Contamination inside CT gantry in the SARS-CoV-2 era

Abstract We investigated whether the internal gantry components of our computed tomography (CT) scanner contain severe acute respiratory syndrome 2 (SARS-CoV-2) ribonucleic acid (RNA), bacterial or fungal agents. From 1 to 27 March 2020, we performed 180 examinations of patients with confirmed SARS-...

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Main Authors: João Matos, Francesco Paparo, Marco Mori, Alessio Veneziano, Marina Sartini, Maria Luisa Cristina, Gian Andrea Rollandi
Format: Article
Language:English
Published: SpringerOpen 2020-10-01
Series:European Radiology Experimental
Subjects:
Online Access:http://link.springer.com/article/10.1186/s41747-020-00182-1
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author João Matos
Francesco Paparo
Marco Mori
Alessio Veneziano
Marina Sartini
Maria Luisa Cristina
Gian Andrea Rollandi
author_facet João Matos
Francesco Paparo
Marco Mori
Alessio Veneziano
Marina Sartini
Maria Luisa Cristina
Gian Andrea Rollandi
author_sort João Matos
collection DOAJ
description Abstract We investigated whether the internal gantry components of our computed tomography (CT) scanner contain severe acute respiratory syndrome 2 (SARS-CoV-2) ribonucleic acid (RNA), bacterial or fungal agents. From 1 to 27 March 2020, we performed 180 examinations of patients with confirmed SARS-CoV-2 infection using a dedicated CT scanner. On 27 March 2020, this CT gantry was opened and sampled in each of the following components: (a) gantry case; (b) inward airflow filter; (c) gantry motor; (d) x-ray tube; (e) outflow fan; (f) fan grid; (g) detectors; and (h) x-ray tube filter. To detect SARS-CoV-2 RNA, samples were analysed using reverse transcriptase-polymerase chain reaction (RT-PCR). To detect bacterial or fungal agents, samples have been collected using “replicate organism detection and counting” contact plates of 24 cm2, containing tryptic soy agar, and subsequently cultured. RT-PCR detected SARS-CoV-2 RNA in the inward airflow filter sample. RT-PCR of remaining gantry samples did not reveal the presence of SARS-CoV-2 RNA. Neither bacterial nor fungal agents grew in the agar-based growth medium after the incubation period. Our data showed that SARS-Cov-2 RNA can be found inside the CT gantry only in the inward airflow filter. All remaining CT gantry components were devoid of SARS-CoV-2 RNA.
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spelling doaj.art-06d3a191808d4c7eacc87fb5c8b928bf2022-12-22T00:22:09ZengSpringerOpenEuropean Radiology Experimental2509-92802020-10-01411410.1186/s41747-020-00182-1Contamination inside CT gantry in the SARS-CoV-2 eraJoão Matos0Francesco Paparo1Marco Mori2Alessio Veneziano3Marina Sartini4Maria Luisa Cristina5Gian Andrea Rollandi6DISSAL–Department of Health Sciences, University of GenoaS.C. Radiodiagnostica, EO Ospedali GallieraS.C. Laboratorio Analisi, EO Ospedali GallieraIndependent ResearcherS.S.D. U.O. a Direzione Universitaria Igiene Ospedaliera, EO Ospedali GallieraS.S.D. U.O. a Direzione Universitaria Igiene Ospedaliera, EO Ospedali GallieraS.C. Radiodiagnostica, EO Ospedali GallieraAbstract We investigated whether the internal gantry components of our computed tomography (CT) scanner contain severe acute respiratory syndrome 2 (SARS-CoV-2) ribonucleic acid (RNA), bacterial or fungal agents. From 1 to 27 March 2020, we performed 180 examinations of patients with confirmed SARS-CoV-2 infection using a dedicated CT scanner. On 27 March 2020, this CT gantry was opened and sampled in each of the following components: (a) gantry case; (b) inward airflow filter; (c) gantry motor; (d) x-ray tube; (e) outflow fan; (f) fan grid; (g) detectors; and (h) x-ray tube filter. To detect SARS-CoV-2 RNA, samples were analysed using reverse transcriptase-polymerase chain reaction (RT-PCR). To detect bacterial or fungal agents, samples have been collected using “replicate organism detection and counting” contact plates of 24 cm2, containing tryptic soy agar, and subsequently cultured. RT-PCR detected SARS-CoV-2 RNA in the inward airflow filter sample. RT-PCR of remaining gantry samples did not reveal the presence of SARS-CoV-2 RNA. Neither bacterial nor fungal agents grew in the agar-based growth medium after the incubation period. Our data showed that SARS-Cov-2 RNA can be found inside the CT gantry only in the inward airflow filter. All remaining CT gantry components were devoid of SARS-CoV-2 RNA.http://link.springer.com/article/10.1186/s41747-020-00182-1COVID-19Patient safetySafety managementSevere acute respiratory syndrome coronavirus 2Tomography scanners (x-ray computed)
spellingShingle João Matos
Francesco Paparo
Marco Mori
Alessio Veneziano
Marina Sartini
Maria Luisa Cristina
Gian Andrea Rollandi
Contamination inside CT gantry in the SARS-CoV-2 era
European Radiology Experimental
COVID-19
Patient safety
Safety management
Severe acute respiratory syndrome coronavirus 2
Tomography scanners (x-ray computed)
title Contamination inside CT gantry in the SARS-CoV-2 era
title_full Contamination inside CT gantry in the SARS-CoV-2 era
title_fullStr Contamination inside CT gantry in the SARS-CoV-2 era
title_full_unstemmed Contamination inside CT gantry in the SARS-CoV-2 era
title_short Contamination inside CT gantry in the SARS-CoV-2 era
title_sort contamination inside ct gantry in the sars cov 2 era
topic COVID-19
Patient safety
Safety management
Severe acute respiratory syndrome coronavirus 2
Tomography scanners (x-ray computed)
url http://link.springer.com/article/10.1186/s41747-020-00182-1
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