Evidence map›Paper›PMID 24248771›Full record

ArticleJapanese journal of radiology2014

Kurtosis and skewness assessments of solid lung nodule density histograms: differentiating malignant from benign nodules on CT.

Ayano Kamiya, Sadayuki Murayama, Hisashi Kamiya, Tsuneo Yamashiro, Yasuji Oshiro, Nobuyuki Tanaka

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In one paragraph

Article in Japanese journal of radiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed.

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  11. Non-small cell lung cancer in China.Cancer communications (London, England) · 2022
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Radiomics in lung cancer for oncologists.Journal of clinical and translational research · 2020
    Article
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  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

6 authors.

Ayano KamiyaDepartment of Radiology, Graduate School of Medical Science, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, 903-0215, Japan, ayano1242004@yahoo.co.jp.
Sadayuki Murayama
Hisashi Kamiya
Tsuneo Yamashiro
Yasuji Oshiro
Nobuyuki Tanaka

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of our study was to assess pulmonary nodule characteristics using density histogram kurtosis and skewness and to distinguish malignant from benign nodules. MATERIALS AND

methodsNinety-three lung nodules on CT were analyzed, including 72 malignant and 21 benign nodules. They were completely solid or solid with limited ground-glass opacity. Based on their CT characteristics, nodules were categorized into type A, homogeneous nodules with uniform internal structures and clear margins, and type B, inhomogeneous nodules with heterogeneous structures or uneven margins. Kurtosis and skewness were calculated from density histograms to compare type A and B nodules and malignant and benign nodules. Receiver-operating characteristic (ROC) curves were generated to assess kurtosis and skewness for discriminating between different nodule types.

resultsType A nodules (n = 35) had greater kurtosis and reduced skewness (p < 0.001) compared to type B nodules (n = 58). Malignant tumor kurtosis was greater than that of benign nodules (type A, p < 0.05; type B, p = 0.001). Type B malignant tumors had reduced skewness compared to benign nodules (p < 0.05). ROC curves provided relatively high values for the area under the curve (0.71-0.83).

conclusionKurtosis and skewness assessments of density histograms may be useful for differentiating malignant from benign nodules.

Indexed as

Tomography, X-Ray ComputedAgedDiagnosis, DifferentialFemaleHumansLung NeoplasmsMaleROC CurveSolitary Pulmonary Nodule

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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.