Evidence map›Paper›PMID 30166429›Full record

ArticleAJNR. American journal of neuroradiology2018

Negative Predictive Value of NI-RADS Category 2 in the First Posttreatment FDG-PET/CT in Head and Neck Squamous Cell Carcinoma.

P Wangaryattawanich, B F Branstetter, M Hughes, D A Clump, D E Heron, T J Rath

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.1field-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

14 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Diagnostic Performance of Ultrasound in Neck Node NI-RADS Category 2.AJNR. American journal of neuroradiology · 2025
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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

6 authors at 4 institutions in 4 countries.

P WangaryattawanichFrom the Departments of Radiology (P.W, B.F.B., M.H., T.J.R.).ORCID 0000-0002-7067-8592
B F BranstetterFrom the Departments of Radiology (P.W, B.F.B., M.H., T.J.R.).ORCID 0000-0002-8502-6909
M HughesFrom the Departments of Radiology (P.W, B.F.B., M.H., T.J.R.).ORCID 0000-0003-2059-2739
D A ClumpRadiation Oncology (D.A.C., D.E.H.), University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.ORCID 0000-0003-3734-9612
D E HeronRadiation Oncology (D.A.C., D.E.H.), University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.ORCID 0000-0001-6282-1806
T J RathFrom the Departments of Radiology (P.W, B.F.B., M.H., T.J.R.) rathtj@upmc.edu.ORCID 0000-0002-0359-7055
Research Institute of Radiology · BYUniversity of Pittsburgh · USBoston Biomedical (United States) · USPt. Jawahar Lal Nehru Memorial Medical College · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeFDG PET/CT has a high negative predictive value in patients with head and neck squamous cell carcinoma who responds completely to non-operative therapy. However, the treatment failure rate in patients with a partial but incomplete response is unclear. Our aim was to investigate the negative predictive value of the first posttreatment FDG-PET/CT in patients with head and neck squamous cell carcinoma with incomplete response interpreted as Neck Imaging Reporting and Data System (NI-RADS) category 2. MATERIALS AND

methodsWe retrospectively identified patients with head and neck squamous cell carcinoma treated with chemoradiation or radiation therapy with curative intent in our institution between 2008 and 2016. We included patients whose first posttreatment FDG-PET/CT was interpreted as showing marked improvement of disease but who had a mild residual mass or FDG avidity in either the primary tumor bed or lymph nodes (NI-RADS 2). The negative predictive value of FDG-PET/CT was calculated, including the 95% CI, using the Newcombe method. Two-year disease-free survival was the reference standard.

resultsSeventeen of 110 patients (15%) experienced locoregional treatment failure within 2 years of completing treatment, yielding a negative predictive value of 85% (95% Cl, 77%-90%). The most common location of tumor recurrence was the cervical lymph nodes (59%). The median time interval between completion of therapy and treatment failure was 10 months (range, 5-24 months).

conclusionsIn patients with an incomplete response after treatment of head and neck squamous cell carcinoma, the negative predictive value of the first posttreatment FDG-PET/CT was 85%, which is lower than the 91% negative predictive value of FDG-PET/CT in patients with an initial complete response. Patients with an incomplete response (NI-RADS 2) should undergo more frequent clinical and imaging surveillance than patients with an initial complete response (NI-RADS 1).

Indexed as

AdultAgedChemoradiotherapyDisease-Free SurvivalFemaleFluorodeoxyglucose F18HumansMaleMiddle AgedNeoplasm Recurrence, LocalPositron Emission Tomography Computed TomographyPredictive Value of TestsRetrospective StudiesSquamous Cell Carcinoma of Head and NeckTreatment FailureFluorodeoxyglucose F18

Identifiers

PMID30166429
PMCPMC7410732
OpenAlexW2889539233

What OpenQuestion holds

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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.