Computed Tomography (CT)

Computed tomography (CT) systems use a series of X-ray images to create an image volume dataset with slices that can be manipulated on any plane using advanced visualization software. The section includes computed tomography scanners, CT contrast agents, CT angiography (CTA and CCTA), CT perfusion, spectral CT (dual-source CT), and iterative reconstruction dose reduction software.

While the COVID-19 crisis is challenging, the pandemic is also giving researchers an opportunity to discover new approaches to saving lives. A study published in the JAMA Network Open on Thursday, March 25, 2021, recommends a new way for triaging mammogram patients during times of limited capacity, such as pandemic surges, when individuals may also experience anxiety about COVID-19.

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News | Breast Imaging | April 01, 2021
April 1, 2021 — While the COVID-19 crisis is challenging, the pandemic is also giving researchers an opportunity to...
Ultimately, because LYFS-CT may exclude minority patients who could benefit from LCS and underestimate the benefits of LCS, the authors of this AJR article suggested "augmenting LCS eligibility for minority patients using combinations of models"--specifically, the PLCOm2012 model in conjunction with LYFS-CT and USPSTF-2020. Image courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

Ultimately, because LYFS-CT may exclude minority patients who could benefit from LCS and underestimate the benefits of LCS, the authors of this AJR article suggested "augmenting LCS eligibility for minority patients using combinations of models"--specifically, the PLCOm2012 model in conjunction with LYFS-CT and USPSTF-2020. Image courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

News | Lung Imaging | March 29, 2021
March 29, 2021 — According to ARRS' American Journal of Roentgenology (AJR), updated United States Preventive Services...
Samples from the dataset used in this study. (a) X-ray with PA view of a patient with COVID-19; (b) X-ray with AP view of a patient with COVID-19; (c) X-ray of a healthy patient from Dataset A; (d) X-ray of a healthy patient from Dataset B.

Samples from the dataset used in this study. (a) X-ray with PA view of a patient with COVID-19; (b) X-ray with AP view of a patient with COVID-19; (c) X-ray of a healthy patient from Dataset A; (d) X-ray of a healthy patient from Dataset B. Images courtesy of IEEE/CAA JOURNAL OF AUTOMATICA SINICA

News | Coronavirus (COVID-19) | March 29, 2021
March 29, 2021 — X-rays, first used clinically in the late 1890s, could be a leading-edge diagnostic tool for COVID-19...
USPSTF-2020 lung cancer screening guidelines — based solely on age, pack-years, and quit-years — perpetuate eligibility disparities among racial and ethnic minorities, although incorporating certain risk prediction models may help reduce such inequalities

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News | Lung Imaging | March 26, 2021
March 26, 2021 — According to ARRS’ American Journal of Roentgenology (AJR), updated United States Preventive Services...
Thirona, an artificial intelligence (AI) software company specialising in medical image analysis, developed an AI algorithm that revolutionizes cystic fibrosis (CF) care. The new algorithm, coined PRAGMA-AI, allows for fast, automated analysis of CT scans of patients with CF to detect and quantify lung abnormalities related to CF
News | Artificial Intelligence | March 24, 2021
March 24, 2021 — Thirona, an artificial intelligence (AI) software company specialising in medical image analysis,...
RSIP Vision, a leading innovator in medical imaging through advanced artificial intelligence (AI) and computer vision solutions, announced an advanced joint segmentation tool for detailed, non-invasive planning of revision arthroplasty and other orthopedic procedures for patients with pre-existing metal implants.
News | Computed Tomography (CT) | March 24, 2021
March 24, 2021 — RSIP Vision, a leading innovator in medical imaging through advanced artificial intelligence (AI) and...
The Moscow Center for Diagnostics and Telemedicine presented clinical research findings during ECR 2021 highlighting that full integration of AI into radiology workflow during the pandemic increased radiologists' productivity
News | Artificial Intelligence | March 22, 2021
March 22, 2021 — Moscow Center for Diagnostics & Telemedicine and RADLogics shared the results of a large-scale...
Neurologica Mobile Stroke Unit includes new CT scanner and features that help EMTs improve patient care
News | Computed Tomography (CT) | March 17, 2021
March 17, 2021 — NeuroLogica Corp. announced the immediate availability of its SmartMSU with OmniTom Elite CT scanner. ...
The RapidAI footprint grew to over 60 countries, with its technology utilized in over 1,800 hospitals
News | Artificial Intelligence | March 16, 2021
March 16, 2021 — RapidAI, a leader in advanced cerebrovascular imaging, announced record-shattering 2020 milestones for...
 A comprehensive review by University of North Carolina researchers and colleagues of hundreds of publications, incorporating more than two dozen articles on prevention screening for lung cancer with low-dose spiral computed tomography (LDCT), shows there are both benefits and harms from screening

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News | Lung Imaging | March 15, 2021
March 15, 2021 — A comprehensive review by University of North Carolina researchers and colleagues of hundreds of...
Siemens Healthineers has announced the Food and Drug Administration (FDA) clearance of the Biograph Vision Quadra, a positron emission tomography/computed tomography (PET/CT) scanner designed for clinical use as well as translational research – or the application of scientific research to create therapies and procedures that improve health outcomes. In this manner, the Biograph Vision Quadra expands precision medicine.
News | PET-CT | March 08, 2021
March 8, 2021 — Siemens Healthineers has announced the Food and Drug Administration (FDA) clearance of the Biograph...
CT imaging radiation dose tracking software from Imalogix displayed at RSNA 2019.

CT imaging radiation dose tracking software from Imalogix displayed at RSNA 2019. Photo by Dave Fornell.

Feature | Radiation Dose Management | March 04, 2021 | By Dave Fornell
More than a decade ago, there was an alarming, rapid rise in ionizing radiation exposure in the U.S. population that...
icobrain cva allows the quantitative assessment of tissue perfusion by reporting the volume of core and perfusion lesion by quantifying Tmax abnormality and CBF abnormality together with the mismatch volume and ratio
News | Artificial Intelligence | February 23, 2021
February 23, 2021 — icometrix, world leader in imaging artificial intelligence (AI) solutions for people with...
Dr Sahar Saleem placing the mummy in the CT scanner

Dr. Sahar Saleem placing the mummy in the CT scanner. Image courtesy of Sahar Saleem

News | Computed Tomography (CT) | February 22, 2021
February 22, 2021 — Modern medical technology is helping scholars tell a more nuanced story about the fate of an...
Examples of the imaging performance of XPCI-CT (b,e) compared to conventional specimen radiography (a,d) and benchmarked against histopathology (c,f). he top row focuses on the similarity between the XPCI-CT slice in (b) and the histological slice in (c). Arrow 1 indicates margin involvement, arrow 2 a variation in density in the internal structure of the tumour mass, arrow 3 tumour-induced inflammation. All this is confirmed by the histological slice in (c), and hardly visible in the conventional image in

Examples of the imaging performance of XPCI-CT (b,e) compared to conventional specimen radiography (a,d) and benchmarked against histopathology (c,f). he top row focuses on the similarity between the XPCI-CT slice in (b) and the histological slice in (c). Arrow 1 indicates margin involvement, arrow 2 a variation in density in the internal structure of the tumour mass, arrow 3 tumour-induced inflammation. All this is confirmed by the histological slice in (c), and hardly visible in the conventional image in (a). The bottom row focuses on the detection of small calcifications, a key feature in DCIS. These are undetectable in (d), detected in (e), enhanced in the maximum intensity projection (MIP) image at the bottom of (f), and confirmed by histopathology in the top part of (f). The scale bar [shown in (b) and (e)] is the same for all images apart from (f), which has its own scale. Red arrows in (e) and (f) indicate the microcalcifications. Image courtesy of Professor Alessandro Olivo

News | Breast Imaging | February 22, 2021
February 22, 2021 — A new X-ray imaging scanner to help surgeons performing breast tumor removal surgery has been...
Unhealthy lifestyles, various diseases, stress, and aging can all contribute to an imbalance between the production of ROS and the body's ability to reduce and eliminate them. The resulting excessive levels of ROS cause "oxidative stress".

Unhealthy lifestyles, various diseases, stress, and aging can all contribute to an imbalance between the production of ROS and the body's ability to reduce and eliminate them. The resulting excessive levels of ROS cause "oxidative stress". Graphic courtesy of National Institutes for Quantum and Radiological Science and Technology

News | Magnetic Resonance Imaging (MRI) | February 10, 2021
February 10, 2021 — Oxygen is essential for human life, but within the body, certain biological environmental...
Videos | Coronavirus (COVID-19) | February 09, 2021
Margarita Revzin, M.D., MS, FSRU, FAIUM, associate professor of radiology and biomedical imaging, Yale University...
Materialise engineers coordinated the development of a surgical plan and created an on-screen 3D model based on CT-scans.

Materialise engineers coordinated the development of a surgical plan and created an on-screen 3D model based on CT-scans.

Feature | Medical 3-D Printing | February 03, 2021
Three-dimensional technologies, developed by Materialise, played a crucial role in the world’s first simultaneous...
A study led by UPMC Children's Hospital of Pittsburgh and the University of Pittsburgh School of Medicine shows that Black children are 18% less likely to get imaging tests as part of their emergency department visit compared to White children. Hispanic children are 13% less likely to have imaging done than Whites.

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News | Pediatric Imaging | February 03, 2021
February 3, 2021 — A study led by UPMC Children's Hospital of Pittsburgh and the University of Pittsburgh School of...
Kaplan–Meier curves for the high-risk individuals and the ones with low or medium risk according to AI-severity. The threshold to assign individuals into a high-risk group was the 2/3 quantile of the AI-severity score computed for patients of the KB development cohort. a Kaplan–Meier curves were obtained for the 150 leftover KB patients from the development cohort. b Kaplan–Meier curves were obtained for the 135 patients of the IGR validation cohort. p-values for the log-rank test were equal to 4.77e–07 (KB

Kaplan–Meier curves for the high-risk individuals and the ones with low or medium risk according to AI-severity. The threshold to assign individuals into a high-risk group was the 2/3 quantile of the AI-severity score computed for patients of the KB development cohort. a Kaplan–Meier curves were obtained for the 150 leftover KB patients from the development cohort. b Kaplan–Meier curves were obtained for the 135 patients of the IGR validation cohort. p-values for the log-rank test were equal to 4.77e–07 (KB) and 4.00e–12 (IGR). The two terciles used to determine threshold values for low-, medium-, and high-risk groups were equal to 0.187 and 0.375. Diamonds correspond to censoring of patients who were still hospitalized at the time when data ceased to be updated. The bands correspond to the sequence of the 95% confidence intervals of the survival probabilities for each day. KB Kremlin-Bicêtre hospital, IGR Institut Gustave Roussy hospital. Courtesy of Nature Communications.

News | Coronavirus (COVID-19) | February 01, 2021
February 1, 2021 — COVID-19 vaccine distribution has begun across the globe, while many countries are still struggling...