Evidence map›Paper›PMID 40757096›Full record

ArticleActa radiologica open2025

MRI T1 relaxation time for evaluating early complete response to neoadjuvant treatment in rectal cancer: measurement at six weeks - a protocol article.

Mathias Rosenfeldt Byriel, Torben Frøstrup Hansen, Hans Bjarke Rahr, Lars Henrik Jensen, Signe Timm, Jan Lindebjerg, Mazen Schnefeldt, Søren Rafael Rafaelsen

Abstract read
In one paragraph

Article in Acta radiologica open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

8 authors.

Mathias Rosenfeldt ByrielDepartment of Radiology, University Hospital of Southern Denmark, Vejle, Denmark.ORCID https://orcid.org/0000-0002-7538-3697
Torben Frøstrup HansenDepartment of Regional Health Research, University of Southern Denmark, Odense, Denmark.ORCID https://orcid.org/0000-0001-7476-671X
Hans Bjarke RahrDepartment of Regional Health Research, University of Southern Denmark, Odense, Denmark.ORCID https://orcid.org/0000-0002-2560-1772
Lars Henrik JensenDepartment of Regional Health Research, University of Southern Denmark, Odense, Denmark.ORCID https://orcid.org/0000-0002-0020-1537
Signe TimmDepartment of Regional Health Research, University of Southern Denmark, Odense, Denmark.ORCID https://orcid.org/0000-0002-5862-7784
Jan LindebjergDepartment of Regional Health Research, University of Southern Denmark, Odense, Denmark.ORCID https://orcid.org/0000-0002-2055-4241
Mazen SchnefeldtDepartment of Radiology, University Hospital of Southern Denmark, Vejle, Denmark.
Søren Rafael RafaelsenDepartment of Radiology, University Hospital of Southern Denmark, Vejle, Denmark.ORCID https://orcid.org/0000-0001-5182-5545

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Management of rectal cancer requires accurate staging and treatment. Neoadjuvant chemoradiotherapy offers tumour size reduction and mitigation of the risk of local relapse. Patients with complete response to neoadjuvant treatment can be enclosed in watchful waiting (WW). Recent studies have explored magnetic resonance imaging (MRI) T1 relaxation time (T1RT) as a predictive biomarker for treatment response in rectal cancer. Preliminary findings indicate that lower T1RT correlates with pathologic complete response. However, inclusion of patients in WW remains unexplored. Purpose: This prospective study aims to investigate T1RT 6 weeks after neoadjuvant treatment and the ability to determine complete response. Material and methods: MRI scans are conducted on a 1.5 T MRI-unit. T1RT is measured at time of diagnosis and 6 weeks after neoadjuvant treatment. Experienced radiologists analyse T1RT using specialised software. Treatment decisions are made in multidisciplinary team conferences based on tumour staging. Endpoints include tumour visibility on MRI and endoscopy, along with histopathological analysis of surgical specimens. Statistical methods include Results: Data analysis begins in winter 2025. Results are planned to be submitted in spring 2026. Conclusion: The implications of this study extend to the potential refinement of treatment strategies, offering patients the prospect of improved outcomes and the potential avoidance of surgery-associated risks. We expect to find a lower relaxation time in fibrotic tissue compared to non-responsive cancerous tissue after 6 weeks.

Indexed as

magnetic resonance imagingneoadjuvant treatmentrectal cancerT1 relaxation timewatchful waiting

Identifiers

PMID40757096
PMCPMC12317158

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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.