18/Jul/2022
Effect of lateral decubitus acquisition in accuracy and lung severity estimation of chest computed tomography in children with suspected COVID-19
einstein (São Paulo). 18/Jul/2022;20:eAO0061.
View Article18/Jul/2022
Effect of lateral decubitus acquisition in accuracy and lung severity estimation of chest computed tomography in children with suspected COVID-19
DOI: 10.31744/einstein_journal/2022AO0061
ABSTRACT Objective To compare inter-rater reliability, diagnostic accuracy, and extension of pulmonary involvement in children with suspected COVID-19 submitted to supine or supine and lateral decubitus computed tomography imaging. Methods Retrospective study carried out between March 2020 and March 2021 with patients submitted to reverse transcription-polymerase chain reaction testing and chest computed tomography. Patients were divided into two groups: supine or supine and lateral decubitus imaging. Standardized reporting systems of computed tomographic findings in COVID-19 and chest computed tomography score […]
Keywords: Child; Coronavirus infections; COVID-19; Multidetector computed tomography; Reverse transcriptase polymerase chain reaction; Tomography, x-ray computed
20/May/2022
Prognostic factors of worse outcome for hospitalized COVID-19 patients, with emphasis on chest computed tomography data: a retrospective study
einstein (São Paulo). 20/May/2022;20:eAO6953.
View Article20/May/2022
Prognostic factors of worse outcome for hospitalized COVID-19 patients, with emphasis on chest computed tomography data: a retrospective study
DOI: 10.31744/einstein_journal/2022AO6953
ABSTRACT Objective: To evaluate anthropometric and clinical data, muscle mass, subcutaneous fat, spine bone mineral density, extent of acute pulmonary disease related to COVID-19, quantification of pulmonary emphysema, coronary calcium, and hepatic steatosis using chest computed tomography of hospitalized patients with confirmed diagnosis of COVID-19 pneumonia and verify its association with disease severity. Methods: A total of 123 adults hospitalized due to COVID-19 pneumonia were enrolled in the present study, which evaluated the anthropometric, clinical and chest computed tomography data […]
Keywords: Coronavirus infections; COVID-19; Multidetector computed tomography; Obesity; Pneumonia; Prognosis; Tomography; X-ray computed
06/Nov/2020
A comparative study of ultrasound and cross-sectional imaging for detection of small renal masses: anatomic factors and radiologist’s experience
DOI: 10.31744/einstein_journal/2020AO5576
ABSTRACT Objective: To evaluate anatomic factors and radiologist’s experience in the detection of solid renal masses on ultrasonography. Methods: We searched for solid renal masses diagnosed on cross-sectional imaging from 2007 to 2017 that also had previous ultrasonography from the past 6 months. The following features were evaluated: nodule size, laterality, location and growth pattern, patient body mass index and radiologist’s experience in ultrasound. In surgically resected cases, pathologic reports were evaluated. Unpaired t test and χ2 test were used […]
Keywords: Diagnostic imaging; kidney neoplasms/diagnostic, imaging; Multidetector computed tomography; Ultrasonography
18/Jun/2020
COVID-19 findings identified in chest computed tomography: a pictorial essay
einstein (São Paulo). 18/Jun/2020;18:eRW5741.
View Article18/Jun/2020
COVID-19 findings identified in chest computed tomography: a pictorial essay
DOI: 10.31744/einstein_journal/2020RW5741
ABSTRACT The disease caused by the new coronavirus, or COVID-19, has been recently described and became a health issue worldwide. Its diagnosis of certainty is given by polymerase chain reaction. High-resolution computed tomography, however, is useful in the current context of pandemic, especially for the most severe cases, in assessing disease extent, possible differential diagnoses and searching complications. In patients with suspected clinical symptoms and typical imaging findings, in which there is still no laboratory test result, or polymerase chain […]
Keywords: Coronavirus infections; Multidetector computed tomography
15/Oct/2013
Coronary computed tomography angiography with 320-row detector and using the AIDR-3D: initial experience
einstein (São Paulo). 15/Oct/2013;11(3):400-4.
View Article15/Oct/2013
Coronary computed tomography angiography with 320-row detector and using the AIDR-3D: initial experience
DOI: 10.1590/S1679-45082013000300025
Coronary computed tomography angiography (coronary CTA) is a powerful non-invasive imaging method to evaluate coronary artery disease. Nowadays, coronary CTA estimated effective radiation dose can be dramatically reduced using state-of-the-art scanners, such as 320-row detector CT (320-CT), without changing coronary CTA diagnostic accuracy. To optimize and further reduce the radiation dose, new iterative reconstruction algorithms were released recently by several CT manufacturers, and now they are used routinely in coronary CTA. This paper presents our first experience using coronary CTA […]
Keywords: Cardiac imaging techniques; Cardiac-gated imaging techniques; Coronary angiography; Coronary artery disease; Diagnostic imaging; Exposure control to radiation; Image processing, computed-assisted; Multidetector computed tomography; Myocardial ischemia; Radiation, ionizing