Evidence map›Paper›PMID 26821631›Full record

ArticleJournal of the American College of Cardiology2016

Blood Oxygenation Level-Dependent CMR-Derived Measures in Critical Limb Ischemia and Changes With Revascularization.

Adnan Bajwa, Roman Wesolowski, Ashish Patel, Prakash Saha, Francesca Ludwinski, Mohammed Ikram, Mostafa Albayati, Alberto Smith, Eike Nagel, Bijan Modarai

Open access · hybridAbstract read
In one paragraph

Article in Journal of the American College of Cardiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 6% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Society for Cardiovascular Magnetic Resonance (SCMR) expert consensus for CMR imaging endpoints in clinical research: part I - analytical validation and clinical qualification.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2018
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  5. Intra-arterial Fractional Flow Reserve Measurements Provide an Objective Assessment of the Functional Significance of Peripheral Arterial Stenoses.European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Adnan BajwaAcademic Department of Vascular Surgery, Cardiovascular Division, King's College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom.
Roman WesolowskiDepartment of Cardiovascular Imaging, Division of Imaging Sciences and Biomedical Engineering, King's College London, BHF Centre of Research Excellence, Wellcome Trust-EPSRC Medical Engineering Centre & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom.
Ashish PatelAcademic Department of Vascular Surgery, Cardiovascular Division, King's College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom.
Prakash SahaAcademic Department of Vascular Surgery, Cardiovascular Division, King's College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom.
Francesca LudwinskiAcademic Department of Vascular Surgery, Cardiovascular Division, King's College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom.
Mohammed IkramAcademic Department of Vascular Surgery, Cardiovascular Division, King's College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom.
Mostafa AlbayatiAcademic Department of Vascular Surgery, Cardiovascular Division, King's College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom.
Alberto SmithAcademic Department of Vascular Surgery, Cardiovascular Division, King's College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom.
Eike NagelDepartment of Cardiovascular Imaging, Division of Imaging Sciences and Biomedical Engineering, King's College London, BHF Centre of Research Excellence, Wellcome Trust-EPSRC Medical Engineering Centre & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom; Institute for Experimental and Translational Cardiovascular Imaging, DZHK Centre for Cardiovascular Imaging, University Hospital Frankfurt, Goethe University Frankfurt, Frankfurt am Main, Germany.
Bijan ModaraiAcademic Department of Vascular Surgery, Cardiovascular Division, King's College London, BHF Centre of Research Excellence & NIHR Biomedical Research Centre at King's Health Partners, St. Thomas' Hospital, London, United Kingdom. Electronic address: bijan.modarai@kcl.ac.uk.
St Thomas' Hospital · GBKing's College London · GBKings Health Partners · GBWellcome Trust · GB

Funding

British Heart Foundation FS/11/37/28819British Heart Foundation FS/13/74/30425
6 · The paper itself

Abstract

backgroundUse of blood oxygenation level-dependent cardiovascular magnetic resonance (BOLD-CMR) to assess perfusion in the lower limb has been hampered by poor reproducibility and a failure to reliably detect post-revascularization improvements in patients with critical limb ischemia (CLI).

objectivesThis study sought to develop BOLD-CMR as an objective, reliable clinical tool for measuring calf muscle perfusion in patients with CLI.

methodsThe calf was imaged at 3-T in young healthy control subjects (n = 12), age-matched control subjects (n = 10), and patients with CLI (n = 34). Signal intensity time curves were generated for each muscle group and curve parameters, including signal reduction during ischemia (SRi) and gradient during reactive hyperemia (Grad). BOLD-CMR was used to assess changes in perfusion following revascularization in 12 CLI patients. Muscle biopsies (n = 28), obtained at the level of BOLD-CMR measurement and from healthy proximal muscle of patients undergoing lower limb amputation (n = 3), were analyzed for capillary-fiber ratio.

resultsThere was good interuser and interscan reproducibility for Grad and SRi (all p < 0.0001). The ischemic limb had lower Grad and SRi compared with the contralateral asymptomatic limb, age-matched control subjects, and young control subjects (p < 0.001 for all comparisons). Successful revascularization resulted in improvement in Grad (p < 0.0001) and SRi (p < 0.0005). There was a significant correlation between capillary-fiber ratio (p < 0.01) in muscle biopsies from amputated limbs and Grad measured pre-operatively at the corresponding level.

conclusionsBOLD-CMR showed promise as a reliable tool for assessing perfusion in the lower limb musculature and merits further investigation in a clinical trial.

Indexed as

AdultAgedAged, 80 and overAngioplastyBiopsyDisease ProgressionFemaleFollow-Up StudiesHumansIschemiaLegMagnetic Resonance ImagingMaleMiddle AgedMuscle, SkeletalOxygenOxygenangioplastycardiovascular magnetic resonanceperfusionsurgery

Identifiers

PMID26821631
PMCPMC4728170
OpenAlexW2250197420

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.