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https://www.readbyqxmd.com/read/28221219/improving-the-evaluation-and-diagnosis-of-clinically-significant-prostate-cancer-in-2017
#1
Sigrid V Carlsson, Monique J Roobol
PURPOSE OF REVIEW: To provide an overview of the current state of the evidence and highlight recent advances in the evaluation and diagnosis of clinically significant prostate cancer, focusing on biomarkers, risk calculators and multiparametric MRI (mpMRI). RECENT FINDINGS: In 2017 there are numerous options to improve early detection as compared to a purely prostate-specific antigen (PSA)-based approach. All have strengths and drawbacks. In addition to repeating the PSA and performing clinical work-up (digital rectal examination and estimation of prostate volume), additional tests investigated in the initial biopsy setting are: %free PSA, Prostate Health Index, 4-kallikrein score, SelectMDx, and Michigan Prostate Score and in the repeat setting: %free PSA, Prostate Health Index, 4-kallikrein score, Prostate Cancer Antigen 3, and ConfirmMDx...
February 17, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28220802/the-prostate-cancer-prevention-trial-risk-calculator-2-0-performs-equally-for-standard-biopsy-and-mri-us-fusion-guided-biopsy
#2
M Maruf, M Fascelli, A K George, M M Siddiqui, M Kongnyuy, J M DiBianco, A Muthigi, S Valayil, A Sidana, T P Frye, A Kilchevsky, P L Choyke, B Turkbey, B J Wood, P A Pinto
BACKGROUND: The Prostate Cancer Prevention Trial Risk Calculator 2.0 (PCPTRC) is a widely used risk-based calculator used to assess a man's risk of prostate cancer (PCa) before biopsy. This risk calculator was created from data of a patient cohort undergoing a 6-core sextant biopsy, and subsequently validated in men undergoing 12-core systematic biopsy (SBx). The accuracy of the PCPTRC has not been studied in patients undergoing magnetic resonance imaging/ultrasound (MRI/US) fusion-guided biopsy (FBx)...
February 21, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28216939/prostatic-intraepithelial-neoplasia-like-ductal-prostatic-adenocarcinoma-a-case-suitable-for-active-surveillance
#3
Soroush Rais-Bahrami, Melissa R Dillard, Grace G Zhu, Jennifer B Gordetsky
In contrast to typical prostatic ductal adenocarcinoma, prostatic intraepithelial neoplasia (PIN)-like ductal adenocarcinoma is a rare variant of prostate cancer with low-grade clinical behavior. We report a case of a 66-year-old African-American male with an elevated serum prostate-specific antigen who underwent multiparametric prostate magnetic resonance imaging (MRI) and MRI/ultrasound fusion-guided biopsies. Pathology demonstrated low-volume Gleason score 3 + 3 = 6 (Grade Group 1), acinar adenocarcinoma involving one core and PIN-like ductal adenocarcinoma on a separate core...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28216327/combined-whole-body-and-multi-parametric-prostate-mri-as-a-single-step-approach-for-the-simultaneous-assessment-of-local-recurrence-and-metastatic-disease-after-radical-prostatectomy
#4
Nicola L Robertson, Evis Sala, Matthias Benz, Jonathan Landa, Peter Scardino, Howard I Scher, Hedvig Hricak, Hebert A Vargas
PURPOSE: To report our initial experience using "whole body and dedicated prostate (WB+P)" MRI as a single exam for the assessment of local recurrence and metastatic disease in patients with suspected recurrent prostate cancer (PCa) after radical prostatectomy (RP). MATERIALS AND METHODS: IRB-approved retrospective single-center study. 76 consecutive patients with clinically suspected recurrent PCa following RP underwent combined WB+P-MRI in a single session (10/2014-01/2016)...
February 16, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28196759/follow-up-mr-imaging-of-pi-rads-3-and-pi-rads-4-prostate-lesions
#5
Elke Hauth, Horst Jaeger, Horst Hohmuth, Meinrad Beer
OBJECTIVE: To determine the rate of malignancy after follow-up MR imaging of the prostate in PI-RADS 3 lesions without core biopsy and PI-RADS 4 lesions after negative initial core biopsy. MATERIALS AND METHODS: We performed follow-up MRI in 46/72 (64%) patients with PI-RADS 3 lesions and 26/72 (36%) patients with PI-RADS 4 lesions in baseline MRI. RESULTS: The rate of malignancy in PI-RADS 3 lesions was 4% (2/46) and in PI-RADS 4 lesions 69% (18/26)...
January 30, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28192761/a-comparison-of-bayesian-and-non-linear-regression-methods-for-robust-estimation-of-pharmacokinetics-in-dce-mri-and-how-it-affects-cancer-diagnosis
#6
Nikolaos Dikaios, David Atkinson, Chiara Tudisca, Pierpaolo Purpura, Martin Forster, Hashim Ahmed, Timothy Beale, Mark Emberton, Shonit Punwani
The aim of this work is to compare Bayesian Inference for nonlinear models with commonly used traditional non-linear regression (NR) algorithms for estimating tracer kinetics in Dynamic Contrast Enhanced Magnetic Resonance Imaging (DCE-MRI). The algorithms are compared in terms of accuracy, and reproducibility under different initialization settings. Further it is investigated how a more robust estimation of tracer kinetics affects cancer diagnosis. The derived tracer kinetics from the Bayesian algorithm were validated against traditional NR algorithms (i...
February 5, 2017: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/28177964/contemporary-gleason-grading-of-prostatic-carcinoma-an-update-with-discussion-on-practical-issues-to-implement-the-2014-international-society-of-urological-pathology-isup-consensus-conference-on-gleason-grading-of-prostatic-carcinoma
#7
Jonathan I Epstein, Mahul B Amin, Victor E Reuter, Peter A Humphrey
The primary proceedings of the 2014 International Society of Urological Pathology Grading Conference were published promptly in 2015 and dealt with: (1) definition of various grading patterns of usual acinar carcinoma, (2) grading of intraductal carcinoma; and (3) support for the previously proposed new Grade Groups. The current manuscript in addition to highlighting practical issues to implement the 2014 recommendations, provides an updated perspective based on numerous studies published after the 2014 meeting...
February 7, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28165653/novel-biparametric-mri-and-targeted-biopsy-improves-risk-stratification-in-men-with-a-clinical-suspicion-of-prostate-cancer-improd-trial
#8
Ivan Jambor, Peter J Boström, Pekka Taimen, Kari Syvänen, Esa Kähkönen, Markku Kallajoki, Ileana Montoya Perez, Tommi Kauko, Jaakko Matomäki, Otto Ettala, Harri Merisaari, Aida Kiviniemi, Peter B Dean, Hannu J Aronen
PURPOSE: To evaluate the role of a 3T biparametric magnetic resonance imaging (bpMRI), T2 -weighted imaging, and three separate diffusion-weighted imaging acquisitions combined with targeted biopsy (TB) for improving risk stratification of men with elevated prostate-specific antigen (PSA). MATERIALS AND METHODS: Between March 2013 and February 2015, 175 men with a clinical suspicion of prostate cancer (PCa) were offered bpMRI (NCT01864135) based on a suspicion of PCa (two repeated PSA measurements in the range 2...
February 6, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28164396/improved-multiparametric-mri-discrimination-between-low-risk-prostate-cancer-and-benign-tissues-in-a-small-cohort-of-5%C3%AE-reductase-inhibitor-treated-individuals-as-compared-with-an-untreated-cohort
#9
Olga Starobinets, John Kurhanewicz, Susan M Noworolski
The purpose of this study was to determine whether 5α-reductase inhibitors (5-ARIs) affect the discrimination between low-grade prostate cancer and benign tissues on multiparametric MRI (mpMRI). Twenty men with biopsy-proven Gleason 3 + 3 prostate cancer and 3 T mpMRI were studied. Ten patients (Tx) had been receiving 5-ARIs for at least a year at scan time. Ten untreated patients (Un) were matched to the treated cohort. For each subject two regions of interest representing cancerous and benign tissues were drawn within the peripheral zone of each prostate, MR measures evaluated, and cancer contrast versus benign (contrast = (MRTumor  - MRHealthy )/MRHealthy ) calculated...
February 6, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28163032/impact-of-gleason-subtype-on-prostate-cancer-detection-using-multiparametric-mri-correlation-with-final-histopathology
#10
Matthew Truong, Gary Hollenberg, Eric Weinberg, Edward M Messing, Hiroshi Miyamoto, Thomas P Frye
PURPOSE: Our purpose was to determine whether Gleason pattern 4 architecture impacts tumor visibility on multiparametric (mpMRI) and correlate with final histopathology. MATERIALS AND METHODS: A total of 83 tumor foci were identified within 22 radical prostatectomy specimens from patients with a prior negative biopsy who underwent MR/US fusion biopsy followed by radical prostatectomy from January 2015-July 2016. A genitourinary pathologist re-reviewed tumor foci for Gleason architectural subtype...
February 2, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28157066/multiparametric-mri-in-detection-and-staging-of-prostate-cancer
#11
Lars Boesen
BACKGROUND: Prostate cancer (PCa) is the second leading cause of cancer-related mortality and the most frequently diagnosed male malignant disease among men in the Nordic countries. The manifestation of PCa ranges from indolent to highly aggressive disease and due to this high variation in PCa progression, the diagnosis and subsequent treatment planning can be challenging. The current diagnostic approach with PSA testing and digital rectal examination followed by transrectal ultrasound biopsies (TRUS-bx) lack in both sensitivity and specificity in PCa detection and offers limited information about the aggressiveness and stage of the cancer...
February 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28145532/computational-imaging-reveals-shape-differences-between-normal-and-malignant-prostates-on-mri
#12
Mirabela Rusu, Andrei S Purysko, Sadhna Verma, Jonathan Kiechle, Jay Gollamudi, Soumya Ghose, Karin Herrmann, Vikas Gulani, Raj Paspulati, Lee Ponsky, Maret Böhm, Anne-Maree Haynes, Daniel Moses, Ron Shnier, Warick Delprado, James Thompson, Phillip Stricker, Anant Madabhushi
We seek to characterize differences in the shape of the prostate and the central gland (combined central and transitional zones) between men with biopsy confirmed prostate cancer and men who were identified as not having prostate cancer either on account of a negative biopsy or had pelvic imaging done for a non-prostate malignancy. T2w MRI from 70 men were acquired at three institutions. The cancer positive group (PCa+) comprised 35 biopsy positive (Bx+) subjects from three institutions (Gleason scores: 6-9, Stage: T1-T3)...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28143868/pre-biopsy-mp-mri-can-help-to-improve-the-predictive-performance-in-prostate-cancer-a-prospective-study-in-1478-consecutive-patients
#13
Rui Wang, Jing Wang, Ge Gao, Juan Hu, Yuanyuan Jiang, Zhenlong Zhao, Xiaodong Zhang, Yu-Dong Zhang, Xiaoying Wang
PURPOSE: To investigate whether pre-biopsy multi-parametric (mp) MRI can help to improve predictive performance in prostate cancer (PCa). EXPERIMENTAL DESIGN: Based on a support vector machine (SVM) analysis, we prospectively modeled clinical data (age, PSA, DRE, TRUS, PSA density and prostate volume) and mp-MRI findings (PI-RADS score and TNM stage) on 985 men to predict the risk of PCa. The new nomogram was validated on 493 patients treated at a same institution...
January 31, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28143433/developing-a-nomogram-based-on-multiparametric-magnetic-resonance-imaging-for-forecasting-high-grade-prostate-cancer-to-reduce-unnecessary-biopsies-within-the-prostate-specific-antigen-gray-zone
#14
Xiang-Ke Niu, Jun Li, Susant Kumar Das, Yan Xiong, Chao-Bing Yang, Tao Peng
BACKGROUND: Since 1980s the application of Prostate specific antigen (PSA) brought the revolution in prostate cancer diagnosis. However, it is important to underline that PSA is not the ideal screening tool due to its low specificity, which leads to the possible biopsy for the patient without High-grade prostate cancer (HGPCa). Therefore, the aim of this study was to establish a predictive nomogram for HGPCa in patients with PSA 4-10 ng/ml based on Prostate Imaging Reporting and Data System version 2 (PI-RADS v2), MRI-based prostate volume (PV), MRI-based PV-adjusted Prostate Specific Antigen Density (adjusted-PSAD) and other traditional classical parameters...
February 1, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28140460/factors-predicting-prostate-cancer-upgrading-on-magnetic-resonance-imaging-targeted-biopsy-in-an-active-surveillance-population
#15
Win Shun Lai, Jennifer B Gordetsky, John V Thomas, Jeffrey W Nix, Soroush Rais-Bahrami
BACKGROUND: The objective of this study was to create a nomogram model integrating clinical and multiparametric magnetic resonance imaging (MP-MRI)-based variables to predict prostate cancer upgrading in a population of active surveillance (AS) patients. METHODS: Prostate cancer patients on AS who underwent MP-MRI with magnetic resonance imaging (MRI)/ultrasound (US) fusion-guided biopsy were identified. Clinical and imaging variables, including the prostate-specific antigen density (PSAD), number of lesions, total lesion volume, total lesion density, Prostate Imaging Reporting and Data System magnetic resonance imaging suspicion score (MRI-SS), and duration between prereferral systematic and MRI/US fusion-guided biopsy sessions, were assessed...
January 31, 2017: Cancer
https://www.readbyqxmd.com/read/28139757/establishing-the-distribution-of-satellite-lesions-in-intermediate-and-high-risk-prostate-cancer-implications-for-focused-radiotherapy
#16
J V Hegde, D J Margolis, P-C Wang, R E Reiter, J Huang, M L Steinberg, M Kamrava
BACKGROUND: In focused radiotherapy for prostate cancer (PC), a full dose of radiation is delivered to the index lesion while reduced dose is delivered to the remaining prostate to reduce morbidity. As PC is commonly multifocal, we investigated whether baseline clinical characteristics or multiparametric magnetic resonance imaging (mpMRI) may be useful to predict the actual pathologic distribution of PC in men with intermediate- or high-risk PC, which may better inform how to deliver focused radiotherapy...
January 31, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28126331/diagnostic-accuracy-of-multi-parametric-mri-and-transrectal-ultrasound-guided-biopsy-in-prostate-cancer
#17
James E Thompson, Phillip D Stricker
No abstract text is available yet for this article.
January 23, 2017: Lancet
https://www.readbyqxmd.com/read/28124523/predictive-role-of-trimprob-associated-with-multiparametric-mri-in-the-diagnosis-of-prostate-cancer
#18
Gustavo Cardoso Guimaraes, Walter Henriques da Costa, Renato Almeida Rosa, Stênio Zequi, Ricardo Favaretto
OBJECTIVES: To evaluate the predictive value of TRIMprob test to detect prostate cancer (PCa) in patients referred to prostate biopsy (PB). MATERIAL AND METHODS: Patients with PSA <10ng/mL and rectal exam without findings suggestive of prostate cancer were selected for TRIMprob evaluation. Exam was performed by a single operator through transperineal approach. Patients admitted for the study were submitted to TRIMprob and multiparametric magnetic resonance (mpMRI) and posteriorly to PB...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28122909/prospective-study-of-crmp4-promoter-methylation-in-prostate-biopsies-as-a-predictor-for-lymph-node-metastases
#19
Xin Gao, Liao-Yuan Li, Jörg Rassler, Jun Pang, Ming-Kun Chen, Wei-Peng Liu, Zheng Chen, Shan-Cheng Ren, Fang-Jian Zhou, Ke-Ji Xie, Xing Zhou, Hui-Jun Qian, Xian-Zhong Bai, Jiu-Min Liu, Jiang-Gen Yang, Dan He, Chun-Kui Shao, Zu-Lan Su, Jing Wang, Jian-Guang Qiu, Li Ling
BACKGROUND: For patients with prostate cancer (PCa), the presence of pelvic lymph node metastasis (LNM) is a strong predictor of poor outcome. However, the approaches with promising sensitivity and specificity to detect LNM are still lacking. We investigated the value of collapsin response mediator protein 4 (CRMP4) promoter methylation in biopsies as a predictor for LNM. METHODS: CRMP4 promoter methylation at two previously identified CpG sites was determined in 80 case-matched biopsy samples (the training set) using bisulfite pyrosequencing...
January 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28117387/use-of-the-prostate-health-index-for-detection-of-prostate-cancer-results-from-a-large-academic-practice
#20
J J Tosoian, S C Druskin, D Andreas, P Mullane, M Chappidi, S Joo, K Ghabili, J Agostino, K J Macura, H B Carter, E M Schaeffer, A W Partin, L J Sokoll, A E Ross
BACKGROUND: The Prostate Health Index (phi) outperforms PSA and other PSA derivatives for the diagnosis of prostate cancer (PCa). The impact of phi testing in the real-world clinical setting has not been previously assessed. METHODS: In a single, large, academic center, phi was tested in 345 patients presenting for diagnostic evaluation for PCa. Findings on prostate biopsy (including Grade Group (GG), defined as GG1: Gleason score (GS) 6, GG2: GS 3+4=7, GG3: GS 4+3=7, GG4: GS 8 and GG5: GS 9-10), magnetic resonance imaging (MRI) and radical prostatectomy (RP) were prospectively recorded...
January 24, 2017: Prostate Cancer and Prostatic Diseases
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