For diagnosis of prostate cancer, MRI was performed in 91 patients prior to prostate biopsy, and prostate cancer was detected in 37 patients. The ability of MRI diagnosis compared with biopsy was accuracy 0.84, sensitivity 0.95, and specificity 0.76.In 26 patients (14 patients with prostate cancer) from whom MR images were obtained by diffusion weighted imaging, ADC value and PSA value showed a reverse correlation significantly.The ADC value was 0.97±0.23-3mm2/sec in the cancer area, 1.51±0.20-3mm2/sec in the normal peripheral zone, and 1.47±0.12-3mm2/sec in the normal central zone. The ADC value in the cancer area was smaller than that in the normal peripheral area or in the normal central zone significantly (p<0.001).The relation between ADC value and Gleason score did not show any correlation. However, when the Gleason score was under 6, ADC value was 1.11±0.20-3mm2/sec, and when it was over 7, ADC value was 0.81±0.19-3mm2/sec which showed a lower value than the ADC value with Gleason score under 6 significantly (p<0.05).MRI was effective for visualization of prostate cancer. We concluded that pre-biopsy MRI in prostate cancer would allow not only systemic-biopsy but also accurate targeting-biopsy, and it would improve the diagnosric ability of biopsy.
Cancer of Prostate ; biopsy characteristics ; Magnetic Resonance Imaging ; GLEASON GRADING FOR PROSTATIC CANCER ; lower case pea

Objective:To investigate the role of B cell adoptor protein with ankyrin repeats ( BANK ) in experimental autoimmune encephalomyelitis ( EAE) .Methods: C57BL/6 mice and BANK-deficient ( BANK-/-) mice were immunized with MOG peptide in CFA,and then observed the clinical symptoms and pathological severity .Results: The percentages of CD4+T cells,CD8+T cells and regulatory T cells in brain and spleen were analyzed by flow cytometry .BANK-/-mice showed significantly higher score at the peak and the plateau phase compared with wild-type mice(P<0.05).HE staining showed more widespread areas of inflammation and demyelination in BANK-/-mice when compared to wild-type mice on day 16.In addition,the frequency of CNS-infiltrating CD8+T cells was markedly higher in BANK-/-mice than in wild-type mice.In addition,the percentage of CD8+T cells from spleen in BANK-/-mice was also increased compared with wild-type mice (P<0.05).By contrast,the percentage of regulatory T cells and the ratio of CD 4/CD8 T cells from spleen in BANK-/-mice were significantly lower than in wild-type mice(P<0.05).Conclusion:Thus,BANK expression in B cells can inhibit the development of EAE .