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Mri and prostate biopsy

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https://www.readbyqxmd.com/read/28086856/the-addition-of-a-sagittal-image-fusion-improves-the-prostate-cancer-detection-in-a-sensor-based-mri-ultrasound-fusion-guided-targeted-biopsy
#1
Karsten Günzel, Hannes Cash, John Buckendahl, Maximilian Königbauer, Patrick Asbach, Matthias Haas, Jörg Neymeyer, Stefan Hinz, Kurt Miller, Carsten Kempkensteffen
BACKGROUND: To explore the diagnostic benefit of an additional image fusion of the sagittal plane in addition to the standard axial image fusion, using a sensor-based MRI/US fusion platform. METHODS: During July 2013 and September 2015, 251 patients with at least one suspicious lesion on mpMRI (rated by PI-RADS) were included into the analysis. All patients underwent MRI/US targeted biopsy (TB) in combination with a 10 core systematic prostate biopsy (SB). All biopsies were performed on a sensor-based fusion system...
January 13, 2017: BMC Urology
https://www.readbyqxmd.com/read/28075651/imaging-characteristics-of-prostate-cancer-patients-who-discontinued-active-surveillance-on-3-t-multiparametric-prostate-mri
#2
David J Habibian, Corinne C Liu, Alex Dao, Kaitlin E Kosinski, Aaron E Katz
OBJECTIVE: Early-stage prostate cancer may be followed with active surveillance to avoid overtreatment. Our institution's active surveillance regimen uses annual MRI in place of serial biopsies, and biopsies are performed only when clinically necessary. The objective of our study was to report the multiparametric MRI characteristics of prostate cancer patients who discontinued active surveillance at our institution after repeat imaging revealed possible evidence of tumor upgrading. MATERIALS AND METHODS: The Department of Urology at Winthrop University Hospital prospectively maintains a database of prostate cancer patients who are monitored with active surveillance...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28074780/mri-directed-cognitive-fusion-guided-biopsy-of-the-anterior-prostate-tumors
#3
Ian G Murphy, Elaine NiMhurchu, Robert G Gibney, Colm J McMahon
PURPOSE: We aimed to evaluate the efficacy of magnetic resonance imaging (MRI)-directed cognitive fusion transrectal ultrasonography (TRUS)-guided anterior prostate biopsy for diagnosis of anterior prostate tumors and to illustrate this technique. METHODS: A total of 39 patients with previous negative TRUS biopsy, but high clinical suspicion of occult prostate cancer, prospectively underwent prostate MRI including diffusion-weighted imaging (DWI). Patients with a suspicious anterior lesion on MRI underwent targeted anterior gland TRUS guided biopsy with cognitive fusion technique using sagittal probe orientation...
January 11, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28073197/detection-rate-for-significant-cancer-at-confirmatory-biopsy-in-men-enrolled-in-active-surveillance-protocol-20-cores-vs-30-cores-vs-mri-trus-fusion-prostate-biopsy
#4
Pietro Pepe, Sebastiano Cimino, Antonio Garufi, Giandomenico Priolo, Giorgio Ivan Russo, Raimondo Giardina, Giulio Reale, Michele Barbera, Paolo Panella, Michele Pennisi, Giuseppe Morgia
INTRODUCTION: The detection rate for significant prostate cancer of extended vs saturation vs mMRI/TRUS fusion biopsy was prospectively evaluated in men enrolled in active surveillance (AS) protocol. Mterials and methods: From May 2013 to September 2016 75 men aged 66 years (median) with very low risk PCa were enrolled in an AS protocol and elegible criteria were: life expectancy greater than 10 years, cT1C, PSA below 10 ng/ml, PSA density < 0.20, 2 < unilateral positive biopsy cores, Gleason score (GS) equal to 6, greatest percentage of cancer (GPC) in a core < 50%...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28073196/mri-us-fusion-prostate-biopsy-our-initial-experience
#5
Vito Lacetera, Bernardo Cervelli, Antonio Cicetti, Giuliana Gabrielloni, Michele Montesi, Roberto Morcellini, Gianni Parri, Emilio Recanatini, Gianluca Giglioni, Andrea Benedetto Galosi, Valerio Beatrici
AIM: The objective of this study is to present our initial experience with magnetic resonance imaging/ultrasound (MRI/US) fusion biopsy using the Koelis Trinity device after the first consecutive 59 patients. MATERIALS AND METHODS: 59 consecutive patients with suspected prostate cancer (PCA) underwent prostate biopsy using Trinity Koelis® (Koelis, Grenoble, France). We divided the patients into 2 groups: patients with a previous negative mapping underwent to a MRI/US fusion re-biopsy (Group A); and biopsy-naïve patients who underwent to a first stereotactic 3-D mapping of the prostate (Group B)...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28073195/cognitive-zonal-fusion-biopsy-of-the-prostate-original-technique-between-target-and-saturation
#6
Andrea B Galosi, Guevar Maselli, Giulia Sbrollini, Gaetano Donatelli, Lorenzo Montesi, Matteo Tallè, Rodolfo Montironi
: We describe our experience in prostate biopsy using a new standardized cognitive fusion techniques, that we call "cognitive zonal fusion biopsy". This new technique is based on two operative options: the first based on target biopsies, the Cognitive Target Biopsy (CTB) if the same target was detected with transrectal ultrasound (TRUS) and multiparametric magnetic resonance (mpMRI); the second based on saturation biopsies, the Zonal Saturation Biopsy (ZSB) on anatomical zone/s containing the region of interest if the same target was not evident with TRUS and MRI...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28069159/developing-a-new-pi-rads-v2-based-nomogram-for-forecasting-high-grade-prostate-cancer
#7
X-K Niu, W-F He, Y Zhang, S K Das, J Li, Y Xiong, Y-H Wang
AIM: To establish a predictive nomogram for high-grade prostate cancer (HGPCa) in biopsy-naive patients based on the Prostate Imaging-Reporting and Data System version 2 (PI-RADS v2), magnetic resonance imaging (MRI)-based prostate volume (PV), MRI-based PV-adjusted prostate-specific antigen density (PSAD), and other classical parameters. MATERIAL AND METHODS: Between August 2014 and August 2015, 158 men who were eligible for analysis were included as the training cohort...
January 6, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28063613/why-and-where-do-we-miss-significant-prostate-cancer-with-multi-parametric-magnetic-resonance-imaging-followed-by-magnetic-resonance-guided-and-transrectal-ultrasound-guided-biopsy-in-biopsy-na%C3%A3-ve-men
#8
Martijn G Schouten, Marloes van der Leest, Morgan Pokorny, Martijn Hoogenboom, Jelle O Barentsz, Les C Thompson, Jurgen J Fütterer
BACKGROUND: Knowledge of significant prostate (sPCa) locations being missed with magnetic resonance (MR)- and transrectal ultrasound (TRUS)-guided biopsy (Bx) may help to improve these techniques. OBJECTIVE: To identify the location of sPCa lesions being missed with MR- and TRUS-Bx. DESIGN, SETTING, AND PARTICIPANTS: In a referral center, 223 consecutive Bx-naive men with elevated prostate specific antigen level and/or abnormal digital rectal examination were included...
January 4, 2017: European Urology
https://www.readbyqxmd.com/read/28048079/mo-de-207b-02-assessment-and-localization-of-aggressiveness-in-prostate-cancer-using-dynamic-contrast-enhanced-mri
#9
N A Parra, F Chinea, S Punnen, M Abramowitz, A Pollack, R Stoyanova
PURPOSE: To automatically assess prostate cancer aggressiveness and to map areas of high risk based on quantitative features from Dynamic Contrast Enhanced-MRI (DCE-MRI). METHODS: Fifty-seven patients with DCE-MRI acquired on 3T Discovery MR750 GE were retrospectively analyzed. Prostate, peripheral zone (PZ) and gluteus maximus (DCEGM) were manually contoured. Unsupervised pattern recognition was used to decompose the DCE data in prostate as the product W.H of k weight maps W and k patterns H, k=3...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047097/we-fg-206-09-association-of-prostate-volumes-with-restricted-diffusion-and-prostate-cancer-aggressiveness
#10
Y Tschudi
PURPOSE: To create an automatic workflow for evaluation of thresholds of restricted diffusion, based on Apparent Diffusion Coefficient (ADC) values in multiparametric (mp)MRI of the prostate. To investigate the association of these volumes with biopsy Gleason Score (GS). METHODS: Patients with prostate cancer, imaged on 3T Discovery MR750 (GE, Waukesha, WI) magnet were selected from departmental database based on the presence of mpMRI exam. All subsequent analyses were performed using Java plugins in MIM (MIM, Cleveland, Ohio)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046837/su-f-t-42-mri-and-trus-image-fusion-as-a-mode-of-generating-more-accurate-prostate-contours
#11
M Petronek, A Purysko, S Balik, J Ciezki, E Klein, D Wilkinson
PURPOSE: Transrectal Ultrasound (TRUS) imaging is utilized intra-operatively for LDR permanent prostate seed implant treatment planning. Prostate contouring with TRUS can be challenging at the apex and base. This study attempts to improve accuracy of prostate contouring with MRI-TRUS fusion to prevent over- or under-estimation of the prostate volume. METHODS: 14 patients with previous MRI guided prostate biopsy and undergone an LDR permanent prostate seed implant have been selected...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046310/th-cd-206-02-best-in-physics-imaging-3d-prostate-segmentation-in-mr-images-using-patch-based-anatomical-signature
#12
X Yang, A Jani, P Rossi, H Mao, W Curran, T Liu
PURPOSE: MRI has shown promise in identifying prostate tumors with high sensitivity and specificity for the detection of prostate cancer. Accurate segmentation of the prostate plays a key role various tasks: to accurately localize prostate boundaries for biopsy needle placement and radiotherapy, to initialize multi-modal registration algorithms or to obtain the region of interest for computer-aided detection of prostate cancer. However, manual segmentation during biopsy or radiation therapy can be time consuming and subject to inter- and intra-observer variation...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042330/comparison-of-68-ga-hbed-cc-psma-pet-ct-and-multiparametric-mri-for-gross-tumour-volume-detection-in-patients-with-primary-prostate-cancer-based-on-slice-by-slice-comparison-with-histopathology
#13
Constantinos Zamboglou, Vanessa Drendel, Cordula A Jilg, Hans C Rischke, Teresa I Beck, Wolfgang Schultze-Seemann, Tobias Krauss, Michael Mix, Florian Schiller, Ulrich Wetterauer, Martin Werner, Mathias Langer, Michael Bock, Philipp T Meyer, Anca L Grosu
PURPOSE: The exact detection and delineation of the intraprostatic tumour burden is crucial for treatment planning in primary prostate cancer (PCa). We compared (68)Ga-HBED-CC-PSMA PET/CT with multiparametric MRI (mpMRI) for diagnosis and tumour delineation in patients with primary PCa based on slice by slice correlation with histopathological reference material. METHODOLOGY: Seven patients with histopathologically proven primary PCa underwent (68)Ga-HBED-CC-PSMA PET/CT and MRI followed by radical prostatectomy...
2017: Theranostics
https://www.readbyqxmd.com/read/28039927/multi-center-validation-of-prostate-tumor-localization-using-multi-parametric-mri-and-prior-knowledge
#14
Cuong Viet Dinh, Peter Steenbergen, Ghazaleh Ghobadi, Henk van der Poel, Stijn W T P J Heijmink, Jeroen de Jong, Sofie Isebaert, Karin Haustermans, Evelyne Lerut, Raymond Oyen, Yangming Ou, Davatzikos Christos, Uulke A van der Heide
PURPOSE: Tumor localization provides crucial information for radiotherapy dose differentiation treatments, such as focal dose escalation and dose painting by numbers, which aim at achieving tumor control with minimal side effects. Multi-parametric (mp-)MRI is increasingly used for tumor detection and localization in prostate because of its ability to visualize tissue structure and to reveal tumor characteristics. However, it can be challenging to distinguish cancer, particularly in the transition zone...
December 31, 2016: Medical Physics
https://www.readbyqxmd.com/read/28031426/molecular-profiling-to-determine-clonality-of-serial-magnetic-resonance-imaging-ultrasound-fusion-biopsies-from-men-on-active-surveillance-for-low-risk-prostate-cancer
#15
Ganesh S Palapattu, Simpa S Salami, Andi K Cani, Daniel H Hovelson, Lorena Lazo de la Vega, Kelly R Vandenberg, Jarred V Bratley, Chia-Jen Liu, Lakshmi P Kunju, Jeffery S Montgomery, Todd M Morgan, Shyam Natarajan, Jiaoti Huang, Scott A Tomlins, Leonard S Marks
PURPOSE: To determine whether MRI/ultrasound (MRI/US) fusion biopsy facilitates longitudinal resampling of the same clonal focus of prostate cancer and to determine whether high-grade cancers can evolve from low-grade clones. EXPERIMENTAL DESIGN: All men on active surveillance who underwent tracking MRI/US fusion biopsy of Gleason 6 prostate cancer, on at least two distinct occasions, between 2012 and 2014 were enrolled. MRI/US fusion was used to track and resample specific cancer foci...
October 7, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28027738/prostate-cancer-diagnosis-efficacy-of-a-simple-electromagnetic-mri-trus-fusion-method-to-target-biopsies
#16
Amina Jelidi, Mickael Ohana, Aïssam Labani, Guillaume Alemann, Herve Lang, Catherine Roy
OBJECTIVE: To assess that transrectal ultrasound guidance (TRUS) targeted biopsies (TB) aimed with an easy to use electronic real-time fusion registration device have a higher rate of prostate cancer (PC) detection than standard biopsies (SB). MATERIAL AND METHODS: This prospective study included 130 patients referred for TRUS biopsies after suspicious MRI. They underwent 16-core SB and 2 to 3 cores in each MRI suspicious area, using a fusion software. We noted SB and TB positivity for PC and Gleason score (GS)...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28026201/the-learning-curve-in-prostate-mri-interpretation-self-directed-learning-versus-continual-reader-feedback
#17
Andrew B Rosenkrantz, Abimbola Ayoola, David Hoffman, Anunita Khasgiwala, Vinay Prabhu, Paul Smereka, Molly Somberg, Samir S Taneja
OBJECTIVE: The purpose of this study is to evaluate the roles of self-directed learning and continual feedback in the learning curve for tumor detection by novice readers of prostate MRI. MATERIALS AND METHODS: A total of 124 prostate MRI examinations classified as positive (n = 52; single Prostate Imaging Reporting and Data System [PI-RADS] category 3 or higher lesion showing Gleason score ≥ 7 tumor at MRI-targeted biopsy) or negative (n = 72; PI-RADS category 2 or lower and negative biopsy) for detectable tumor were included...
December 27, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28008754/risk-factors-for-gleason-score-upgrading-following-radical-prostatectomy-a-review-of-the-current-literature
#18
David R Alchin, Declan Murphy, Nathan Lawrentschuk
INTRODUCTION: Gleason score discordance can confound optimal treatment allocation of patients diagnosed with prostate cancer and place these patients at risk of worse oncological outcomes. Its prevalence remains endemic; its exact causation remains unknown. The objective of this review was to examine the observational studies of patient cohorts who have undergone radical prostatectomy with the aim of identifying any preoperative variables that may be associated with an upgrade in final prostatectomy Gleason score...
December 22, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28005230/comparison-of-free-hand-transperineal-mpmri-trus-fusion-guided-biopsy-with-transperineal-12-core-systematic-biopsy-for-the-diagnosis-of-prostate-cancer-a-single-center-prospective-study-in-china
#19
Qing Zhang, Wei Wang, Bing Zhang, Jong Shi, Yao Fu, Danyan Li, Suhan Guo, Shengjie Zhang, Haifeng Huang, Xuping Jiang, Weimin Zhou, Hongqian Guo
OBJECTIVES: To prospectively compare biopsy outcomes between free-hand transperineal mpMRI/TRUS fusion targeted biopsy (TB) and transperineal systematic biopsy (SB) in patients with first prostate biopsy. PATIENTS AND METHODS: In all, 224 consecutive patients with the suspicion of PCa were investigated. All patients were evaluated by 3.0-T mpMRI applying the ESUR criteria. All patients underwent free-hand transperineal mpMRI/TRUS fusion TB and additionally a transperineal SB...
December 22, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/28002857/mri-of-the-prostate-recommendations-on-patient-preparation-and-scanning-protocol
#20
Tobias Franiel, Michael Quentin, Ullrich Gerd Mueller-Lisse, Lars Schimmoeller, Patrick Asbach, Stefan Rödel, Winfried Willinek, Katja Hueper, Dirk Beyersdorff, Matthias Röthke
The Working Group Uroradiology and Urogenital Diagnosis of the German Roentgen Society has developed uniform recommendations for the preparation and implementation of prostate MRI. In the first part detailed recommendations are given in tabular form regarding 1. anamnestic data before prostate MRI, 2. termination of examinations and preparation of examinations, 3. examination protocol and 4. MRI-guided in-bore biopsy. In the second part, the recommendations are discussed in detail and relevant background information is provided...
January 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
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