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mp MRI prostate

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https://www.readbyqxmd.com/read/29127451/development-and-validation-of-3d-printed-virtual-models-for-robot-assisted-radical-prostatectomy-and-partial-nephrectomy-urologists-and-patients-perception
#1
Francesco Porpiglia, Riccardo Bertolo, Enrico Checcucci, Daniele Amparore, Riccardo Autorino, Prokar Dasgupta, Peter Wiklund, Ashutosh Tewari, Evangelos Liatsikos, Cristian Fiori
PURPOSE: To test the face and content validity of 3D virtual-rendered printed models used before robot-assisted prostate cancer and nephron-sparing surgery. METHODS: Patients who underwent live surgery during an international urological meeting organized in January 2017 were enrolled. Those with organ-confined prostate cancer underwent robot-assisted radical prostatectomy. Patients with a single renal tumor underwent minimally invasive nephron-sparing surgery. High-resolution (HR) imaging was obtained for all patients...
November 10, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/29098169/optimized-b-value-selection-for-the-discrimination-of-prostate-cancer-grades-including-the-cribriform-pattern-using-diffusion-weighted-imaging
#2
Sarah L Hurrell, Sean D McGarry, Amy Kaczmarowski, Kenneth A Iczkowski, Kenneth Jacobsohn, Mark D Hohenwalter, William A Hall, William A See, Anjishnu Banerjee, David K Charles, Marja T Nevalainen, Alexander C Mackinnon, Peter S LaViolette
Multiparametric magnetic resonance imaging (MP-MRI), including diffusion-weighted imaging, is commonly used to diagnose prostate cancer. This radiology-pathology study correlates prostate cancer grade and morphology with common b-value combinations for calculating apparent diffusion coefficient (ADC). Thirty-nine patients undergoing radical prostatectomy were recruited for MP-MRI prior to surgery. Diffusion imaging was collected with seven b-values, and ADC was calculated. Excised prostates were sliced in the same orientation as the MRI using 3-D printed slicing jigs...
January 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29094851/prospective-nonrandomized-study-of-diagnostic-accuracy-comparing-prostate-cancer-detection-by-transrectal-ultrasound-guided-biopsy-to-magnetic-resonance-imaging-with-subsequent-mri-guided-biopsy-in-biopsy-na%C3%A3-ve-patients
#3
Roberto Castellucci, Ana I Linares Quevedo, Francisco J Sánchez Gómez, Jesús Díez Rodríguez, Leopoldo Cogorno, Isidro Cogollos Acuña, Isabel Salmerón Béliz, Marta Muñoz Fernández de Legaría, Luis Martínez Piñeiro
BACKGROUND: To evaluate the diagnostic efficacy in cancer prostate (PCa) of Multiparametric prostate magnetic resonance imaging (mp-MRI) targeted biopsy compared to standard systematic transrectal ultrasound-guided biopsy (TRUSGB) in biopsy-naïve patients. METHODS: A total of 168 biopsy-naïve men with clinical suspicion of PCa due to elevated PSA levels and/or an abnormal digital rectal examination were consecutively enrolled from July 2011 to July 2014. All patients underwent TRUSGB...
December 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/29020718/mp-mri-could-improve-the-diagnosis-of-prostate-cancer
#4
EDITORIAL
Jonathan Rees
No abstract text is available yet for this article.
February 2017: Practitioner
https://www.readbyqxmd.com/read/29019021/analysis-of-histological-findings-obtained-combining-us-mp-mri-fusion-guided-biopsies-with-systematic-us-biopsies-mp-mri-role-in-prostate-cancer-detection-and-false-negative
#5
Eliodoro Faiella, Domiziana Santucci, Federico Greco, Giulia Frauenfelder, Viola Giacobbe, Giovanni Muto, Bruno Beomonte Zobel, Rosario Francesco Grasso
AIMS AND OBJECTIVES: To evaluate the diagnostic accuracy of mp-MRI correlating US/mp-MRI fusion-guided biopsy with systematic random US-guided biopsy in prostate cancer diagnosis. MATERIALS AND METHODS: 137 suspected prostatic abnormalities were identified on mp-MRI (1.5T) in 96 patients and classified according to PI-RADS score v2. All target lesions underwent US/mp-MRI fusion biopsy and prostatic sampling was completed by US-guided systematic random 12-core biopsies...
October 10, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28941924/risk-stratification-of-equivocal-pi-rads-lesions-in-mp-mri-of-the-prostate
#6
T Ullrich, M Quentin, C Arsov, A K Schmaltz, A Tschischka, N Laqua, A Hiester, D Blondin, R Rabenalt, P Albers, G Antoch, L Schimmöller
PURPOSE: To systematically analyze patients with PI-RADS-3-lesions (called 'equivocal' according to PI-RADS v2) in multiparametric prostate MRI (mp-MRI) and MR-targeted plus systematic transrectal ultrasound-guided (TRUS-GB) biopsies as reference standard. MATERIAL AND METHODS: One hundred and twenty consecutive patients with a PI-RADS overall score of 3 after mp-MRI (T2WI, DWI, DCE-MRI) at 3T and subsequent targeted MRI/US fusion-guided (FUS-GB) plus systematic 12-core TRUS-GB were retrospectively included in this study...
September 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28934811/current-utilization-and-acceptance-of-multiparametric-mri-in-the-diagnosis-of-prostate-cancer-a-regional-survey
#7
Tim Ullrich, Lars Schimmöller, Mathias Oymanns, Dirk Blondin, Frederic Dietzel, Julian Kirchner, Christian Arsov, Robert Rabenalt, Peter Albers, Gerald Antoch, Michael Quentin
Purpose To assess the current regional acceptance, valuation, and clinical role of multiparametric MRI (mp-MRI) in prostate cancer diagnostics by patients and physicians. Materials and Methods Of 482 distributed standardized questionnaires, 328 patient and 31 physician questionnaires (urological and general practitioners in and around Düsseldorf) were analyzed over a period of 11 months. Questions were asked concerning general knowledge about prostate cancer, current diagnostic procedures, and knowledge about mp-MRI and MRI-guided biopsy...
September 21, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28837046/association-between-pathology-and-texture-features-of-multi-parametric-mri-of-the-prostate
#8
Peter Kuess, Piotr Andrzejewski, David Nilsson, Petra Georg, Johannes Knoth, Martin Susani, Johan Trygg, Thomas H Helbich, Stephan H Polanec, Dietmar Georg, Tufve Nyholm
The role of multi-parametric (mp)MRI in the diagnosis and treatment of prostate cancer has increased considerably. An alternative to visual inspection of mpMRI is the evaluation using histogram-based (first order statistics) parameters and textural features (second order statistics). The aims of the present work were to investigate the relationship between benign and malignant sub-volumes of the prostate and textures obtained from mpMR images. The performance of tumor prediction was investigated based on the combination of histogram-based and textural parameters...
August 24, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28803622/effect-of-hyoscine-butylbromide-on-prostate-multiparametric-mri-anatomical-and-functional-image-quality
#9
R A Slough, I Caglic, N L Hansen, A J Patterson, T Barrett
AIM: To evaluate the effect of the spasmolytic agent hyoscine butylbromide (HBB) on the quality of anatomical and functional imaging of the prostate. MATERIALS AND METHODS: One hundred and seventy-three patients were included in this retrospective study. Eighty-seven patients received intravenous HBB prior to scanning (HBB group) and 86 patients did not (non-HBB group). Multiparametric (mp) 3 T magnetic resonance imaging (MRI) was performed using a 32-channel body coil...
August 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28799090/prostate-cancer-detection-among-readers-with-different-degree-of-experience-using-ultra-high-b-value-diffusion-weighted-imaging-is-a-non-contrast-protocol-sufficient-to-detect-significant-cancer
#10
D Hausmann, N Aksöz, J von Hardenberg, T Martini, N Westhoff, S Buettner, S O Schoenberg, P Riffel
AIM: To evaluate the accuracy of a T2-weighted (T2w) - and a parallel transmit zoomed b = 2000 s/mm2 (b2000) - diffusion-weighted imaging sequence among three readers with different degrees of experience for prostate cancer (Pca) detection. METHODS: Ninety-three patients with suspected Pca were enrolled. For b2000 a two-dimensional spatially-selective RF pulse using an echo-planar transmit trajectory was applied, and the field of view (FOV) was reduced to one-third...
August 10, 2017: European Radiology
https://www.readbyqxmd.com/read/28792144/comparison-of-multiparametric-and-biparametric-mri-in-first-round-cognitive-targeted-prostate-biopsy-in-patients-with-psa-levels-under-10-ng-ml
#11
Dong Hoon Lee, Jong Kil Nam, Seung Soo Lee, Ji Yeon Han, Joon Woo Lee, Moon Kee Chung, Sung Woo Park
PURPOSE: To determine the efficacy of cognitive targeted prostate biopsy using biparametric magnetic resonance imaging (b-MRI) for patients with prostate-specific antigen levels under 10 ng/mL. MATERIALS AND METHODS: We reviewed data from 123 consecutive patients who underwent cognitive targeted prostate biopsy using prostate MRI. Of these patients, the first 55 underwent prostate biopsy using multiparametric MRI (mp-MRI), and the remaining 68 underwent prostate biopsy using b-MRI...
September 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28753883/management-of-radiologically-indeterminate-magnetic-resonance-imaging-signals-in-men-at-risk-of-prostate-cancer
#12
Esmée C A van der Sar, Veeru Kasivisvanathan, Mrishta Brizmohun, Alex Freeman, Shonit Punwani, Rifat Hamoudi, Mark Emberton
BACKGROUND: Multiparametric magnetic resonance imaging (mp-MRI) is becoming an increasingly important diagnostic tool for prostate cancer. So far there has been little focus on management for indeterminate mp-MRI results. OBJECTIVE: To describe outcomes for a cohort of men rated as having an indeterminate mp-MRI result. DESIGN, SETTING, AND PARTICIPANTS: Patients were identified retrospectively from a single UK centre between October 2010 and January 2015...
April 19, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28749167/diagnostic-value-of-semi-quantitative-and-quantitative-analysis-of-functional-parameters-in-multiparametric-mri-of-the-prostate
#13
Elke Hauth, Daniela Halbritter, Horst Jaeger, Horst Hohmuth, Meinrad Beer
OBJECTIVE: To determine the diagnostic value of semi-quantitative and quantitative parameters of three functional techniques in multiparametric (mp)-MRI of the prostate. METHODS: Mp-MRI was performed in 110 patients with suspicion of prostate cancer (PCA) before transrectal ultrasound (TRUS)-guided core biopsy. Peak-enhancement, initial and post-initial enhancement, initial area under gadolinium curve, Ktrans (forward rate constant), Kep (efflux rate constant), Ve (extracellular volume), ADC (apparent diffusion coefficient) and MR spectroscopy ratio were obtained for malignant and benign lesions...
October 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28740904/disparities-in-staging-prostate-magnetic-resonance-imaging-utilization-for-nonmetastatic-prostate-cancer-patients-undergoing-definitive-radiation-therapy
#14
Ayobami Ajayi, Wei-Ting Hwang, Neha Vapiwala, Mark Rosen, Christina H Chapman, Stefan Both, Meera Shah, Xingmei Wang, Atu Agawu, Peter Gabriel, John Christodouleas, Zelig Tochner, Curtiland Deville
PURPOSE: There is growing evidence supporting incorporating multiparametric (mp) magnetic resonance imaging (MRI) scans into risk stratification, active surveillance, and treatment paradigms for prostate cancer. The purpose of our study was to determine whether demographic disparities exist in staging MRI utilization for prostate cancer patients. METHODS AND MATERIALS: An institutional database of 705 nonmetastatic prostate cancer patients treated with radiation therapy from 2005 through 2013 was used to identify patients undergoing versus not undergoing pretreatment diagnostic prostate mpMRI...
October 2016: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28725582/co-registration-of-mri-and-ultrasound-accuracy-of-targeting-based-on-radiology-pathology-correlation
#15
REVIEW
Win Shun Lai, Jessica G Zarzour, Jennifer B Gordetsky, Soroush Rais-Bahrami
We reviewed the role of multiparametric magnetic resonance imaging (MP-MRI) and methods of MRI guided biopsy including in-bore, cognitive fusion, and software-based fusion. MP-MRI has been developed, optimized, and studied as a means of improving prostate cancer detection beyond the standard evaluation that utilizes digital rectal examinations and serum prostate specific antigen (PSA). MP-MRI has been proven to be an excellent diagnostic imaging modality that improves prostate cancer detection and risk stratification by guiding biopsy samples...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28719629/multiparametric-11c-acetate-positron-emission-tomography-magnetic-resonance-imaging-in-the-assessment-and-staging-of-prostate-cancer
#16
Stephan H Polanec, Piotr Andrzejewski, Pascal A T Baltzer, Thomas H Helbich, Alexander Stiglbauer, Dietmar Georg, Georgios Karanikas, Martin Susani, Wolfgang Wadsak, Markus Margreiter, Markus Mitterhauser, Peter Brader, Katja Pinker
BACKGROUND: The aim of this study was to evaluate whether MP [11C]Acetate PET-MRI enables an accurate differentiation of benign and malignant prostate tumors as well as local and distant staging. MATERIALS AND METHODS: Fifty-six consecutive patients fulfilling the following criteria were included in this IRB-approved prospective study: elevated PSA levels or suspicious findings at digital rectal examination or TRUS; and histopathological verification. All patients underwent MP [11C]Acetate PET-MRI of the prostate performed on separate scanners with PET/CT using [11C]Acetate and 3T MP MR imaging...
2017: PloS One
https://www.readbyqxmd.com/read/28687912/hyoscine-butylbromide-significantly-decreases-motion-artefacts-and-allows-better-delineation-of-anatomic-structures-in-mp-mri-of-the-prostate
#17
T Ullrich, M Quentin, A K Schmaltz, C Arsov, C Rubbert, D Blondin, R Rabenalt, P Albers, G Antoch, L Schimmöller
OBJECTIVES: To prospectively evaluate the effect of hyoscine butylbromide (HBB) on visualisation of anatomical details and motion-related artefacts in mp-MRI of the prostate at 3.0 Tesla. METHODS: One hundred and three consecutive patients (65 ± 10 years) were included in this trial, powered to demonstrate an improvement of image quality after HBB administration, assessed on a 5-point scale by two blinded readers. All patients received high-spatial resolution axial T2-weighted TSE sequences at 3...
July 7, 2017: European Radiology
https://www.readbyqxmd.com/read/28687911/incremental-diagnostic-value-of-targeted-biopsy-using-mpmri-trus-fusion-versus-14-fragments-prostatic-biopsy-a-prospective-controlled-study
#18
Guilherme C Mariotti, Priscila M Falsarella, Rodrigo G Garcia, Marcos R G Queiroz, Gustavo C Lemos, Ronaldo H Baroni
OBJECTIVES: To compare the incremental diagnostic value of targeted biopsy using real-time multiparametric magnetic resonance imaging and transrectal ultrasound (mpMRI-TRUS) fusion to conventional 14-cores biopsy. PATIENTS AND METHODS: Uni-institutional, institutional review board (IRB) approved prospective blinded study comparing TRUS-guided random and targeted biopsy using mpMRI-TRUS fusion, in 100 consecutive men. We included men with clinical-laboratorial suspicious for prostate cancer and Likert score ≥ 3 mp-MRI...
July 7, 2017: European Radiology
https://www.readbyqxmd.com/read/28677001/incidental-findings-on-multiparametric-mri-performed-for-evaluation-of-prostate-cancer
#19
Rachael L Sherrer, Win Shun Lai, John V Thomas, Jeffrey W Nix, Soroush Rais-Bahrami
PURPOSE: Multiparametric magnetic resonance imaging (mp-MRI) and MRI/Ultrasound (US) fusion-guided biopsy are relatively new techniques for improved detection, staging, and active surveillance of prostate cancer (PCa). As with all imaging modalities, MRI reveals incidental findings (IFs) which carry the risk of increased cost, patient anxiety, and iatrogenic morbidity due to workup of IFs. Herein, we report the IFs from 684 MRIs for evaluation of PCa and consider their characteristics and clinical significance...
July 4, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28658871/accuracy-of-diffusion-weighted-images-and-mr-spectroscopy-in-prostate-lesions-our-experience-with-endorectal-coil-on-1-5-t-mri
#20
Devimeenal Jagannathan, Venkatraman Indiran
INTRODUCTION: Prostatic cancer is most commonly seen in individuals greater than 65 years of age. The incidence rates are constantly increasing. AIM: To assess the accuracy of the non-contrast sequences {Diffusion Weighted Imaging (DWI) and Magnetic Resonance Spectroscopy (MRS)} in the multiparametric Magnetic Resonance Imaging (mp-MRI) in identifying and differentiating benign and malignant prostate lesions using endorectal coil on 1.5 T MRI. MATERIALS AND METHODS: Twenty-six patients with clinical indications for prostate lesions were evaluated using endorectal coil on 1...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
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