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T1-weighted MRI identifies signs of multiple sclerosis
Long-standing suspicions about noncontrast T1-weighted MRI's usefulness as a biomarker for multiple sclerosis have been confirmed in a study showing that hyperintense plaques revealed with the technique are associated with brain atrophy, disability, and an advancing course for the disease.
Long-standing suspicions about noncontrast T1-weighted MRI's usefulness as a biomarker for multiple sclerosis have been confirmed in a study showing that hyperintense plaques revealed with the technique are associated with brain atrophy, disability, and an advancing course for the disease.
Dr. Vallabh Janardhan and colleagues at Brigham and Women's Hospital in Boston and State University of New York at Buffalo retrospectively reviewed data from 145 MS patients who underwent unenhanced T1-weighted MRI from July 1995 to June 1999. Ninety-two patients had relapsing-remitting MS, and 49 were diagnosed with secondary-progressive MS. The disease type was unknown in four cases. The investigators found a significant correlation between hyperintense lesions, detected with noncontrast T1-weighted MRI, and secondary-progressive MS (Radiology 2007;244:823-831).
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.
