scholarly journals Customized Tool for the Validation of Optical Coherence Tomography in Differentiation of Prostate Cancer

2016 ◽  
Vol 16 (1) ◽  
pp. 57-65 ◽  
Author(s):  
B. G. Muller ◽  
A. Swaan ◽  
D. M. de Bruin ◽  
W. van den Bos ◽  
A. W. Schreurs ◽  
...  

Objective: To design and demonstrate a customized tool to generate histologic sections of the prostate that directly correlate with needle-based optical coherence tomography pullback measurements. Materials and Methods: A customized tool was created to hold the prostatectomy specimens during optical coherence tomography measurements and formalin fixation. Using the tool, the prostate could be sliced into slices of 4 mm thickness through the optical coherence tomography measurement trajectory. In this way, whole-mount pathology slides were produced in exactly the same location as the optical coherence tomography measurements were performed. Full 3-dimensional optical coherence tomography pullbacks were fused with the histopathology slides using the 3-dimensional imaging software AMIRA, and images were compared. Results: A radical prostatectomy was performed in a patient (age: 68 years, prostate-specific antigen: 6.0 ng/mL) with Gleason score 3 + 4 = 7 in 2/5 biopsy cores on the left side (15%) and Gleason score 3 + 4 = 7 in 1/5 biopsy cores on the right side (5%). Histopathology after radical prostatectomy showed an anterior located pT2cNx adenocarcinoma (Gleason score 3 + 4 = 7). Histopathological prostate slides were produced using the customized tool for optical coherence tomography measurements, fixation, and slicing of the prostate specimens. These slides correlated exactly with the optical coherence tomography images. Various structures, for example, Gleason 3 + 4 prostate cancer, stroma, healthy glands, and cystic atrophy with septae, could be identified both on optical coherence tomography and on the histopathological prostate slides. Conclusion: We successfully designed and applied a customized tool to process radical prostatectomy specimens to improve the coregistration of whole mount histology sections to fresh tissue optical coherence tomography pullback measurements. This technique will be crucial in validating the results of optical coherence tomography imaging studies with histology and can easily be applied in other solid tissues as well, for example, lung, kidney, breast, and liver. This will help improve the efficacy of optical coherence tomography in cancer detection and staging in solid organs.

2013 ◽  
Vol 7 (1-2) ◽  
pp. 93 ◽  
Author(s):  
Stavros Sfoungaristos ◽  
Petros Perimenis

Introduction: Preoperative Gleason score is crucial, in combination with other preoperative parameters, in selecting the appropriate treatment for patients with clinically localized prostate cancer. The aim of the present study is to determine the clinical and pathological variables that can predict differences in Gleason score between biopsy and radical prostatectomy.Methods: We retrospectively analyzed the medical records of 302 patients who had a radical prostatectomy between January 2005 and September 2010. The association between grade changes and preoperative Gleason score, age, prostate volume, prostate-specific antigen (PSA), PSA density, number of biopsy cores, presence of prostatitis and high-grade prostatic intraepithelial neoplasia was analyzed. We also conducted a secondary analysis of the factors that influence upgrading in patients with preoperative Gleason score ≤6 (group 1) and downgrading in patients with Gleason score ≤7 (group 2).Results: No difference in Gleason score was noted in 44.3% of patients, while a downgrade was noted in 13.7% and upgrade in 42.1%. About 2/3 of patients with a Gleason score of ≤6 upgraded after radical prostatectomy. PSA density (p = 0.008) and prostate volume (p = 0.032) were significantly correlated with upgrade. No significant predictors were found for patients with Gleason score ≤7 who downgraded postoperatively.Conclusion: Smaller prostate volume and higher values of PSA density are predictors for upgrade in patients with biopsy Gleason score ≤6 and this should be considered when deferred treatment modalities are planned.


2014 ◽  
Vol 13 (1) ◽  
pp. e1052
Author(s):  
B.G. Muller ◽  
W. Van Den Bos ◽  
D.M. De Bruin ◽  
M.J. Brandt ◽  
D.J. Faber ◽  
...  

2011 ◽  
Vol 18 (3) ◽  
pp. 113-119
Author(s):  
Daimantas MILONAS ◽  
Giedrė SMAILYTĖ ◽  
Darius TRUMBECKAS ◽  
Mindaugas JIEVALTAS

Background. The aim of the study was to present the oncologic outcomes and to determine the prognostic factors of overall (OS) and cancer-specific survival (CSS) as well as disease-progression-free survival (DPFS) after surgery for pT3b prostate cancer. Materials and methods. In 2002–2007, a pT3b stage after radical prostatectomy was detected in 56 patients. Patients were divided into groups according to the prostate-specific antigen (PSA) level (20 ng/ml), lymph nodes status (N0 vs. Nx vs. N1) and the Gleason score (6–7 vs. 8–10). The Kaplan–Meier analysis was used to calculate OS, CSS and DPFS. The Cox regression was used to identify the predictive factors of survival. Results. Five-year OS, CSS and DPFS rates were 75.1%, 79.6% and 79.3%, respectively. The survival was significantly different when comparing the Gleason 6–7 and 8–10 groups. The 5-year OS, CSS and DPFS were 91.2% vs. 48.6%, 97.1% vs. 51.1% and 93.8 vs. 51.1%, respectively. There was no difference in survival among the groups with a different PSA level. The OS and CSS but not DPFS were significantly different when comparing the N0 and N1 groups. The 5-year OS and CSS was 84.4% vs. 37.5% and 87.3% vs. 47.6%, respectively. The specimen Gleason score was a significant predictor of OS and CSS. The risk of death increased up to 4-fold when a Gleason score 8–10 was present at the final pathology. Conclusions. Radical prostatectomy may offer acceptable CSS, DPFS and OS rates in pT3b PCa. However, outcomes in patients with N1 and specimen Gleason ≥8 were significantly worse, suggesting the need of multimodality treatment in such cases. Keywords: prostate cancer, locally advanced, surgery, outcome


2020 ◽  
Vol 38 (6_suppl) ◽  
pp. 289-289
Author(s):  
Daniel Kim ◽  
Ming-Hui Chen ◽  
Hartwig Huland ◽  
Markus Graefen ◽  
Derya Tilki ◽  
...  

289 Background: We evaluated the impact of age > 65 years versus younger on the odds of finding adverse pathologic features (pT3/T4 and/or R1 and/or Gleason score 8, 9, 10) at radical prostatectomy (RP) among men with biopsy Gleason score 6 prostate cancer (PC). Methods: The study cohort comprised 3191 men with biopsy Gleason score 6 PC treated with a RP between February 28, 1992 and February 15, 2016 at the Martini-Klinik Prostate Cancer Center. Multivariable logistic regression was used to evaluate the impact of age > 65 years versus younger on the adjusted odds ratio (AOR) of finding adverse pathology at RP adjusting for pre-RP prostate specific antigen (PSA), clinical tumor category, year of diagnosis, percent positive biopsies (PPB), and PSA density (PSAd). Results: Men age > 65 years as compared to younger had significantly lower median PPB (16.67% vs 20.0%; p = 0.01) and PSAd (0.13 ng/mL vs 0.15 ng/mL; p < 0.0001). Yet, while both increasing PPB (AOR 1.018, 95% CI 1.013, 1.023; p- < 0.0001) and PSAd (AOR 4.28, 95% CI 1.66, 11.01; p = 0.003) were significantly associated with an increased odds of finding adverse pathology at RP, men age > 65 years versus younger had a higher odds of adverse pathology at RP (AOR 1.28, 95% CI 1.002, 1.62; p = 0.048). Conclusions: Despite a more favorable median PPB and PSAd, men with biopsy Gleason score 6 PC and who are age > 65 years compared to younger men are at higher risk for having adverse pathology at RP and may benefit from a multiparametric MRI and targeted biopsy before proceeding with active surveillance. If higher grade/stage disease is discovered and treatment indicated then this information could guide both the use and duration of supplemental androgen deprivation therapy in men considering radiation therapy.


2016 ◽  
Vol 103 (2) ◽  
pp. 204-208 ◽  
Author(s):  
Burak Arslan ◽  
Özkan Onuk ◽  
İsmet Hazar ◽  
Muammer Aydın ◽  
Nusret Can Çilesiz ◽  
...  

Purpose To assess the diagnostic capability of serum endocan level in association with clinicopathologic features and its impact on biochemical progression-free survival in patients with prostate cancer (PCa). Methods A total of 86 patients with localized prostate cancer were treated with open radical prostatectomy (RP). The control group included 80 patients who were referred to the urology outpatient clinic with normal rectal examination and prostate-specific antigen (PSA) levels. The patients’ characteristics, baseline PSA value, and serum endocan levels were recorded. The patients were followed up with the measurement of PSA concentration every 3 months during the first year, thereafter every 6 months until 5 years, then yearly after surgery. The primary endpoint of follow-up was the time of biochemical recurrence. Results The median serum endocan levels were 3.14 ng/mL in the RP group and 2.98 ng/mL in the control group (p = 0.122). A total of 86 patients who underwent RP for PCa were divided into 2 groups based on a cutoff serum endocan level of 1.8 ng/mL. The distribution of Gleason score and biochemical failure rate were significantly higher in patients with serum endocan ≥1.8 ng/mL (p = 0.031 and p = 0.047). The biochemical recurrence-free time for endocan ≥1.8 ng/mL and <1.8 ng/mL were 38 and 56 months, respectively (p = 0.041). Spearman correlation analysis showed a linear relationship between endocan expression and Gleason score (p = 0.025, p = 0.511). Multivariate analysis revealed that elevated serum endocan level (≥1.8 ng/mL) was a significant predictor of biochemical progression-free survival (hazard ratio 2.44; 95% confidence interval 1.78-3.23; p = 0.001). Conclusions The current study indicates that endocan has a close relationship with tumor recurrence in PCa.


2005 ◽  
Vol 3 (4) ◽  
pp. 0-0
Author(s):  
Daimantas Milonas ◽  
Dainius Burinskas ◽  
Stasys Auškalnis ◽  
Mindaugas Jievaltas

Daimantas Milonas, Dainius Burinskas, Stasys Auškalnis, Mindaugas JievaltasKauno medicinos universiteto Urologijos klinika,Eivenių g. 2, LT-50009 KaunasEl paštas: [email protected] Tikslas Nustatyti objektyvius veiksnius, kurie leistų prognozuoti ankstyvą biocheminį atkrytį po radikalios prostatektomijos. Ligoniai ir metodai Į tyrimą įtraukti 142 prostatos vėžiu sergantys ligoniai, kuriems buvo atliktos radikalios prostatektomijos. Ankstyvas biocheminis atkrytis konstatuotas, kai prostatos specifinio antigeno koncentracija, praėjus 3 mėn. po operacijos, buvo >0,2 ng/ml. Neoadjuvantinė terapija (hormonų ar spindulių) buvo pagrindinis atmetimo kriterijus. Vertinta prostatos specifinio antigeno koncentracija, vėžio diferenciacijos laipsnis iki ir po operacijos, vėžio stadija, prostatos chirurginio šalinimo išlaidos. Rezultatai Galutinei analizei panaudoti 94 ligonų duomenys. Vidutinis jų amžius buvo 66,6 metų, prostatos specifinis antigenas iki operacijos – 9,87 ng/ml, Gleason diferenciacijos laipsnis iki operacijos – 5,87, diferenciacijos laipsnis po operacijos – 6,38, teigiami rezekciniai kraštai rasti 36 (38%), ankstyvas biocheminis atkrytis – 13 (14%) pacientų. Atlikus logistinę regresijos analizę nustatyta, jog ankstyvą biocheminį atkrytį galima patikimai prognozuoti, kai Gleason pooperacinis vėžio diferenciacijos laipsnis didesnis nei 7 (p = 0,02, tikimybių santykis – 7,8) ir vėžio stadija T3b (p = 0,012, tikimybių santykis – 6,76). Išvados Remiantis ikioperaciniais objektyviais veiksniais negalima patikimai prognozuoti ankstyvo biocheminio atkryčio. Prostatos vėžio išplitimas į sėklines pūsleles (T3b stadija) ir Gleasono pooperacinis vėžio diferenciacijos laipsnis > 7 leidžia reikšmingai prognozuoti ankstyvą biocheminį atkryti, po radikalios prostatektomijos, tokiems ligoniams indikuojamas ankstyvas adjuvantinis gydymas, nelaukiant biocheminio atkryčio požymių. Reikšminiai žodžiai: prostatos vėžys, radikali prostatektomija, ankstyvas biocheminis atkrytis Can objective preoperative parameters predict early biochemical recurrence after radical prostatectomy? Daimantas Milonas, Dainius Burinskas, Stasys Auškalnis, Mindaugas JievaltasClinic of Urology, Kaunas University of Medicine,Eivenių str. 2, LT-50009 Kaunas, LithuaniaE-mail: [email protected] Objective To estimate objective parameters which can be useful for predicting early biochemical recurrence after radical prostatectomy due to prostate cancer. Patients and methods The study embraced 142 patients that underwent radical retropubic prostatectomy. Early biochemical failure was defined as a prostate-specific antigen level 3 months after radical prostatectomy > 0.2 ng/ml. Neoadjuvant treatment (hormonal therapy or radiation) was the mane exclusion criteria. Preoperative antigen concentration, Gleason score at the biopsy, patients’ age, postoperative Gleason score, stage and surgical margins were investigated as possible predictors of early biochemical recurrence. Results Final analysis was done using data on 94 patients. The mean patients’ age was 66.6 years and mean preoperative prostate specific antigen concentration 9.87 (range 0.44–98.4) ng/ml. The mean Gleason score preoperatively was 5.87 (range 2–8) and postoperatively 6.38 (range 4–9). Positive surgical margins were in 36 (38%) and early biochemical failure was detected in 13 (14%) cases. Logistic regression analysis shows that postoperative Gleason score >7 (p = 0.02, OR-7.8) and stage pT3b (p = 0.012, OR-6.76) are powerful parameters for predicting early biochemical recurrence. Conclusions Preoperative parameters cannot predict early biochemical recurrence. Postoperative parameters such as Gleason score >7 and stage pT3b are useful in the prediction of early biochemical recurrence. In such patients early adjuvant treatment is advisable. Keywords: prostate cancer, radical prostatectomy, early biochemical recurrence


2020 ◽  
Author(s):  
Vojtěch Novák ◽  
Štěpán Veselý ◽  
Hana Lukšanová ◽  
Richard Průša ◽  
Otakar Čapoun ◽  
...  

Abstract Background: We aimed to explore the utility of prostate specific antigen (PSA) isoform [-2]proPSA and its derivatives for prediction of pathological outcome after radical prostatectomy (RP).Methods: Preoperative blood samples were prospectively and consecutively analyzed from 472 patients treated with RP for clinically localized prostate cancer at four medical centers. Measured parameters were PSA, free PSA (fPSA), fPSA/PSA ratio, [-2]proPSA (p2PSA), p2PSA/fPSA ratio and Prostate Health Index (PHI) (p2PSA/fPSA)*√PSA]. Logistic regression models were fitted to determine the accuracy of markers for prediction of pathological Gleason score (GS) ≥7, Gleason score upgrading, extracapsular extension of the tumor (pT3) and the presence of positive surgical margin (PSM). Results: Of 472 patients undergoing RP, 339 (72%) were found to have pathologic GS ≥ 7, out of them 178 (53%) experienced an upgrade from their preoperative GS=6. The findings of pT3 and PSM were present in 132 (28%) and 133 (28%) cases, respectively. At univariable analysis of all the preoperative parameters, PHI was the most accurate predictor of pathological GS ≥7, GS upgrading, pT3 disease and the presence of PSM. Adding of PHI into the base multivariable model increased significantly the accuracy for prediction of pathological GS and GS upgrading by 4.4% (p=0.015) and 5.0% (p=0.025), respectively. Conclusion: We found that PHI provides the highest accuracy in predicting prostate cancer aggressiveness and expansion of the tumor detected at final pathology. The ability of PHI to predict the risk of Gleason score upgrade may help to identify potentially high-risk patients among men with biopsy proven insignificant prostate cancer.


Sign in / Sign up

Export Citation Format

Share Document