Evidence map›Paper›PMID 28149545›Full record

ArticleJournal of thoracic disease2016

Segmental bronchi collapsibility: computed tomography-based quantification in patients with chronic obstructive pulmonary disease and correlation with emphysema phenotype, corresponding lung volume changes and clinical parameters.

Christopher Kloth, Wolfgang Maximilian Thaiss, Hendrik Ditt, Jürgen Hetzel, Eva Schülen, Konstantin Nikolaou, Marius Horger

Open access · hybridAbstract read
In one paragraph

Article in Journal of thoracic disease, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.0field-weighted citation impact, top 20% 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

3 citing papers in PubMed, 9 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

7 authors at 2 institutions in 1 country.

Christopher KlothDepartment of Diagnostic and Interventional Radiology, Eberhard-Karls-University, 72076 Tübingen, Germany.
Wolfgang Maximilian ThaissDepartment of Diagnostic and Interventional Radiology, Eberhard-Karls-University, 72076 Tübingen, Germany.
Hendrik DittSiemens AG Healthcare, Imaging & Therapy Systems Computed Tomography & Radiation Oncology, HC IM CR R&D PA CA DC, 91301 Forchheim, Germany.
Jürgen HetzelDepartment of Internal Medicine II, Eberhard-Karls-University, 72076 Tübingen, German.
Eva SchülenDepartment of Internal Medicine II, Eberhard-Karls-University, 72076 Tübingen, German.
Konstantin NikolaouDepartment of Diagnostic and Interventional Radiology, Eberhard-Karls-University, 72076 Tübingen, Germany.
Marius HorgerDepartment of Diagnostic and Interventional Radiology, Eberhard-Karls-University, 72076 Tübingen, Germany.
University of Tübingen · DESiemens Healthcare (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlobal pulmonary function tests lack region specific differentiation that might influence therapy in severe chronic obstructive pulmonary disease (COPD) patients. Therefore, the aim of this work was to assess the degree of expiratory 3

methodsThin-slice chest-CTs acquired at end-inspiration & end-expiration in 42 COPD GOLD IV patients (19 females, median-age: 65.9 y) from November 2011 to July 2014 were re-evaluated. The cross-sectional area of all segmental bronchi was measured 5 mm below the bronchial origin in both examinations. Lung lobes were semi-automatically segmented, volumes calculated at end-inspiratory and end-expiratory phase and visually defined emphysema-phenotypes defined. Results of CT densitometry were compared with lung functional tests including forced expiratory volume at 1 s (FEV

resultsMean expiratory bronchial collapse was 31%, stronger in lobes with homogenous (38.5%)

conclusionsChanges in collapsibility of 3

Indexed as

Chronic obstructive pulmonary disease (COPD)computed tomography (CT)emphysemalung volume

Identifiers

PMID28149545
PMCPMC5227245
OpenAlexW2571394934

What OpenQuestion holds

Textmetadata
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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.