Evidence map›Paper›PMID 33688178›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Quantitative CT Analysis of Small Airway Remodeling in Patients with Chronic Obstructive Pulmonary Disease by a New Image Post-Processing System.

Shuyi Qin, Xinjuan Yu, Qianli Ma, Li Lin, Qinghai Li, Hong Liu, Lei Zhang, Shuguang Leng, Wei Han

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease. 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 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 15% 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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Shuyi Qin *Department of Pulmonary and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong, People's Republic of China.ORCID 0000-0002-4861-4998
Xinjuan Yu *Department of Pulmonary and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong, People's Republic of China.ORCID 0000-0003-1340-092X
Qianli Ma *Department of Radiology, Qingdao Municipal Hospital, Qingdao, Shandong, People's Republic of China.
Li LinDepartment of Pulmonary Medicine, Shandong Provincial Chest Hospital, Jinan, Shandong, People's Republic of China.
Qinghai LiDepartment of Pulmonary and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong, People's Republic of China.
Hong LiuDepartment of Pulmonary and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong, People's Republic of China.
Lei ZhangDepartment of Hospital Infection, Qingdao Municipal Hospital, Qingdao, Shandong, People's Republic of China.
Shuguang LengDepartment of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, NM, USA.
Wei HanDepartment of Pulmonary and Critical Care Medicine, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong, People's Republic of China.ORCID 0000-0003-3508-0103
Qingdao University · CNShandong Chest Hospital · CNUniversity of New Mexico · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo explore a practical marker for quantitatively analyzing the small airway remodeling in COPD by HRCT. PATIENTS AND

methodsTwenty-four patients with COPD (GOLD I, n = 7; GOLD II, n = 8; GOLD III+IV, n = 9) and 14 healthy controls (7 normal pulmonary function; 7 small-airway disease (SAD)) were enrolled in the study as five groups, GOLD I, GOLD II, GOLD III+IV, normal and SAD. All subjects underwent HRCT and spirometry. With ISP 9.0, whole emphysema index (EI) and the airway parameters, including wall area (WA), lumen area (LA), airway area (AA) of the 3rd, 5th and 9th generations of bronchi, were measured successively. The ratio of LA/AA and WA/AA in the 3rd, 5th and 9th generations of bronchi were calculated and compared among groups.

resultsFor the five groups, EI was increased only in GOLD III+IV group (

conclusionSmall airway remodeling has occurred in the early stage of COPD, while emphysema in the late stage of COPD. The 9-LA/AA and 9-WA/AA are accurate and practical markers for small airway remodeling of COPD.

Indexed as

Pulmonary Disease, Chronic ObstructivePulmonary EmphysemaAirway RemodelingHumansRespiratory Function TestsTomography, X-Ray ComputedCOPDemphysema indexhigh-resolution CTpulmonary function test

Identifiers

PMID33688178
PMCPMC7936712
OpenAlexW3133937314

What Socratic holds

Textmetadata
LicenceCC BY-NC
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 Socratic graph.