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DWI breaks new ground in pelvic MR imaging, staging
Several studies released at the 2007 RSNA meeting suggest that diffusion-weighted MR imaging could one day become a routine exam for noninvasive characterization and staging of uterine tumors, replacing unnecessary catheter or surgical biopsies.
Several studies released at the 2007 RSNA meeting suggest that diffusion-weighted MR imaging could one day become a routine exam for noninvasive characterization and staging of uterine tumors, replacing unnecessary catheter or surgical biopsies.
Dr. Nagaraj S. Holalkere and colleagues at Massachusetts General Hospital retrospectively evaluated 65 women with 80 gynecologic lesions who underwent 1.5T DWI with a phased-array coil. The investigators found DWI accurate for lesion characterization. Dr. Sandro Sironi and colleagues at the University of Milan, Italy, enrolled 37 consecutive patients with early-stage endometrial carcinoma and compared DWI data against conventional MRI and biopsy. Sironi found the combination of conventional MR and DWI enhanced staging. A Korean team led by Dr. Kyoung Ah Kim at the Pochon CHA University in Sungnam evaluated DWI data from 108 patients with uterine cervical cancer. They found DWI useful for differentiating metastatic from nonmetastatic lymph nodes.
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.
