Evidence map›Paper›PMID 26872262›Full record

ArticlePloS one2016

High-Pitch CT Pulmonary Angiography in Third Generation Dual-Source CT: Image Quality in an Unselected Patient Population.

Bastian O Sabel, Kristijan Buric, Nora Karara, Kolja M Thierfelder, Julien Dinkel, Wieland H Sommer, Felix G Meinel

Abstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

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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.

Bastian O SabelInstitute for Clinical Radiology, Ludwig-Maximilians-University Hospital, Munich, Germany.
Kristijan BuricInstitute for Clinical Radiology, Ludwig-Maximilians-University Hospital, Munich, Germany.
Nora KararaInstitute for Clinical Radiology, Ludwig-Maximilians-University Hospital, Munich, Germany.
Kolja M ThierfelderInstitute for Clinical Radiology, Ludwig-Maximilians-University Hospital, Munich, Germany.
Julien DinkelInstitute for Clinical Radiology, Ludwig-Maximilians-University Hospital, Munich, Germany.
Wieland H SommerInstitute for Clinical Radiology, Ludwig-Maximilians-University Hospital, Munich, Germany.
Felix G MeinelInstitute for Clinical Radiology, Ludwig-Maximilians-University Hospital, Munich, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo investigate the feasibility of high-pitch CT pulmonary angiography (CTPA) in 3rd generation dual-source CT (DSCT) in unselected patients.

methodsForty-seven patients with suspected pulmonary embolism underwent high-pitch CTPA on a 3rd generation dual-source CT scanner. CT dose index (CTDIvol) and dose length product (DLP) were obtained. Objective image quality was analyzed by calculating signal-to-noise-ratio (SNR) and contrast-to-noise ratio (CNR). Subjective image quality on the central, lobar, segmental and subsegmental level was rated by two experienced radiologists.

resultsMedian CTDI was 8.1 mGy and median DLP was 274 mGy*cm. Median SNR was 32.9 in the central and 31.9 in the segmental pulmonary arteries. CNR was 29.2 in the central and 28.2 in the segmental pulmonary arteries. Median image quality was "excellent" in central and lobar arteries and "good" in subsegmental arteries according to both readers. Segmental arteries varied between "excellent" and "good". Image quality was non-diagnostic in one case (2%), beginning in the lobar arteries. Thirteen patients (28%) showed minor motion artifacts.

conclusionsIn third-generation dual-source CT, high-pitch CTPA is feasible for unselected patients. It yields excellent image quality with minimal motion artifacts. However, compared to standard-pitch cohorts, no distinct decrease in radiation dose was observed.

Indexed as

ArtifactsAdultAgedAged, 80 and overAngiographyFemaleHumansMaleMiddle AgedPulmonary ArteryPulmonary EmbolismRadiographic Image Interpretation, Computer-AssistedRetrospective StudiesSignal-To-Noise RatioTomography, X-Ray Computed

Identifiers

PMID26872262
PMCPMC4752234

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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.