MR Imaging Articles


  • Comparison of PI-RADS version 2 and PI-RADS version 2.1 for the detection of transition zone prostate cancer.

    To compare the diagnostic performance of PI-RADS v2 and v2.1 for detecting transition zone prostate cancer (TZPC) on multiparametric prostate MRI (mpMRI).

    Fifty-eight patients with elevated PSA levels underwent mpMRI at 3 T including T2-weighted imaging (T2WI) and diffusion-weighted imaging (DWI), and subsequent MRI-transrectal ultrasonography fusion-guided prostate-targeted biopsy (MRGB).

    Published November 6, 2019
  • Follow-up MR imaging of PI-RADS 3 and PI-RADS 4 prostate lesions.

    To determine the rate of malignancy after follow-up MR imaging of the prostate in PI-RADS 3 lesions without core biopsy and PI-RADS 4 lesions after negative initial core biopsy.

    We performed follow-up MRI in 46/72 (64%) patients with PI-RADS 3 lesions and 26/72 (36%) patients with PI-RADS 4 lesions in baseline MRI.

    Published February 24, 2017
  • Imaging and Screening of Kidney Cancer.

    Renal cell carcinoma (RCC) exhibits a diverse and heterogeneous disease spectrum, but insight into its molecular biology has provided an improved understanding of potential risk factors, oncologic behavior, and imaging features.

    Published October 19, 2017
  • Imaging of Solid Renal Masses.

    The increase in serendipitous detection of solid renal masses on imaging has not resulted in a reduction in mortality from renal cell carcinoma. Consequently, efforts for improved lesion characterization have been pursued and incorporated into management algorithms for distinguishing clinically significant tumors from those with favorable histology or benign conditions.

    Published August 1, 2018
  • Magnetic Resonance-Guided Prostate Biopsy.

    The optimal strategy for prostate cancer diagnosis is to avoid overdiagnosis, defined as diagnosis of clinically insignificant disease, and undersampling of the gland, which leads to missing clinically significant disease.

    Published November 6, 2015
  • Magnetic Resonance-Guided Thermal Therapy for Localized and Recurrent Prostate Cancer.

    The advent of focal therapies theoretically offers new treatment options for patients with localized prostate cancer. The goal of prostate cancer treatment is effective long-term cure with minimal impact on health-related quality of life.

    Published November 9, 2015
  • MR Imaging of the Urinary Bladder: Added Value of PET-MR Imaging.

    MR imaging has been increasingly getting attention for the evaluation of bladder cancer. Recent studies have been promising for the staging performance of MR imaging in the bladder cancer, although its specific role has not been established yet.

    Published November 27, 2018
  • Prostate MR Imaging: An Update.

    Improvements in prostate MR imaging techniques and the introduction of MR imaging-targeted biopsies have had central roles in prostate cancer (PCa) management. The role of MR imaging has progressed from largely staging patients with biopsy-proven PCa to detecting, characterizing, and guiding the biopsy of suspected PCa.

    Published February 4, 2017
  • Radiomics in Kidney Cancer: MR Imaging.

    Renal tumors encompass a heterogeneous disease spectrum, which confounds patient management and treatment. Percutaneous biopsy is limited by an inability to sample every part of the tumor. Radiomics may provide detail beyond what can be achieved from human interpretation.

    Published January 11, 2019
  • Role of Multiparametric MR Imaging in Malignancies of the Urogenital Tract.

    Multiparametric MR imaging (mpMRI) combine different sequences that, properly tailored, can provide qualitative and quantitative information about the tumor microenvironment beyond traditional tumor size measures and/or morphologic assessments.

    Published December 1, 2015
  • Update on Clinical Magnetic Resonance-Guided Focused Ultrasound Applications.

    In this review, several clinical applications of magnetic resonance (MR)-guided focused ultrasound (FUS) are updated. MR-guided FUS is used clinically for thermal ablation of uterine fibroids and bone metastases.

    Published November 6, 2015