Evidence map›Paper›PMID 27055494›Full record

ArticleThe British journal of radiology2016

Diagnosing venous thromboembolism in pregnancy.

Thomas Grüning, Rebecca E Mingo, Matthew G Gosling, Sally L Farrell, Brent E Drake, Robert J Loader, Richard D Riordan

Open access · greenAbstract readComparative Study
In one paragraph

Article in The British journal of radiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Pulmonary Considerations for Pregnant Women.Clinics in chest medicine · 2021
    Review
  4. Article
  5. Article
  6. Pregnancy and Pulmonary Embolism.Clinics in chest medicine · 2018
    Review
  7. Article
  8. Article
  9. 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

7 authors at 1 institution in 1 country.

Thomas Grüning1 Department of Nuclear Medicine, Derriford Hospital, Plymouth, UK.
Rebecca E Mingo1 Department of Nuclear Medicine, Derriford Hospital, Plymouth, UK.
Matthew G Gosling2 Department of Clinical and Radiation Physics, Derriford Hospital, Plymouth, UK.
Sally L Farrell1 Department of Nuclear Medicine, Derriford Hospital, Plymouth, UK.
Brent E Drake1 Department of Nuclear Medicine, Derriford Hospital, Plymouth, UK.
Robert J Loader2 Department of Clinical and Radiation Physics, Derriford Hospital, Plymouth, UK.
Richard D Riordan3 Department of Imaging, Derriford Hospital, Plymouth, UK.
Derriford Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe report the imaging outcomes of all pregnant patients referred for suspected thromboembolism over a 43-month period.

methodsWe identified 168 patients who underwent ventilation/perfusion (VQ) single-photon emission CT (SPECT), CT pulmonary angiography (CTPA) or a Doppler ultrasound scan of the lower legs, as well as a control group of 89 non-pregnant age- and sex-matched patients who underwent VQ SPECT during the same period. Imaging outcomes were recorded, and radiation doses were calculated for individual patients.

resultsVQ SPECT and CTPA were equally likely to diagnose pulmonary embolism (PE) in about one patient out of every seven patients investigated. One in three CTPA scans was of suboptimal quality. A Doppler ultrasound examination of the legs will find deep venous thrombosis much less often, in about 1 patient out of every 15 patients investigated. The prevalence of PE in pregnant patients (as diagnosed by VQ SPECT) was similar to that in the non-pregnant, age- and sex-matched control group. The effective dose and the absorbed radiation dose to the maternal breast were lower with VQ SPECT. The foetal dose is comparable for both VQ SPECT and CTPA.

conclusionVQ SPECT and CTPA provide a similar diagnostic yield for diagnosing PE during pregnancy, but VQ SPECT does so with a lower radiation dose to the mother (effective dose and breast dose). ADVANCES IN KNOWLEDGE: Ours is the first report of the diagnostic performance of VQ SPECT, rather than planar VQ scans, in pregnancy in a routine clinical setting.

Indexed as

AdolescentAdultComputed Tomography AngiographyFemaleHumansMiddle AgedPhlebographyPregnancyPregnancy Complications, CardiovascularPrenatal DiagnosisPulmonary EmbolismTomography, Emission-Computed, Single-PhotonUltrasonography, DopplerVenous ThromboembolismVentilation-Perfusion RatioYoung Adult

Identifiers

PMID27055494
PMCPMC5258174
OpenAlexW2312196035

What OpenQuestion holds

Textmetadata
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.