Editorial for “Evaluating the Diagnostic Performance of MR Cytometry Imaging in Differentiating Benign and Malignant Breast Tumors”
Abstract
The authors evaluate in this study [1] the diagnostic performance of MR cytometry imaging in differentiating benign and malignant breast tumors. Using pulsed gradient spin-echo (PGSE) and oscillating gradient spin-echo (OGSE) diffusion-weighted imaging (DWI), the study compares three MR cytometry meth-ods: IMPULSED, JOINT, and EXCHANGE—outcomes from different physics modeling of diffusion mechanisms. Results from 115 patients show that incorporating transcytolemmal water exchange (JOINT and EXCHANGE) improves classification accuracy over traditional apparent diffusion coefficient (ADC) measurements. EXCHANGE achieved the highest AUC, demonstrating its potential as a noncontrast alternative for breast cancer diagnosis. The study highlights the clinical value of MR cytometry while acknowledging challenges in biophysical modeling and validation. MR diffusion cytometry
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