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RF ablation 'biopsy' shows prognostic potential
The histopathology of residual tissue from radiofrequency ablation probes after ablation of hepatocellular carcinomas could predict local tumor progression independently from other tests, according to a study presented at the 2007 Society of Interventional Radiology meeting.
The histopathology of residual tissue from radiofrequency ablation probes after ablation of hepatocellular carcinomas could predict local tumor progression independently from other tests, according to a study presented at the 2007 Society of Interventional Radiology meeting.
Dr. Constantinos T. Sofocleous, an interventional radiologist at Memorial Sloan-Kettering Cancer Center in New York City, and colleagues prospectively classified 55 specimens harvested from RFA probes after liver treatment as coagulation necrosis and 13 as viable tumors. They found that these tissue samples could predict when RFA treatment would not be successful. Primary local tumor progression occurred in 92% of viable tumors versus 29% of those identified by post-RFA biopsy as necrotic. Investigators also found the long-term progression-free interval was about six times greater in the necrotic group. Both findings were statistically significant (p < 0.001).
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.
