Evidence map›Paper›PMID 29959456›Full record

ArticleEuropean radiology2019

Low morphometric complexity of emphysematous lesions predicts survival in chronic obstructive pulmonary disease patients.

Jeongeun Hwang, Yeon-Mok Oh, Minho Lee, Seunghyun Choi, Joon Beom Seo, Sang Min Lee, Namkug Kim

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Article in European radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

7 authors.

Jeongeun HwangAsan Institute for Life Sciences, Asan Medical Center, Seoul, Republic of Korea.
Yeon-Mok OhDepartment of Pulmonary and Critical Care Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
Minho LeeBiomedical Engineering Research Center, Asan Institute of Life Sciences, Asan Medical Center, Seoul, Republic of Korea.
Seunghyun ChoiDepartment of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Seoul, 05505, Republic of Korea.
Joon Beom SeoDepartment of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Seoul, 05505, Republic of Korea.
Sang Min LeeDepartment of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Seoul, 05505, Republic of Korea. sangmin.lee.md@gmail.com.ORCID http://orcid.org/0000-0001-7627-2000
Namkug KimDepartment of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88, Olympic-ro 43-gil, Seoul, 05505, Republic of Korea. namkugkim@gmail.com.

Funding

National Research Foundation of Korea NRF-2016R1D1A1A02937317
6 · The paper itself

Abstract

objectivesTo investigate whether morphometric complexity in the lung can predict survival and act as a new prognostic marker in patients with chronic obstructive pulmonary disease (COPD).

methodsCOPD (n = 302) patients were retrospectively reviewed. All patients underwent volumetric computed tomography and pulmonary function tests at enrollment (2005-2015). For complexity analysis, we applied power law exponent of the emphysema size distribution (D

resultsPatients were 66 ± 6 years old, had 41 ± 28 pack-years' smoking history and variable GOLD stages (n = 20, 153, 108 and 21 in stages I-IV). The median follow-up time was 6.1 years (range: 0.2-11.6 years). Sixty-three patients (20.9%) died, of whom 35 died of lung-related causes. In univariate Cox analysis, lower D

conclusionsLow morphometric complexity in the lung is a predictor of survival in patients with COPD. KEY POINTS: • A newly suggested method for quantifying lung morphometric complexity is feasible. • Morphometric complexity measured on chest CT images predicts COPD patients' survival. • Complexity, diffusing capacity and emphysema index contribute similarly to the survival model.

Indexed as

AgedAged, 80 and overFemaleFollow-Up StudiesFractalsHumansKaplan-Meier EstimateLungMaleMiddle AgedMultivariate AnalysisPrognosisPulmonary Diffusing CapacityPulmonary Disease, Chronic ObstructivePulmonary EmphysemaRespiratory Function TestsCOPDEmphysemaFractalsLungSurvival

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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.