CHEST CT USAGE IN COVID-19 PNEUMONIA: MULTICENTER STUDY ON RADIATION DOSES AND DIAGNOSTIC QUALITY IN BRAZIL.
Radiat Prot Dosimetry
; 197(3-4): 135-145, 2021 Dec 30.
Статья
в английский
| MEDLINE | ID: covidwho-1556863
ABSTRACT
We assessed variations in chest CT usage, radiation dose and image quality in COVID-19 pneumonia. Our study included all chest CT exams performed in 533 patients from 6 healthcare sites from Brazil. We recorded patients' age, gender and body weight and the information number of CT exams per patient, scan parameters and radiation doses (volume CT dose index-CTDIvol and dose length product-DLP). Six radiologists assessed all chest CT exams for the type of pulmonary findings and classified CT appearance of COVID-19 pneumonia as typical, indeterminate, atypical or negative. In addition, each CT was assessed for diagnostic quality (optimal or suboptimal) and presence of artefacts. Artefacts were frequent (367/841), often related to respiratory motion (344/367 chest CT exams with artefacts) and resulted in suboptimal evaluation in mid-to-lower lungs (176/344) or the entire lung (31/344). There were substantial differences in CT usage, patient weight, CTDIvol and DLP across the participating sites.
Полный текст:
Имеется в наличии
Коллекция:
Международные базы данных
база данных:
MEDLINE
Основная тема:
COVID-19
Тип исследования:
Экспериментальные исследования
Пределы темы:
Люди
Страна как тема:
Южная Америка
/
Бразилия
Язык:
английский
Журнал:
Radiat Prot Dosimetry
Год:
2021
Тип:
Статья
Документы, близкие по теме
MEDLINE
...
LILACS
LIS