CT lung screening finds cancer in nonsmokers
January 12, 2017 -- High-risk nonsmokers have lung cancer at rates comparable to those of smokers in the National Lung Screening Trial, according to a multicenter lung cancer screening trial in Taiwan. If replicated, the results could affect the question of who needs CT lung cancer screening, particularly regarding individuals exposed to secondhand smoke.
Mammography use rises with ACA; colonoscopy, not so much
January 9, 2017 -- The U.S. Patient Protection and Affordable Care Act (ACA) has increased adherence to mammography screening by eliminating out-of-pocket costs, according to a new study published January 9 in Cancer. At the same time, reducing expenses did not increase colonoscopy rates among poorer patients.
NLST: Lung cancer growth rates differ by sex
January 3, 2017 -- Lung cancers in men and women grow at sufficiently different rates that radiologists should consider managing them differently depending on the patient's sex.
Vancouver lung cancer predictor works in NLST
December 22, 2016 -- A Canadian model for predicting lung cancer risk based on nodule and patient characteristics distinguished benign from malignant lung nodules in patients in the National Lung Screening Trial (NLST), according to a study presented at RSNA 2016. A second study in the same session, however, found that radiologists slightly outperformed the model.
Deep learning helps spot CT exams with critical findings
December 20, 2016 -- Deep-learning technology can be a useful tool for identifying cases that contain critical imaging findings, potentially expediting the interpretation of these exams and the communication of results, according to a presentation at the recent RSNA 2016 meeting in Chicago.
Canon completes acquisition of Toshiba Medical
December 19, 2016 -- Canon has completed its acquisition of Toshiba Medical Systems after the deal cleared regulatory approvals in all the countries where the companies operate.
CMS declines to revisit CT colonography coverage
December 15, 2016 -- In a stunning year-end setback for screening CT colonography, the U.S. Centers for Medicare and Medicaid Services (CMS) has turned down a request by advocates for CT colonography to reconsider its 2009 decision not to pay for the imaging-based colon cancer screening exam.
Machine learning improves FFR-CT for coronary ischemia
December 14, 2016 -- In results that could potentially shake up the heart imaging status quo, a machine learning algorithm slightly outperformed a more traditional algorithm in analyzing fractional flow reserve CT (FFR-CT) studies for detecting signs of ischemic coronary lesions, according to a presentation at the recent RSNA 2016 meeting in Chicago.
CT shows dinosaur tail, bird precursor
December 10, 2016 -- CT imaging has revealed what Chinese investigators are calling the first intact tail vertebrae from a feathered dinosaur that distinguishes it from a prehistoric bird, according to a new study in Current Biology.
Automated lymph-node segmentation takes on tough task
December 1, 2016 -- CHICAGO - A new automated lymph-node segmentation system applies both neural networks and structured optimization methods to the difficult task of separating lymph nodes from similar surrounding tissues, according to a presentation at the 2016 RSNA meeting.