Evidence map›Paper›PMID 33813317›Full record

ArticleClinical imaging2021

Pitfalls in chest CT findings of COVID-19 patients infected during hospitalisation.

Go Shirota, Yuko Sato, Daisuke Itoh, Wataru Gonoi, Takana Yamakawa Hayashi, Yoshihiro Sugita, Kohzoh Makita

Open access · bronzeAbstract read
In one paragraph

Article in Clinical imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 39% 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

3 citing papers in PubMed, 3 citations in OpenAlex.

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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 at 2 institutions in 1 country.

Go ShirotaDepartment of Radiology, Nerima Hikarigaoka Hospital, Japan Association for Development of Community Medicine, 2-11-1 Hikarigaoka, Nerima-ku, Tokyo 179-0072, Japan. Electronic address: shirota-hok@umin.ac.jp.
Yuko SatoDepartment of Radiology, Nerima Hikarigaoka Hospital, Japan Association for Development of Community Medicine, 2-11-1 Hikarigaoka, Nerima-ku, Tokyo 179-0072, Japan; Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
Daisuke ItohDepartment of Radiology, Nerima Hikarigaoka Hospital, Japan Association for Development of Community Medicine, 2-11-1 Hikarigaoka, Nerima-ku, Tokyo 179-0072, Japan.
Wataru GonoiDepartment of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
Takana Yamakawa HayashiDepartment of Radiology, Nerima Hikarigaoka Hospital, Japan Association for Development of Community Medicine, 2-11-1 Hikarigaoka, Nerima-ku, Tokyo 179-0072, Japan.
Yoshihiro SugitaNikko Citizen's Hospital, Japan Association for Development of Community Medicine, 1752-10 Kiyotakiarasawamachi, Nikko-shi, Tochigi 321-1441, Japan.
Kohzoh MakitaDepartment of Radiology, Nerima Hikarigaoka Hospital, Japan Association for Development of Community Medicine, 2-11-1 Hikarigaoka, Nerima-ku, Tokyo 179-0072, Japan.
Japan Association for Development of Community Medicine · JPThe University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study evaluated the differences in the appearance of COVID-19 pneumonia on chest computed tomography (CT) images of outpatient and cases that developed during hospitalisation.

methodChest CT images of 66 patients (median age, 76 years; range, 29-94 years) who underwent the severe acute respiratory syndrome coronavirus-2 reverse-transcription polymerase chain reaction (RT-PCR) test were included in this retrospective study. The chest CT appearance was categorised as "typical," "indeterminate," "atypical," or "negative" in accordance with the recommendations of the Radiological Society of North America for COVID-19 pneumonia and compared among the following four subgroups: PCR-positive outpatient (n = 14); PCR-positive hospitalised (n = 7); PCR-negative outpatient (n = 9); and PCR-negative hospitalised (n = 36).

findingsThe frequency of "typical" findings in the PCR-positive outpatient cases (13/14, 92.9%) was significantly higher than that of those in the PCR-positive hospitalised cases (2/7, 28.6%, P = 0.022). There was no significant difference between the frequency of the "typical" appearance in PCR-positive hospitalised cases and that of those in the PCR-negative hospitalised cases (1/36, 2.8%, P = 0.192).

conclusionsWhen COVID-19 patients acquire infections while hospitalised, their chest CT images are less likely to show typical findings than those of outpatient cases. Comprehensive and careful assessments of CT findings and consideration of the possibility of concomitant infections with other pathogens and clinical information, such as underlying diseases, background lung structure, and time course of the infection, are required for the management of such cases.

Indexed as

COVID-19AgedHospitalizationHumansLungRetrospective StudiesSARS-CoV-2Tomography, X-Ray ComputedComputed tomographyConcomitant infectionCOVID-19 pneumoniaHospital-acquired infectionNosocomial infectionSARS-CoV-2

Identifiers

PMID33813317
PMCPMC7997701
OpenAlexW3150305811

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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.