Evidence map›Paper›PMID 34270966›Full record

ArticleChest2021

Quantification of Arterial and Venous Morphologic Markers in Pulmonary Arterial Hypertension Using CT Imaging.

Farbod N Rahaghi, Pietro Nardelli, Eileen Harder, Inderjit Singh, Gonzalo Vegas Sánchez-Ferrero, James C Ross, Rubén San José Estépar, Samuel Y Ash, Andetta R Hunsaker, Bradley A Maron and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Chest, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 3 institutions in 1 country.

Farbod N RahaghiPulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA. Electronic address: frahaghi@bwh.harvard.edu.
Pietro NardelliDepartment of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Eileen HarderPulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Inderjit SinghPulmonary, Critical Care and Sleep, Yale School of Medicine, New Haven, CT.
Gonzalo Vegas Sánchez-FerreroDepartment of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
James C RossDepartment of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Rubén San José EstéparDepartment of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Samuel Y AshPulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Andetta R HunsakerDepartment of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Bradley A MaronDivision of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Jane A LeopoldDivision of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Aaron B WaxmanPulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Raúl San José EstéparDepartment of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
George R WashkoPulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Brigham and Women's Hospital · USHarvard University · USYale University · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
The clinical impact of pulmonary vascular remodeling in smokersR01HL116473 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SAN JOSE ESTEPAR, RAUL, WASHKO, GEORGE R · 2013 to 2021
$5.0M
Prognostic Markers of Emphysema ProgressionR01HL149877 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SAN JOSE ESTEPAR, RAUL · 2020 to 2023
$2.8M
Intergrated Endothelial Phenotyping to Redefine Pulmonary HypertensionU01HL125215 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI LEOPOLD, JANE A, WAXMAN, AARON B · 2014 to 2018
$1.7M
Computed Tomographic Insights Into Pulmonary HypertensionK23HL136905 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI RAHAGHI, FARBOD NICHOLAS · 2017 to 2021
$1.1M
Characterization of Early Response to Chronic Lung Injury using Chest CTK08HL145118 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI ASH, SAMUEL · 2019 to 2022
$681k
NCATS NIH HHS UL1 TR001863NHLBI NIH HHS K08 HL145118NHLBI NIH HHS K23 HL136905NHLBI NIH HHS L30 HL134158NHLBI NIH HHS R01 HL116473NHLBI NIH HHS R01 HL149877NHLBI NIH HHS U01 HL125215
6 · The paper itself

Abstract

backgroundPulmonary hypertension is a heterogeneous disease, and a significant portion of patients at risk for it have CT imaging available. Advanced automated processing techniques could be leveraged for early detection, screening, and development of quantitative phenotypes. Pruning and vascular tortuosity have been previously described in pulmonary arterial hypertension (PAH), but the extent of these phenomena in arterial vs venous pulmonary vasculature and in exercise pulmonary hypertension (ePH) have not been described. RESEARCH QUESTION: What are the arterial and venous manifestations of pruning and vascular tortuosity using CT imaging in PAH, and do they also occur in ePH? STUDY DESIGN AND

methodsA cohort of patients with PAH and ePH and control subjects with available CT angiograms were retrospectively identified to examine the differential arterial and venous presence of pruning and tortuosity in patients with precapillary pulmonary hypertension not confounded by lung or thromboembolic disease. The pulmonary vasculature was reconstructed, and an artificial intelligence method was used to separate arteries and veins and to compute arterial and venous vascular volumes and tortuosity.

resultsA total of 42 patients with PAH, 12 patients with ePH, and 37 control subjects were identified. There was relatively lower (median [interquartile range]) arterial small vessel volume in subjects with PAH (PAH 14.7 [11.7-16.5; P < .0001]) vs control subjects (16.9 [15.6-19.2]) and venous small vessel volume in subjects with PAH and ePH (PAH 8.0 [6.5-9.6; P < .0001]; ePH, 7.8 [7.5-11.4; P = .004]) vs control subjects (11.5 [10.6-12.2]). Higher large arterial volume, however, was only observed in the pulmonary arteries (PAH 17.1 [13.6-23.4; P < .0001] vs control subjects 11.4 [8.1-15.4]). Similarly, tortuosity was higher in the pulmonary arteries in the PAH group (PAH 3.5 [3.3-3.6; P = .0002] vs control 3.2 [3.2-3.3]).

interpretationLower small distal pulmonary vascular volume, higher proximal arterial volume, and higher arterial tortuosity were observed in PAH. These can be quantified by using automated techniques from clinically acquired CT scans of patients with ePH and resting PAH.

Indexed as

Tomography, X-Ray ComputedAdultAgedFemaleHumansMaleMiddle AgedPulmonary Arterial HypertensionPulmonary ArteryPulmonary VeinsRespiratory Function TestsRetrospective StudiesarterialCT imagingexercise pulmonary hypertensionpulmonary arterial hypertensiontortuosityvenous

Identifiers

PMID34270966
PMCPMC8692106
OpenAlexW3181753384

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.