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Study questions value of CT screens for lung cancer
Screening CT leads to early lung cancer diagnosis but does not cut lung cancer death rates for people who receive annual screening, according to a large international study.
Screening CT leads to early lung cancer diagnosis but does not cut lung cancer death rates for people who receive annual screening, according to a large international study.
Dr. Peter Bach and colleagues at Memorial Sloan-Kettering Cancer Center in New York City evaluated 3246 asymptomatic men and women with a median age of 60 who had smoked or still smoked for an average of 39 years. Beginning in 1998, subjects underwent screening for lung cancer with multislice CT at the Mayo Clinic in Rochester, MN, the H. Lee Moffitt Cancer Center & Research Institute in Tampa, or Instituto Tumori in Milan, Italy. Subjects received an initial CT scan and then at least three subsequent annual exams.
CT screening found nearly three times as many lung cancers as predicted. However, early detection and treatment did not lead to a decrease in advanced lung cancers or a reduction in deaths from lung cancer (JAMA 2007; 297:953-961).
MRI-Based AI Radiomics Model Offers 'Robust' Prediction of Perineural Invasion in Prostate Cancer
July 26th 2024A model that combines MRI-based deep learning radiomics and clinical factors demonstrated an 84.8 percent ROC AUC and a 92.6 percent precision-recall AUC for predicting perineural invasion in prostate cancer cases.
Breast MRI Study Examines Common Factors with False Negatives and False Positives
July 24th 2024The absence of ipsilateral breast hypervascularity is three times more likely to be associated with false-negative findings on breast MRI and non-mass enhancement lesions have a 4.5-fold likelihood of being linked to false-positive results, according to new research.
Can Polyenergetic Reconstruction Help Resolve Streak Artifacts in Photon Counting CT?
July 22nd 2024New research looking at photon-counting computed tomography (PCCT) demonstrated significantly reduced variation and tracheal air density attenuation with polyenergetic reconstruction in contrast to monoenergetic reconstruction on chest CT.
