoliniumNeoplasm metastasesSurvival

Identifiers

PMID29476216
PMCPMC6028845
OpenAlexW2790494446

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.