Evidence map›Paper›PMID 31781199›Full record

ArticleGastroenterology research and practice2019

Does Tumour Contrast Retention on CT Immediately Post Chemoembolization Predict Tumour Metabolic Response on FDG-PET in Patients with Hepatic Metastases from Colorectal Cancer?

K T Tan, R Rakheja, C Plewes, P Mondal, H Lim, S Ahmed, E Lee, R Otani, Y Luo, J Shaw

Open access · goldAbstract read
In one paragraph

Article in Gastroenterology research and practice, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

5 citing papers in PubMed, 5 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 2 institutions in 1 country.

K T TanDepartment of Medical Imaging, University of Saskatchewan, 103 Hospital Drive, Room 1566, Saskatoon, SK, Canada S7N 0W8.ORCID https://orcid.org/0000-0001-5310-3458
R RakhejaDepartment of Medical Imaging, University of Saskatchewan, 103 Hospital Drive, Room 1566, Saskatoon, SK, Canada S7N 0W8.
C PlewesDepartment of Medical Imaging, University of Saskatchewan, 103 Hospital Drive, Room 1566, Saskatoon, SK, Canada S7N 0W8.
P MondalClinical Research Support Unit, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, Canada S7N 5E5.
H LimClinical Research Support Unit, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, Canada S7N 5E5.
S AhmedSaskatoon Cancer Centre, 20 Campus Drive, Saskatoon, SK, Canada S7N 4H4.
E LeeDepartment of Medical Imaging, University of Saskatchewan, 103 Hospital Drive, Room 1566, Saskatoon, SK, Canada S7N 0W8.
R OtaniDepartment of Medical Imaging, University of Saskatchewan, 103 Hospital Drive, Room 1566, Saskatoon, SK, Canada S7N 0W8.
Y LuoDepartment of Surgery, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK, Canada S7N 0W8.
J ShawDepartment of Surgery, University of Saskatchewan, 103 Hospital Drive, Saskatoon, SK, Canada S7N 0W8.
University of Saskatchewan · CAWestern University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe exact mechanism of action of chemoembolization with drug eluting beads loaded with irinotecan (DEBIRI) in colorectal cancer is undetermined. Posttreatment tumour contrast retention often seen on CT immediately post procedure is of indeterminate significance. This study is aimed at assessing if metabolic response on PET-CT can be related to posttreatment tumour contrast retention. MATERIALS AND

methodsIn this retrospective study, a total of 17 patients with a total of 55 marker lesions were recruited.

resultsThe area of tumour contrast retention can be matched to a hypometabolic area on subsequent PET-CT in over 36 lesions (65.5%). Out of the 55 lesions, a total of 38 marker lesions in 11 patients who also had pre-DEBIRI PET-CT were analyzed for disease response. 10 out of 10 lesions that had a complete response on PET-CT were found to demonstrate contrast retention throughout the tumour. 12 out of 13 (92.3%) tumours that had a partial metabolic response on PET-CT were found to demonstrate contrast uptake in the hypometabolic area only. In the 15 lesions that had progression/no response, 13 (86.6%) demonstrated no relationship between tumour contrast retention and tumour response. There was a significant correlation between contrast retention and disease response (

conclusionOur study showed that PET-CT response can be associated with post embolization contrast retention. The data suggests blood stasis, for which tumour contrast retention is a surrogate marker, is important for the PET-CT metabolic response. The authors propose that tumour contrast retention is an important embolization endpoint in DEBIRI.

Identifiers

PMID31781199
PMCPMC6874958
OpenAlexW2984309763

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.