Evidence map›Paper›PMID 34326102›Full record

ArticleAJNR. American journal of neuroradiology2021

Dual-Layer Spectral CT Imaging of Upper Aerodigestive Tract Cancer: Analysis of Spectral Imaging Parameters and Impact on Tumor Staging.

C C-T Hsu, C Jeavon, I Fomin, L Du, C Buchan, T W Watkins, Y Nae, N M Parry, R I Aviv

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.6field-weighted citation impact, top 37% 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

8 citing papers in PubMed, 8 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

9 authors at 5 institutions in 5 countries.

C C-T HsuFrom the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.) charlie.ct.hsu@gmail.com.ORCID 0000-0003-0803-593X
C JeavonFrom the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.).
I FominFrom the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.).ORCID 0000-0003-0930-8573
L DuDepartment of Medical Imaging and Division of Nuclear Medicine (L.D.), and Department of Medical Imaging, Gold Coast University Hospital, Queensland, Australia.ORCID 0000-0002-4996-7701
C BuchanFrom the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.).ORCID 0000-0002-9387-131X
T W WatkinsDepartment of Medical Imaging (T.W.W.), Princess Alexandra Hospital, Queensland, Australia.ORCID 0000-0001-8027-2118
Y NaePhilips Healthcare (Y.N.), Haifa, Israel.ORCID 0000-0002-4951-0779
N M ParryFrom the Division of Neuroradiology (C.C.-T.H., C.J., I.F., C.B., N.M.P.).ORCID 0000-0002-1753-5672
R I AvivDivision of Neuroradiology (R.I.A.), Department of Medical Imaging, The Ottawa Hospital, University of Ottawa, Ontario, Canada.ORCID 0000-0003-0259-970X
Anna Needs Neuroblastoma Answers · USGold Coast Hospital · AUPhilips (Finland) · FIPrincess Alexandra Hospital · AUUniversity of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeDual-layer spectral CT is a novel technology that utilized conventional single-tube CT acquisition with a dual-layer detector for the separation of high and low-energy photons to create spectral data for material decomposition. We evaluated the spectral parameters of iodine density and Z-effective values in primary head and neck squamous cell carcinoma and determined its impact on local tumor staging. MATERIALS AND

methodsTwenty-one patients with primary head and neck squamous cell carcinoma and 15 healthy controls were retrospectively evaluated. Iodine density (milligram/milliliter) and Z-effective values were compared quantitatively between head and neck squamous cell carcinoma and normal neck mucosa. The receiver operating characteristic area under the curve determined the diagnostic performance of the spectral data for local staging. We compared conventional CT images without and with iodine density and Z-effective images to determine its impact on local tumor staging.

resultsPrimary head and neck squamous cell carcinoma showed higher mean iodine density (2.01 [SD, 0.26] mg/mL,

conclusionsDual-layer spectral iodine density and Z-effective values provided increased quantitative and qualitative differentiation between upper aerodigestive head and neck squamous cell carcinoma and normal mucosa. Increased tissue differentiation improved the local tumor staging accuracy.

Indexed as

Head and Neck NeoplasmsIodineHumansNeoplasm StagingRetrospective StudiesSquamous Cell Carcinoma of Head and NeckTomography, X-Ray ComputedIodine

Identifiers

PMID34326102
PMCPMC8423050
OpenAlexW3184661915

What OpenQuestion holds

Textmetadata
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.