scholarly journals Improved sensitivity and specificity for prostate cancer diagnosis based on the urine PCA3/PSA ratio acquired by sequence-specific RNA capture

2015 ◽  
Vol 34 (5) ◽  
pp. 2439-2444 ◽  
Author(s):  
KEWEN ZHENG ◽  
YALING DOU ◽  
LINFU HE ◽  
HANZHONG LI ◽  
ZHICAI ZHANG ◽  
...  
Author(s):  
M. Kuru ◽  
Z. Talat ◽  
M. S. Sağer ◽  
Ç. Demirdağ

The gold standard method for prostate cancer diagnosis is a transrectal ultrasonography-guided prostate biopsy. The detection rate of prostate cancer using the biopsy is approximately 25-30%. A non-invasive method Technetium-99m methoxy-isobutyl-isonitrile single-photon emission computed tomography (technetium-99m-MIBI-SPECT) could be used in prostate cancer detected. The study aimed to try to show that Tc99m-MIBI-SPECT, which is performed as a non-invasive method before biopsy in patients with prostate biopsy indication, may prevent unnecessary biopsy among these patients. Methods. Fifty-six patients who were admitted to our clinic for any lower urinary tract symptoms or routine control and who had a digital rectal examination or PSA value indication for prostate biopsy were included in this retrospective study. Technetium-99m-MIBI-SPECT our patients before the biopsy was performed, radiopharmaceutical uptake by the intensity and localization of the prostate was detected. Technetium-99m-MIBI-SPECT localization and intensity of involvement by prostate biopsy results were evaluated by nuclear medicine specialists. Results. The patients’ age and PSA level were 62.8 (31-78) years and 11.3 (2.5-100) ng/ml, respectively. Prostate cancer was detected in 27/56  (48.2%) patients. The suspicious diagnosis in technetium-99m-MIBI-SPECT images was observed in 36/56 (64.3%) patients, but prostate cancer was detected in 20 of them only. The sensitivity and specificity of technetium-99m-MIBI-SPECT were 74% and 45%, respectively. The positive and negative predictive values were 55% and  45% respectively. The diagnostic value of technetium-99m-MIBI-SPECT methods was considered as 58%. Conclusıon: The technetium-99m-MIBI-SPECT method in this study had low sensitivity and specificity for prostate cancer diagnosis. Therefore, we came to the conclusion that technetium-99m-MIBI-SPECT cannot be an alternative diagnostic method.


2007 ◽  
Vol 177 (4S) ◽  
pp. 156-156
Author(s):  
Andrea Salonia ◽  
Pierre I. Karakiewicz ◽  
Andrea Gallina ◽  
Alberto Briganti ◽  
Tommaso C. Camerata ◽  
...  

Author(s):  
Cosimo De Nunzio ◽  
Giorgia Tema ◽  
Riccardo Lombardo ◽  
Alberto Trucchi ◽  
Mariangela Bellangino ◽  
...  

2020 ◽  
Author(s):  
Dong Wook Shin ◽  
Jinsung Park ◽  
Kyoung Eun Yeob ◽  
Seok Jung Yoon ◽  
Soong-nang Jang ◽  
...  

2012 ◽  
Vol 109 ◽  
pp. 1-7 ◽  
Author(s):  
Michael Marberger ◽  
Jelle Barentsz ◽  
Mark Emberton ◽  
Jonas Hugosson ◽  
Stacy Loeb ◽  
...  

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jaegeun Lee ◽  
Seung Woo Yang ◽  
Long Jin ◽  
Chung Lyul Lee ◽  
Ji Yong Lee ◽  
...  

Abstract Background Serum prostate-specific antigen (PSA) is widely used in screening tests for prostate cancer. As the low specificity of PSA results in unnecessary and invasive prostate biopsies, we evaluated the clinical significance of various PSAs and PSA density (PSAD) related to peripheral zones in patients with gray zone PSA level (4–10 ng/mL). Methods A total of 1300 patients underwent transrectal ultrasonography-guided prostate biopsy from 2014 to 2019. Among them, 545 patients in the gray zone were divided into the prostate cancer diagnosis group and the non-prostate cancer diagnosis group, and PSA, relative extra transitional zone PSA (RETzPSA), estimated post holmium laser enucleation of the prostate PSA (EPHPSA), PSAD, peripheral zone PSA density (PZPSAD) and extra-transitional zone density (ETzD) were compared and analyzed using receiver-operating characteristics (ROC) analysis after 1:1 matching using propensity score. Results Area under the ROC curve values of PSA, EPHPSA, RETzPSA, PSA density, ETzD, and PZPSAD were 0.553 (95% CI: 0.495–0.610), 0.611 (95% CI: 0.554–0.666), 0.673 (95% CI: 0.617–0.725), 0.745 (95% CI: 0.693–0.793), 0.731 (95% CI: 0.677–0.780) and 0.677 (95% CI: 0.611–0.719), respectively. PSAD had 67.11% sensitivity, 71.71% specificity, and 70.34% positive predictive rate at 0.18 ng/mL/cc. ETzD had 69.08% sensitivity, 64.47% specificity, and 66.04% positive predictive rate at 0.04 ng/mL/cc. When the cut-off value of PSAD was increased to 0.18 ng/mL/cc, the best results were obtained with an odds ratio of 5.171 (95% CI: 3.171–8.432), followed by ETzD with 4.054 (95% CI: 2.513–6.540). Conclusions These results suggested that volume-adjusted parameters (ETzD and PSAD) might be more sensitive and accurate than various PSA in gray zone patients who required prostate biopsy to reduce unnecessary biopsy.


Sign in / Sign up

Export Citation Format

Share Document