Evidence map›Paper›PMID 29961590›Full record

ArticleThe Journal of thoracic and cardiovascular surgery2018

Computed tomography features of resected lung adenocarcinomas with spread through air spaces.

Gouji Toyokawa, Yuichi Yamada, Tetsuzo Tagawa, Takeshi Kamitani, Yuzo Yamasaki, Mototsugu Shimokawa, Yoshinao Oda, Yoshihiko Maehara

Open access · bronzeAbstract readVideo-Audio Media
PubMed Publisher
In one paragraph

Article in The Journal of thoracic and cardiovascular surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 2 pooled it
8.1field-weighted citation impact, top 2% 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

74 citing papers in PubMed, 2 syntheses or guidelines pooled it, 107 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. CT feature-based nomogram for predicting tumor spread through air spaces in stage IA lung adenocarcinoma.Cancer imaging : the official publication of the International Cancer Imaging Society · 2025
    Article

14 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Gouji ToyokawaDepartment of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. Electronic address: gouji104kawa@gmail.com.
Yuichi YamadaDepartment of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Tetsuzo TagawaDepartment of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Takeshi KamitaniDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Yuzo YamasakiDepartment of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Mototsugu ShimokawaClinical Research Institute, National Kyushu Cancer Center, Fukuoka, Japan.
Yoshinao OdaDepartment of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Yoshihiko MaeharaDepartment of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Kyushu University · JPNational Hospital Organization Kyushu Cancer Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSpread through air spaces (STAS) is a recently recognized invasive pattern of lung cancer defined as "micropapillary clusters, solid nests, or single cells beyond the edge of the tumor into air spaces." Since STAS has been shown to be a significant prognosticator for the postoperative survival, predicting STAS preoperatively by computed tomography (CT) might help determine the optimum surgical procedures.

methodsInformation on STAS and preoperative CT was available in 327 patients with resected lung adenocarcinomas. STAS was defined as tumor cells within air spaces in the lung parenchyma beyond the edge of the main tumor. The association of STAS with CT characteristics, such as vascular convergence, ground-glass opacity (GGO), air bronchogram, notch, pleural indentation, spiculation, and cavitation, was analyzed.

resultsAmong the 327 patients with resected adenocarcinoma, 191 (58.4%) were positive for STAS. A univariable analysis demonstrated that STAS-positive adenocarcinomas were significantly associated with a larger radiologic tumor diameter (P = .02), the presence of vascular convergence (P < .01), notch (P < .01), pleural indentation (P = .03), spiculation (P < .01), and the absence of GGO (P < .01) compared with STAS-negative ones. In a multivariable analysis, the presence of notch (P = .01) and the absence of GGO (P < .01) were shown to be significantly associated with the STAS phenomenon. The odds ratio for STAS of notch-positive and GGO-negative adenocarcinomas against notch-negative and GGO-positive ones was 5.01 (P < .01).

conclusionsThe presence of notch and the absence of GGO were independently associated with the STAS phenomenon. These results will prove helpful in identifying STAS-positive adenocarcinoma by CT before surgical resection.

Indexed as

Tomography, X-Ray ComputedAdenocarcinoma of LungAdultAgedAged, 80 and overClinical Decision-MakingFemaleHumansLung NeoplasmsMaleMiddle AgedNeoplasm InvasivenessNeoplasm StagingPneumonectomyPredictive Value of TestsRetrospective Studiescomputed tomographylung adenocarcinomaspread through air spacessurgery

Identifiers

PMID29961590
OpenAlexW2806484138

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.