İnfravezikal obstrüksiyonlarda transrektal ultrasonografinin tanı değeri
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- Tez No: 31262
- Danışmanlar: Belirtilmemiş.
- Tez Türü: Tıpta Uzmanlık
- Konular: Üroloji, Urology
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 1993
- Dil: Türkçe
- Üniversite: Atatürk Üniversitesi
- Enstitü: Tıp Fakültesi
- Ana Bilim Dalı: Üroloji Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 52
Özet
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Özet (Çeviri)
Summary: Since Watanabe's first use in 1968, transrectal ultrasonography (TRUS) has become a frequently used imaging technique for the diagnosis of prostate diseases with the help of technological developments and increasing experiences in this subject. From November 1990 to April 1992, 90 patients who attented our clinic with history of prostatism, underwent transrectal scanning of the prostate gland and the obtained results were evaluated. TRUS was performed using a Toshiba Sal 77 B device with 5 M Hz intracorporeal lineer array probe. In the differantiation between prostate cancer and BPH, the results obtained by TRUS were 66.4 % for sensitivity, 86.2 % for specificity, 50.0 % for positive predictive value, 92.5 % for negative predictive value and 82.8 % for the accuracy rate. However, in the clinical diagnoses carried out with digital rectal examination (DRE) the results were 58.3 %, for sensitivity, 82.7 % for specificity, 41.0 for positive predictive value, 90.5 % for negative predictive value and 78.5 % for the accuracy rate. The obtained results showed that TRUS is superior to DRE and other diagnostic imaging techniques (CT, MRI) in the diagnosis of prostatic diseases and should be preferably applied due to its other advantages such as being inexpencive, noninvasive and practical (can be applied even in an office). In addition, it can best show the interior structure of the prostate gland. Ultrasonography by the transrectal approach can be used to: *Diagnose benign prostatic hyperplasia (BPH), early prostate cancer, prostatitis and prostate cysts *Guide transrectal or transperineal biopsies of suspect lesions *Stage prostate cancer *Implant radioactive iodine seeds for the treatment of prostatic cancer *Assist in the placement of prostatic coils and expandable stents *Evaluate seminal vesicle and ductus ejaculatorius pathology *Evaluate response to cancer therapy*Evaluate the dynamic functions of bladder neck and sphincteric urethral unit *Evaluate the approximate volume of the prostate 44
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