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The correlation between biological activity and diffusion-weighted MR imaging and ADC value in cases with prostate cancer

Bedriye Koyuncu Sokmen, Dogukan Sokmen, Nese Ucar, Huseyin Ozkurt, Abdulmuttalip Simsek
  • Bedriye Koyuncu Sokmen
    Department of Radiology, Sisli Florence Nightingale Hospital Istanbul, Turkey | bedriyekoyuncu@yahoo.com
  • Dogukan Sokmen
    Department of Urology, Hospital Derindere, Istanbul, Turkey
  • Nese Ucar
    Department of Radiology, Gaziosmanpasa Taksim Training and Research Hospital, Istanbul, Turkey
  • Huseyin Ozkurt
    Department of Radiology, Istanbul Hamidiye Sisli Etfal Training and Research Hospital, Istanbul, Turkey
  • Abdulmuttalip Simsek
    Department of Urology, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey

Abstract

Purpose: Firstly, we aimed to investigate the correlation among dynamic contrasted magnetic resonance (MR) images, diffusion-weighted MR images, and apparent diffusion coefficent (ADC) values in patients with prostate cancer. Secondly, we aimed to investigate the roles of these variables on clinical risk classification and the biological behavior of the prostate cancer. Methods: A total of sixty with prostatic adenocarcinoma patients diagnosed between January 2011 and May 2013 were retrospectively included in the study. Risk classification of patients were evaluated as low-risk (Group 1) (n = 20) (Stage T1c-T2a, PSA < 10 ng/ml, Gleason Score < 7), moderate-risk (Group 2) (n = 18) (Stage T1b-T2c, PSA = 10-20 ng/ml, Gleason Score = 7) and high-risk (Group 3) (n = 22) (Stage > T3a, PSA > 20 ng/ml, Gleason Score > 7). Diffusion-weighted MR images, dynamic contrasted MR images, and ADC values of the prostates were correlated. Results: ADC values of the cases in Group 3 were lower than those of the other groups (p < 0.001). ADC values of the areas without malignancy did not differ significantly between groups (p > 0.05). Biological activity of the tumor tissue was determined by GS, while a negative correlation was observed between GSs and ADC values of the patients, (p < 0.001). Conclusion: In tumors with higher Gleason scores, lower ADC values were obtained. These measured values can play a role in the noninvasive determination of the cellularity of the tumoral mass.

Keywords

Prostate cancer; Dynamic contrasted MRI; Diffusion-weighted MRI; Apparent diffusion coefficient value

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Submitted: 2017-07-17 07:16:00
Published: 2017-12-31 00:00:00
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