Evidence map›Paper›PMID 29725833›Full record

ArticleEuropean radiology2018

Oesophageal squamous cell carcinoma: histogram-derived ADC parameters are not predictive of tumour response to chemoradiotherapy.

Maiko Kozumi, Hideki Ota, Takaya Yamamoto, Rei Umezawa, Haruo Matsushita, Yojiro Ishikawa, Noriyoshi Takahashi, Tomonori Matsuura, Kei Takase, Keiichi Jingu

Abstract 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 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  6. Exploratory radiomic features from integratedEuropean journal of nuclear medicine and molecular imaging · 2019
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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.

Maiko KozumiDepartment of Radiology, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1 Fukumuro, Miyagino-ku, Sendai, Miyagi, Japan. drmk2009@yahoo.co.jp.ORCID http://orcid.org/0000-0002-7572-333X
Hideki OtaDepartment of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
Takaya YamamotoDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
Rei UmezawaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
Haruo MatsushitaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
Yojiro IshikawaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
Noriyoshi TakahashiDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
Tomonori MatsuuraDepartment of Radiology, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1 Fukumuro, Miyagino-ku, Sendai, Miyagi, Japan.
Kei TakaseDepartment of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
Keiichi JinguDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate correlations between tumour response to definitive chemoradiotherapy (CRT) in oesophageal squamous cell carcinoma (SCC) and histogram-derived apparent diffusion coefficient (ADC) parameters on diffusion-weighted MR images.

methodsForty patients with clinical T3-4 oesophageal SCC underwent concurrent CRT. MR examination at 3 T was performed 1-3 days prior to CRT. Readout-segmented echo-planar diffusion imaging was used to acquire ADC maps. Pre- and post-treatment CT examinations were performed. Histogram parameters (mean, 10th, 25th, 50th, 75th, 90th percentiles, skewness and kurtosis) of the ADC values were compared with post-treatment disease status based on RECIST and the tumour regression ratio.

resultsNone of the ADC parameters showed significant correlation with post-treatment status (range of Spearman's ρ values - 0.19 to 0.14, range of p values 0.22-0.47) or tumour regression ratio (range of Spearman's ρ values - 0.045 to 0.18, range of p values 0.26-0.96). Neither progression-free survival (PFS) (p = 0.17) nor overall survival (OS) (p = 0.15) was significantly different between the two groups corresponding to the lower (< median) and upper arms (≥ median) of the mean ADC values.

conclusionsHistogram-derived pretreatment ADC parameters were not predictive imaging biomarkers for tumour response to CRT in patients with oesophageal SCC. KEY POINTS: • Apparent diffusion coefficient (ADC) values are derived from diffusion-weighted MR imaging. • High-resolution diffusion-weighted images are generated by readout-segmented echo-planar diffusion imaging. • Readout-segmented echo-planar diffusion-weighted imaging enabled evaluation of ADC parameters. • Pretreatment ADC parameters do not predict chemoradiotherapy response in patients with oesophageal carcinoma.

Indexed as

Esophageal Squamous Cell CarcinomaAgedAged, 80 and overBiomarkers, TumorChemoradiotherapyDiffusion Magnetic Resonance ImagingEcho-Planar ImagingFemaleHumansMaleMiddle AgedPredictive Value of TestsProgression-Free SurvivalBiomarkers, TumorChemoradiotherapyDiffusion-weighted imagingMagnetic resonance imagingOesophageal cancerResponse Evaluation Criteria in Solid Tumours

Identifiers

PMID29725833
PMCPMC6132721

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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.