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Magnetic resonance imaging and morphometric histologic analysis of prostate tissue composition in predicting the clinical outcome of terazosin therapy in benign prostatic hyperplasia
Author(s) -
Isen Kenan,
Sinik Zafer,
Alkibay Turgut,
Sezer Cem,
Sözen Sinan,
Atilla Serhan,
Ataoglu Ömür,
Isik Sedat
Publication year - 2001
Publication title -
international journal of urology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 67
eISSN - 1442-2042
pISSN - 0919-8172
DOI - 10.1046/j.1442-2042.2001.00243.x
Subject(s) - medicine , prostate , magnetic resonance imaging , terazosin , urology , hyperplasia , prostate cancer , biopsy , prostate biopsy , stromal cell , radiology , pathology , cancer
Purpose:To determine whether magnetic resonance imaging (MRI) or quantitative color‐imaged morphometric analysis (MA) of the prostate gland are related to the clinical response to terazosin.Methods:Thirty‐six male patients with symptomatic benign prostatic hyperplasia (BPH) with a serum prostate‐specific antigen level of 4–10 ng/mL underwent MRI with body coil, transrectal prostate ultrasonography and biopsy prior to terazosin therapy. For MRI‐determined stromal and non‐stromal BPH, the ratio of the signal intensity of the inner gland to the obturator internus muscle was evaluated. Histologic sections were stained with hematoxylin and eosin. The MA of the specimens was performed by Samba 2000. Results of the two techniques were interpreted according to the terazosin therapy results.Results:The mean stromal percentage was 60.5 ± 18.0%. No statistically significant relationship was found between the clinical outcome of terazosin and the MRI findings. The MA results showed a significant relationship between the percentage of stroma and the percent change of the peak urinary flow rate, but not with the percent change of the international prostate symptom score after terazosin therapy ( P < 0.05).Conclusion:Magnetic resonance imaging alone is not sufficient in predicting the response to terazosin therapy. Morphometric analysis of BPH tissue composition can be used in predicting the clinical outcome of terazosin therapy but it is suitable only in patients for whom prostatic biopsy is necessary in order to rule out prostate cancer.