Evidence map›Paper›PMID 26563350›Full record

ArticleEuropean radiology2016

Dual-Phase Dual-Energy CT in Patients Treated with Erlotinib for Advanced Non-Small Cell Lung Cancer: Possible Benefits of Iodine Quantification in Response Assessment.

Jan Baxa, Tana Matouskova, Gabriela Krakorova, Bernhard Schmidt, Thomas Flohr, Martin Sedlmair, Jiri Bejcek, Jiri Ferda

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Article in European radiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

28 citing papers in PubMed, 72 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

8 authors at 1 institution in 1 country.

Jan BaxaDepartment of Imaging Methods, Faculty of Medicine and University Teaching Hospital in Pilsen, Pilsen, Czech Republic. baxaj@fnplzen.cz.
Tana MatouskovaDepartment of Imaging Methods, Faculty of Medicine and University Teaching Hospital in Pilsen, Pilsen, Czech Republic.
Gabriela KrakorovaDepartment of Pulmonary Diseases, Faculty of Medicine and University Teaching Hospital in Pilsen, Pilsen, Czech Republic.
Bernhard SchmidtSiemens Healthcare, CT division, Forchheim, Germany.
Thomas FlohrSiemens Healthcare, CT division, Forchheim, Germany.
Martin SedlmairSiemens Healthcare, CT division, Forchheim, Germany.
Jiri BejcekDepartment of Imaging Methods, Faculty of Medicine and University Teaching Hospital in Pilsen, Pilsen, Czech Republic.
Jiri FerdaDepartment of Imaging Methods, Faculty of Medicine and University Teaching Hospital in Pilsen, Pilsen, Czech Republic.
Siemens Healthcare (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo investigate the relationship of dual-phase dual-energy CT (DE-CT) and tumour size in the evaluation of the response to anti-EGFR therapy in patients with advanced non-small cell lung cancer (NSCLC).

methodsDual-phase DE-CT was performed in 31 patients with NSCLC before the onset of anti-EGFR (erlotinib) therapy and as follow-up (mean 8 weeks). Iodine uptake (IU; mg/mL) was quantified using prototype software in arterial and venous phases; arterial enhancement fraction (AEF) was calculated. The change of IU before and after therapy onset was compared with anatomical evaluation in maximal transverse diameter and volume (responders vs. non-responders).

resultsA significant decrease of IU in venous phase was proved in responders according to all anatomical parameters (p=0.002-0.016). In groups of non-responders, a significant change of IU was not proved with variable trends of development. The most significant change was observed using the anatomical parameter of volume (cut-off 73 %). A significant difference of percentage change in AEF was proved between responding and non-responders (p=0.019-0.043).

conclusionDual-phase DE-CT with iodine uptake quantification is a feasible method with potential benefit in advanced assessment of anti-EGFR therapy response. We demonstrated a decrease in vascularization in the responding primary tumours and non-significant variable development of vascularization in non-responding tumours. KEY POINTS: • Dual-phase DE-CT is feasible for vascularization assessment of NSCLC with anti-EGFR therapy. • There was a significant decrease of iodine uptake in responding tumours. • There was a non-significant and variable development in non-responding tumours. • There was significant difference of AEF percentage change between responders and non-responders.

Indexed as

Neoplasm StagingAgedAntineoplastic AgentsCarcinoma, Non-Small-Cell LungErlotinib HydrochlorideFemaleHumansIodineLung NeoplasmsLymphatic MetastasisLymph NodesMaleMiddle AgedPositron-Emission TomographyReproducibility of ResultsTomography, X-Ray ComputedAntineoplastic AgentsErlotinib HydrochlorideIodineDual-energy CTIodine contrast mediumLung cancerTargeted molecular therapyTherapy response

Identifiers

PMID26563350
OpenAlexW2244306603

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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.