Evidence map›Paper›PMID 38760647›Full record

ArticleEmergency radiology2024

Does delayed phase imaging in CT angiography provide additional information in patients with suspected active bleeding?

Mihran Khdhir, Youssef Ghosn, Yara Jabbour, Nada Abbas, Ziad Tarcha, Mohamad Kayali, Riad Khouzami, Mustafa Natout, Nadim Muallem

Abstract read
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In one paragraph

Article in Emergency radiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

1 citing paper in PubMed.

  1. Article
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

9 authors.

Mihran KhdhirDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, USA.
Youssef GhosnDepartment of Diagnostic Radiology, American University of Beirut, Riad El-Solh, P.O. Box 11-0236, Bierut, 1107 2020, Lebanon.
Yara JabbourDepartment of Diagnostic Radiology, American University of Beirut, Riad El-Solh, P.O. Box 11-0236, Bierut, 1107 2020, Lebanon.
Nada AbbasAmerican University of Beirut, Bierut, Lebanon.
Ziad TarchaMallinckrodt Institute of Radiology, Washington University in St. Louis, St. Louis, USA.
Mohamad KayaliDepartment of Radiology, University of Iowa Hospital and Clinics, Lowa, USA.
Riad KhouzamiDepartment of Diagnostic Radiology, American University of Beirut, Riad El-Solh, P.O. Box 11-0236, Bierut, 1107 2020, Lebanon.
Mustafa NatoutDepartment of Diagnostic Radiology, American University of Beirut, Riad El-Solh, P.O. Box 11-0236, Bierut, 1107 2020, Lebanon.
Nadim MuallemDepartment of Diagnostic Radiology, American University of Beirut, Riad El-Solh, P.O. Box 11-0236, Bierut, 1107 2020, Lebanon. nm53@aub.edu.lb.ORCID http://orcid.org/0000-0001-9113-2612

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe hypothesize that delayed phase imaging does not provide additional diagnostic information in patients who undergo multi-phasic CTA for suspected active bleeding.

methodsData on patients who underwent multiphasic CTA (pre-contrast, arterial, porto-venous, and delayed phases) for suspected acute bleed were retrospectively collected between January 2019 and November 2021. CTA images were reviewed by a general radiologist, an interventional radiologist, and a body imaging radiologist independently. Each reader evaluated if delayed phase images provided additional information that would change the final impression of the CTA report. Additional information regarding bleeding location, time needed for delayed image acquisition, and radiation exposure were also obtained.

resultsA total of 104 patients with CTAs were analyzed with an average age of 58 years ± 22. Studies rated with absent additional findings on delayed images were 102 (98.1%) by the interventional radiologist, 101 (97.1%) by the body imaging radiologist, and 100 (96.1%) by the general radiologist with percent agreement of 96.15% (kappa 0.54, p < 0.001). All the findings were characterized as unlikely to be clinically significant. Mean time added to complete a delayed phase images was 3.61 ± 3.4 min. The average CT dose length product (DLP) for the total exam was 3621.78 ± 2129.57 mGy.cm with delayed acquisition adding a mean DLP of 847.75 ± 508.8 mGy.cm.

conclusionDelayed phase imaging does not provide significant additional diagnostic information in evaluating patients with suspected active bleeding but is associated with increased examination time and radiation exposure.

Indexed as

Computed Tomography AngiographyContrast MediaHemorrhageAgedFemaleHumansMaleMiddle AgedRetrospective StudiesContrast MediaActive bleedCT protocolDelayed phase imagingRadiation doseTrauma

Identifiers

PMID38760647

What OpenQuestion holds

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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.