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Mri and prostate biopsy

Erik Rud, Lien Diep, Eduard Baco
OBJECTIVE: The aim of this study was to evaluate three indirect MRI signs for predicting extraprostatic disease in patients referred to radical prostatectomy: index tumor volume (MTV), apparent diffusion coefficient (ADC) and tumor contact length (TCL). MATERIALS AND METHODS: This prospective study included 183 patients with biopsy proven prostate cancer. In all patients the MTV (ml), ADC (× 10-5 mm2/s) and TCL (mm) of the index tumor were registered at the preoperative MRI...
January 18, 2018: World Journal of Urology
Frank Fischbach, Lukas Wien, Sascha Krueger, Bernhard Schnackenburg, Daniel Baumunk, Björn Friebe, Martin Schostak, Jens Ricke, Katharina Fischbach
OBJECTIVE: The aim of our study was (1) to establish an in-bore targeted biopsy of suspicious prostate lesions, avoiding bowel penetration using a transgluteal approach and (2) to assess operator setup, patient comfort and safety aspects in the clinical setting for freehand real-time MR-guidance established for percutaneous procedures in an open MR-scanner. MATERIAL AND METHODS: 30 patients with suspect prostate lesions were biopsied in a cylindrical 3T-MRI system using a transgluteal approach in freehand technique...
January 17, 2018: European Radiology
Angelika Borkowetz, Theresa Renner, Ivan Platzek, Marieta Toma, Roman Herout, Martin Baunacke, Christer Groeben, Johannes Huber, Michael Laniado, Gustavo B Baretton, Michael Froehner, Stefan Zastrow, Manfred P Wirth
INTRODUCTION: Targeted biopsy of tumour-suspicious lesions detected in multiparametric magnetic resonance imaging (mpMRI) plays an increasing role in the active surveillance (AS) of patients with low-risk prostate cancer (PCa). The aim of this study was to compare MRI/ultrasound-fusion biopsy (fusPbx) with systematic biopsy (sysPbx) in patients undergoing biopsy for AS. METHODS: Patients undergoing mpMRI and transperineal fusPbx combined with transrectal sysPbx (comPbx) as surveillance biopsy were investigated...
January 16, 2018: Urologia Internationalis
M Sarradin, C Lepiney, O Celhay, P O Delpech, T Charles, P Pillot, S Bernardeau, J P Tasu, J Irani
A minimum delay of 4 to 6 weeks between biopsy and multiparametric prostatic MRI (mpMRI) is admitted due to post-biopsy hemorrhage that can impact MRI reading without strong scientific evidence. The objective of the study was to evaluate the best period between prostate biopsy and 3Tesla mpMRI and searching for predictive factors of intraprostatic blood. A prostate biopsy followed by a 4-week prostate MRI (MRIp M1) was performed. In case of hemorrhage, MRI was rescheduled at 8 and 12 weeks (M2/M3). We analyzed the persistant bleeding to identify risk factors: anticoagulant/antiaggregant, post-biopsy side effects, histological criteria...
January 11, 2018: Progrès en Urologie
Esther Hendrika Johanna Hamoen, Caroline M A Hoeks, Diederik M Somford, Inge M van Oort, Henk Vergunst, Jorg R Oddens, Geert A Smits, Leonard P Bokhorst, J Alfred Witjes, Maroeska M Rovers, Christina A Hulsbergen-van de Kaa, Jelle O Barentsz
BACKGROUND: Active surveillance (AS) aims to reduce overtreatment of low-risk prostate cancer (PC). Incorporating multiparametric magnetic resonance imaging (mp-MRI) and MR-guided biopsy (MRGB) in an AS protocol might contribute to more accurate identification of AS candidates. OBJECTIVE: To evaluate the value of 3T mp-MRI and MRGB in PC patients on AS at inclusion and after 12-mo follow-up. DESIGN, SETTING, AND PARTICIPANTS: Patients with cT1c-cT2 PC, prostate-specific antigen (PSA) ≤10ng/ml, PSA density <0...
January 10, 2018: European Urology Focus
M Z Zuo, W L Zhao, C G Wei, C Y Zhang, R Wen, Y F Gu, M J Li, Y Y Zhang, J F Wu, X Li, J K Shen
Objective: To investigate the preliminary applicability of Prostate Imaging Reporting and Data System version 2 (PI-RADS v2) score in the condition of 3.0T multi-parametric magnetic resonance imaging (Mp-MRI) combined with clinical classic indicators for the diagnosis of prostate cancer (PCa). Methods: The clinical and MRI materials of 247 patients of suspicious prostate disease treated in Second Affiliated Hospital of Soochow University from June 2015 to November 2016 were analyzed retrospectively, including 110 cases with PCa and 137 cases without cancer...
December 19, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Maurizio Del Monte, Costantino Leonardo, Vincenzo Salvo, Marcello Domenico Grompone, Martina Pecoraro, Arnaldo Stanzione, Riccardo Campa, Francesco Vullo, Alessandro Sciarra, Carlo Catalano, Valeria Panebianco
In the original publication of the article, the first and last names of the second author were interchanged.
January 9, 2018: La Radiologia Medica
Kareem K Elfatairy, Christopher P Filson, Martin G Sanda, Adeboye O Osunkoya, Rachel L Geller, Sherif G Nour
OBJECTIVE: To evaluate the test-retest reliability of repeated in-bore MRI-guided prostate biopsy (MRGB). METHODS: Nineteen lesions in 7 patients who had consecutive MRGBs were retrospectively analyzed. Three patients had only 2 consecutive MRGBs and two patients had 3 consecutive MRGBs. Both multiparametric MRI and MRGBs were performed using a 3T MRI scanner. Pathology results were categorized into benign, suspicious and malignant. Consistency between 1st and subsequent biopsy results were analyzed as well as the negative predictive value (NPV) for prostate cancer...
January 8, 2018: British Journal of Radiology
Ron Golan, Adrien Bernstein, Art Sedrakyan, Timothy J Daskivich, Dongyi T Du, Behfar Ehdaie, Benjamin Fisher, Michael A Gorin, Ivan Grunberger, Bradley Hunt, Hongying H Jiang, Hyung L Kim, Danica Marinac-Dabic, Leonard S Marks, Timothy D McClure, Jeffrey S Montgomery, Dipen J Parekh, Sanoj Punnen, Stephen Scionti, Charles J Viviano, John T Wei, Sven Wenske, James S Wysock, John Rewcastle, Mark Carol, Marc Oczachowski, Jim C Hu
BACKGROUND: The accumulation of data through a prospective, multi-center coordinated registry network (CRN) is a practical way to gather real world evidence on the performance of novel prostate ablation technologies. Urologic oncologists, targeted biopsy experts, industry representatives, and the Food and Drug Administration (FDA) convened to discuss the role, feasibility, and important data elements of a CRN to assess new and existing prostate ablation technologies. METHODS: A multi-round Delphi consensus approach was performed which included the opinion of 15 expert urologists, representatives of the FDA and leadership from HIFU device manufacturers...
January 4, 2018: Journal of Urology
Juho T Eineluoto, Petrus Järvinen, Anu Kenttämies, Tuomas P Kilpeläinen, Hanna Vasarainen, Kevin Sandeman, Andrew Erickson, Tuomas Mirtti, Antti Rannikko
INTRODUCTION: This study was conducted to describe the changes in repeat multiparametric MRI (mpMRI) occurring in prostate cancer (PCa) patients during active surveillance (AS), and to study possible associations between mpMRI-related parameters in predicting prostate biopsy (Bx) Gleason score (GS) upgrading >3+3 and protocol-based treatment change (TC). MATERIALS AND METHODS: The study cohort consisted of 76 AS patients with GS 3+3 PCa and at least two consecutive mpMRIs of the prostate performed between 2006-2015...
2017: PloS One
Juha Knaapila, Marianne Gunell, Kari Syvänen, Otto Ettala, Esa Kähkönen, Tarja Lamminen, Marjo Seppänen, Ivan Jambor, Antti Rannikko, Jarno Riikonen, Eveliina Munukka, Erkki Eerola, Antti J Hakanen, Peter J Boström
BACKGROUND: Transrectal ultrasound-guided prostate biopsy (TRUS-Bx) is typically considered a safe procedure. However, infectious complications have been increasing. OBJECTIVE: To determine the contemporary rate of biopsy-related infectious and noninfectious complications after TRUS-Bx, and identify potential risk factors associated with the complications. DESIGN, SETTING, AND PARTICIPANTS: This was a prospective multicenter study and a substudy of a trial investigating the role of magnetic resonance imaging (MRI) in prostate cancer diagnosis (multi-IMPROD, NCT02241122)...
December 20, 2017: European Urology Focus
Eric Grönlund, Silvia Johansson, Tufve Nyholm, Camilla Thellenberg, Anders Ahnesjö
BACKGROUND: Gleason scores for prostate cancer correlates with an increased recurrence risk after radiotherapy (RT). Furthermore, higher Gleason scores correlates with decreasing apparent diffusion coefficient (ADC) data from diffusion weighted MRI (DWI-MRI). Based on these observations, we present a formalism for dose painting prescriptions of prostate volumes based on ADC images mapped to Gleason score driven dose-responses. METHODS: The Gleason score driven dose-responses were derived from a learning data set consisting of pre-RT biopsy data and post-RT outcomes for 122 patients treated with a homogeneous dose to the prostate...
December 20, 2017: Acta Oncologica
Deborah K Hill, Andreas Heindl, Konstantinos Zormpas-Petridis, David J Collins, Leslie R Euceda, Daniel N Rodrigues, Siver A Moestue, Yann Jamin, Dow-Mu Koh, Yinyin Yuan, Tone F Bathen, Martin O Leach, Matthew D Blackledge
Diffusion-weighted magnetic resonance imaging (DWI) enables non-invasive, quantitative staging of prostate cancer via measurement of the apparent diffusion coefficient (ADC) of water within tissues. In cancer, more advanced disease is often characterized by higher cellular density (cellularity), which is generally accepted to correspond to a lower measured ADC. A quantitative relationship between tissue structure and in vivo measurements of ADC has yet to be determined for prostate cancer. In this study, we establish a theoretical framework for relating ADC measurements with tissue cellularity and the proportion of space occupied by prostate lumina, both of which are estimated through automatic image processing of whole-slide digital histology samples taken from a cohort of six healthy mice and nine transgenic adenocarcinoma of the mouse prostate (TRAMP) mice...
2017: Frontiers in Oncology
Jennifer Creed, Laurence Klotz, Andrew Harbottle, Andrea Maggrah, Brian Reguly, Anne George, Vincent Gnanapragasm
PURPOSE: To determine the clinical performance of a blood-based test for clinically significant (CS) prostate cancer (PCa) (grade group ≥ 2) intended for use in men with prostate serum antigen levels in the 'grey zone' (PSA < 10 ng/ml). The test quantifies a previously described 3.4 kb mitochondrial DNA (mtDNA) deletion. METHODS: In a first prospective study of an MRI-guided re-biopsy population (n = 126), the 3.4 kb deletion and 18S rRNA gene were amplified from plasma...
December 16, 2017: World Journal of Urology
S M Bruinsma, L Zhang, M J Roobol, C H Bangma, E W Steyerberg, D Nieboer, M Van Hemelrijck
OBJECTIVES: The Movember Foundation launched the Global Action Plan Prostate Cancer Active Surveillance (GAP3) initiative to create a global consensus on the selection and monitoring of men with low-risk prostate cancer (PCa) on active surveillance (AS). The aim of this study is to present data on inclusion and follow-up for AS in this unique global AS database. SUBJECTS/PATIENTS (OR MATERIALS) AND METHODS: Between 2014 and 2016, the database was created by combining patient data from 25 established AS cohorts worldwide (USA, Canada, Australasia, UK, Europe) (n=15,101)...
December 15, 2017: BJU International
Fabian Steinkohl, Leonhard Gruber, Jasmin Bektic, Udo Nagele, Friedrich Aigner, Thomas R W Herrmann, Michael Rieger, Daniel Junker
PURPOSE: Often PIRADS 3 findings are usually followed up with further MRIs of the prostate. Current guidelines do not state an optimal interval between the initial MRI and the follow-up MRI. The aim of this study was to find out if PIRADS 3 lesions evolve over time and to determine how long the optimal interval between initial MRI and follow-ups should be. METHODS: In this retrospective study, 141 consecutive patients were included who underwent at least one follow-up MRI after an initial PIRADS 3 finding...
December 14, 2017: World Journal of Urology
James Voss, Raj Pal, Shaista Ahmed, Magnus Hannah, Adil Jaulim, Thomas Walton
OBJECTIVE: To assess the accuracy and utility of routine multiparametric magnetic resonance imaging (mpMRI) and transperineal template-guided prostate biopsy (TPB) after enrolment in active surveillance (AS). PATIENTS AND METHODS: From April 2012 to December 2016 consecutive men from our single institution, diagnosed with low- or intermediate-risk prostate cancer on transrectal ultrasonography-guided biopsy, were offered further staging with early mpMRI and TPB within 12 months of diagnosis...
December 14, 2017: BJU International
Alexander D J Baur, Julia Schwabe, Julian Rogasch, Andreas Maxeiner, Tobias Penzkofer, Carsten Stephan, Marc Rudl, Bernd Hamm, Ernst-Michael Jung, Thom Fischer
INTRODUCTION: Dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) and contrast-enhanced ultrasound (CEUS) analyse tissue vascularization. We evaluated if CEUS can provide comparable information as DCE-MRI for the detection of prostate cancer (PCa) and prediction of its aggressiveness. MATERIAL AND METHODS: A post-hoc evaluation of 92 patients was performed. In each patient CEUS and DCE-MRI parameters of the most suspicious lesion identified on MRI were analysed...
December 13, 2017: European Radiology
Vinaya Srirangam, Bhavan Prasad Rai, Ahmed Abroaf, Samita Agarwal, Sergey Tadtayev, Charlotte Foley, Tim Lane, Jim Adshead, Nikhil Vasdev
Introduction: Atypical small acinar proliferation (ASAP) and high grade prostatic intraepithelial neoplasia (HGPIN) are considered precancerous. We aimed to measure the rate of repeat biopsy and adenocarcinoma in patients with ASAP and HGPIN and identify any clinico-pathologic parameters at diagnosis of ASAP/HGPIN that are predictive of adenocarcinoma. Materials and Methods: Patients with a diagnosis of ASAP/HGPIN with no previous or concomitant cancer were identified...
November 2017: Current Urology
Yuji Hakozaki, Hisashi Matsushima, Jimpei Kumagai, Taro Murata, Tomoko Masuda, Yoko Hirai, Mai Oda, Nobuo Kawauchi, Munehiro Yokoyama, Yukio Homma
BACKGROUND: This study compared the detection rates for clinically significant prostate cancer (CSPC) between magnetic resonance imaging and ultrasonography (MRI/US)-fusion-targeted biopsy (TB), systematic biopsy (SB) and combination of TB and SB. METHODS: This prospective study evaluated simultaneous TB and SB for consecutive patients with suspicious lesions that were detected using pre-biopsy multiparametric MRI. A commercially available real-time virtual sonography system was used to perform the MRI/US-fusion TB with the transperineal technique...
December 12, 2017: BMC Urology
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