Case Presentation: A 14 month old female paediatric patient underwent a non-contrast CT scan of their chest post drain tube insertion to the right lung under CT guidance. Multi-planar reconstruction images and 3D rendered images were produced using an iterative reconstruction (IR) technique. The ...
To determine the diagnostic capability of low-dose CT (50mAs) in comparison to standard-dose CT (150mAs). Fifty-nine consecutive patients underwent two non-contrast chest CT scans with different current-time products (50 and 150mAs at 120kVp) on a 64-detector row CT scanner. Three board ...
The purpose of this study was to evaluate the impact of ultralow radiation dose single-energy computed tomographic (CT) acquisitions with Sn prefiltration and third-generation iterative reconstruction on density-based quantitative measures of growing interest in phenotyping pulmonary disease. The effects ...
Objective To assess the program of low dose chest CT screening with iterative reconstruction technique(iDose4).Methods Totally 120 subjects who underwent chest CT screening were divided into 3 groups according to body mass index(BMI): Group A(BMI≤22),group B(22BMI26) and group C(BMI≥26)...
According to the corresponding principles or guidelines, the radiation dose received by patients should be in the safe range during nuclear medicine diagnosis and treatment. Radiation can cause deterministic or random effects on the human body. However, dose optimization helps to reduce the radiation ...
Thin-section, high-resolution (1.0/1.5 mm thick slices), low-dose chest CT scans were performed in 55 infants and children. The studies were carried out with 1-and 2-s scan (data acquisition) times using a high-resolution (bone) algorithm. Although there was some motion artifact, the stu...
“We could clearly detect the increase of DNA damage and chromosome aberrations after standard chest CT,” says senior author Satoshi Tashiro from Hiroshima University. “In contrast, even using these sensitive analyses, we could not detect the biological effects of low-dose CT scans. This suggests...
Low-dose computed tomography (LDCT) of the chest is a recommended diagnostic tool in early stage of COVID-19 pneumonia. High age, several comorbidities as well as poor physical fitness can negatively influence the outcome within COVID-19 infection. We investigated whether the ratio of fat to ...
Baseline findings of a randomized feasibility trial of lung cancer screening with spiral CT scan vs chest radiograph: the Lung Screening Study of the National Cancer Institute. Chest. 2004;126(1):114-121. doi:10.1378/chest.126.1.114 PubMedGoogle ScholarCrossref 20. Doroudi M, ...
A total of six helical scan series were taken at different dose levels. The applied volumetric CT dose index (CTDIvol) values were 6.04 mGy (routine clinical chest protocol University Hospital Antwerp), 3.03, 1.54, 0.77, 0.41 and 0.20 mGy. In all cases tube current modulation (TCM) was ...