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https://www.readbyqxmd.com/read/29679618/is-it-time-to-perform-only-mri-targeted-cores-our-experience-in-1032-men-submitted-to-prostate-biopsy
#1
Pietro Pepe, Antonio Garufi, Gian Domenico Priolo, Antonio Galia, Filippo Fraggetta, Michele Pennisi
PURPOSE: Diagnostic accuracy of mpMRI (multiparametric magnetic resonance imaging) in the diagnosis of clinically significant prostate cancer (csPCa) has been evaluated and compared with transperineal saturation prostate biopsy (SPBx). MATERIALS AND METHODS: From January 2011 to Febraury 2018 1032 men (median age 63 years) with median PSA of 8.6 ng/ml underwent repeat SPBx (reference test) for the suspicion of cancer. All the patients underwent 3.0 Tesla pelvic mpMRI before SPBx and the lesions with PI-RADS (Prostate Imaging-Reporting and Data System) score ≥ 3 were submitted to additional targeted fusion prostate biopsy (TPBx)...
April 18, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29679601/adoption-of-pre-biopsy-magnetic-resonance-imaging-for-men-undergoing-prostate-biopsy-in-the-united-states
#2
Wen Liu, Dattatraya Patil, David H Howard, Renee Moore, Heqiong Wang, Martin G Sanda, Christopher P Filson
OBJECTIVES: To assess adoption of pre-biopsy prostate MRI in the United States and evaluate factors associated with MRI-Bx use. Prior reports have shown improved cancer detection with magnetic resonance image-guided prostate biopsies (MRI-Bx) vs. transrectal ultrasound-guided methods (TRUS-Bx). Population-based trends of their use and outcomes have not been previously characterized. METHODS: Using private insurance claims (2009-2015), we identified men who underwent prostate biopsy...
April 18, 2018: Urology
https://www.readbyqxmd.com/read/29679430/is-mri-targeted-biopsy-a-useful-addition-to-systematic-confirmatory-biopsy-in-men-on-active-surveillance-for-low-risk-prostate-cancer-a-systematic-review-and-meta-analysis
#3
Ivo G Schoots, Daan Nieboer, Francesco Giganti, Caroline M Moore, Chris H Bangma, Monique J Roobol
BACKGROUND: Active surveillance of prostate cancer is recommended for men with Gleason 3+3 on standard TRUS-guided biopsy. Confirmatory assessment can include repeat standard TRUS-guided biopsy, and/or MRI with targeted biopsy when indicated. OBJECTIVE: To systematically review and meta-analyse evidence regarding the additional value of MRI and MRI-targeted biopsies to confirmatory systematic biopsies in identifying high-grade prostate cancer in men with low-risk disease on TRUS biopsy...
April 21, 2018: BJU International
https://www.readbyqxmd.com/read/29678542/effect-of-intravascular-contrast-agent-on-diffusion-and-perfusion-fraction-coefficients-in-the-peripheral-zone-and-prostate-cancer
#4
Yousef Mazaheri, Andreas M Hötker, Amita Shukla-Dave, Oguz Akin, Hedvig Hricak
PURPOSE: To determine whether water diffusion and the perfusion fraction coefficients in prostate peripheral zone (PZ) and prostate cancer (PCa) are affected by intravenous contrast injection and explore the potential mechanism behind previously reported differences between pre- and post-contrast ADC values. METHODS: Our institutional review board waived informed consent for this HIPAA-compliant, retrospective study, which included 32 patients (median age, 63 years; range, 47-77 years) with biopsy-proven, untreated PCa who underwent 3-Tesla MRI, including DW-MRI at b-values 0, 400, 700, 1000 s/mm2 before and after gadolinium injection...
April 17, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29678540/quantitative-diffusion-mri-using-reduced-field-of-view-and-multi-shot-acquisition-techniques-validation-in-phantoms-and-prostate-imaging
#5
Yuxin Zhang, James Holmes, Iñaki Rabanillo, Arnaud Guidon, Shane Wells, Diego Hernando
PURPOSE: To evaluate the reproducibility of quantitative diffusion measurements obtained with reduced Field of View (rFOV) and Multi-shot EPI (msEPI) acquisitions, using single-shot EPI (ssEPI) as a reference. METHODS: Diffusion phantom experiments, and prostate diffusion-weighted imaging in healthy volunteers and patients with known or suspected prostate cancer were performed across the three different sequences. Quantitative diffusion measurements of apparent diffusion coefficient, and diffusion kurtosis parameters (healthy volunteers), were obtained and compared across diffusion sequences (rFOV, msEPI, and ssEPI)...
April 17, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29678527/the-effect-of-neoadjuvant-androgen-deprivation-therapy-on-tumor-hypoxia-in-high-grade-prostate-cancer-an-18-f-miso-pet-mri-study
#6
Ismini C Mainta, Thomas Zilli, Jean-Christophe Tille, Thomas De Perrot, Jean-Paul Vallée, Franz Buchegger, Valentina Garibotto, Raymond Miralbell
PURPOSE: Tumor hypoxia is associated with radioresistance and poor prognosis after radiation therapy for prostate cancer (PCa). In this prospective pilot study, we assessed the ability of 18 F-misonidazole (18 F-MISO) positron emission tomography (PET)-magnetic resonance imaging (MRI) to detect hypoxia in high-grade PCa patients who were candidates for curative radiation therapy, and we evaluated 18 F-MISO PET-MRI modulation after 3 months of neoadjuvant androgen deprivation therapy (nADT)...
March 8, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29677864/re-role-of-mri-in-the-use-of-an-absorbable-hydrogel-spacer-in-men-undergoing-radiation-therapy-for-prostate-cancer-what-the-radiologist-needs-to-know
#7
https://www.readbyqxmd.com/read/29676063/development-and-internal-validation-of-a-side-specific-multiparametric-mri-based-nomogram-for-the-prediction-of-extracapsular-extension-of-prostate-cancer
#8
Alberto Martini, Akriti Gupta, Sara C Lewis, Shivaram Cumarasamy, Kenneth G Haines, Alberto Briganti, Francesco Montorsi, Ash K Tewari
OBJECTIVES: To develop a nomogram for predicting side-specific extracapsular extension (ECE) for planning nerve sparing radical prostatectomy (NSRP). MATERIALS AND METHODS: We retrospectively analyzed data from 561 patients who underwent robot-assisted radical prostatectomy between February 2014 and October 2015. To develop a side-specific predictive model, we considered the prostatic lobes separately. Four variables were included: PSA, highest ipsilateral biopsy Gleason grade, highest ipsilateral percentage core involvement and ECE on multiparametric MRI (mpMRI)...
April 19, 2018: BJU International
https://www.readbyqxmd.com/read/29664244/the-role-of-68ga-psma-pet-ct-scan-in-biochemical-recurrence-after-primary-treatment-for-prostate-cancer-a-systematic-review-of-literature
#9
Ahmed Eissa, Ahmed El Sherbiny, Rafael F Coelho, Jens Rassweiler, John W Davis, Francesco Porpiglia, Vipul R Patel, Napoleone Prandini, Salvatore Micali, Maria C Sighinolfi, Stefano Puliatti, Bernardo Rocco, Giampaolo Bianchi
INTRODUCTION: Recurrence after primary treatment of prostate cancer is one of the major challenges facing urologists. Biochemical recurrence is not rare and occurs in up to one third of the patients undergoing radical prostatectomy. Management of biochemical recurrence is tailored according to the site and the burden of recurrence. Therefore, developing an imaging technique to early detect recurrent lesions represents an urgent need. Positron emission tomography (PET) of 68Ga-labelled prostate-specific membrane antigen (68Ga-PSMA) is an emerging imaging modality that seems to be a promising tool with capability to localize recurrent prostate cancer...
April 17, 2018: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/29664243/new-technologies-and-techniques-for-prostate-cancer-focal-therapy-a-review-of-the-current-literature
#10
Estefanía Linares-Espinós, Arie Carneiro, Juan I Martínez-Salamanca, Fernando Bianco, Adalberto Castro-Alfaro, Xavier Cathelineau, Massimo Valerio, Rafael Sanchez-Salas
BACKGROUND: The aim of this study was to review the oncological and functional outcomes of new and established primary focal treatments (FT) for localized prostate cancer (PCa). METHODS: We performed a systematic search of published studies on FT for localized PCa using electronic databases (Medline and Embase). These studies included reports on hemiablation, focal ablation and target-ablation. We excluded salvage focal therapy studies and limited the search to those with a minimum of 12 months of follow-up...
April 16, 2018: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/29663843/persistent-hematospermia-seminal-vesicle-bleed
#11
Yih Chyn Phan, Wasim Mahmalji
A 65-year-old gentleman, with no past medical problems and not on any anticoagulation was seen in the urology clinic with persistent hematospermia for the last few years. A thorough history and examination including a digital examination of the prostate was unremarkable. Bleeding from his female partner was also ruled out. Investigations such as prostate specific antigen (PSA) blood test, urine culture, semen culture, and flexible cystoscopy were performed, and these investigations were also within normal limits...
April 17, 2018: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/29663686/-68-ga-psma-pet-ct-staging-prior-to-definitive-radiation-treatment-for-prostate-cancer
#12
George Hruby, Thomas Eade, Louise Emmett, Bao Ho, Ed Hsiao, Geoff Schembri, Linxin Guo, Carolyn Kwong, Julia Hunter, Keelan Byrne, Andrew Kneebone
AIM: To explore the utility of prostate specific membrane antigen (PSMA)-positron emission tomography (PET)/computed tomography (CT) in addition to conventional imaging prior to definitive external beam radiation treatment (EBRT) for prostate cancer. METHODS: All men undergoing PSMA-PET/CT prior to definitive EBRT for intermediate and high-risk prostate cancer were included in our ethics approved prospective database. For each patient, clinical and pathological results, in addition to scan results including site of PSMA positive disease and number of lesions, were recorded...
April 16, 2018: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29662622/quantitative-parameters-in-dynamic-contrast-enhanced-magnetic-resonance-imaging-for-the-detection-and-characterization-of-prostate-cancer
#13
Cheng Wei, Bowen Jin, Magdalena Szewczyk-Bieda, Stephen Gandy, Stephen Lang, Yilong Zhang, Zhihong Huang, Ghulam Nabi
Objectives: to assess the diagnostic accuracy of quantitative parameters of DCE-MRI in multi-parametric MRI (mpMRI) in comparison to the histopathology (including Gleason grade) of prostate cancer. Patients and methods: 150 men with suspected prostate cancer (abnormal digital rectum examination and or elevated prostate-specific antigen) received pre-biopsy 3T mpMRI and were recruited into peer-reviewed, protocol-based prospective study. The DCE-MRI quantitative parameters ( Ktrans (influx transfer constant) and kep (efflux rate constant)) of the cancerous and normal areas were recorded using four different kinetic models employing Olea Sphere (Olea Medical, La Ciotat, France)...
March 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29660918/contrast-enhanced-ultrasound-ceus-with-mri-image-fusion-for-monitoring-focal-therapy-of-prostate-cancer-with-high-intensity-focused-ultrasound-hifu-1
#14
M Apfelbeck, D-A Clevert, J Ricke, C Stief, B Schlenker
INTRODUCTION: Reduced acceptance of radical prostatectomy in patients with low risk or intermediate risk prostate cancer has significantly changed treatment strategies in prostate cancer (PCa) during the last years. Focal therapy of the prostate with high intensity focused ultrasound (HIFU) is an organ-preserving treatment for prostate cancer with less impairment of health-related quality of life. Follow-up after HIFU therapy by imaging modalities remains a major problem as eg. MRI performs poorly...
April 7, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29659067/computer-aided-diagnosis-of-prostate-cancer-using-a-deep-convolutional-neural-network-from-multiparametric-mri
#15
Yang Song, Yu-Dong Zhang, Xu Yan, Hui Liu, Minxiong Zhou, Bingwen Hu, Guang Yang
BACKGROUND: Deep learning is the most promising methodology for automatic computer-aided diagnosis of prostate cancer (PCa) with multiparametric MRI (mp-MRI). PURPOSE: To develop an automatic approach based on deep convolutional neural network (DCNN) to classify PCa and noncancerous tissues (NC) with mp-MRI. STUDY TYPE: Retrospective. SUBJECTS: In all, 195 patients with localized PCa were collected from a PROSTATEx database...
April 16, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29653121/integration-and-diagnostic-accuracy-of-3t-non-endorectal-coil-prostate-mri-in-the-context-of-active-surveillance
#16
Nicole E Curci, Brian R Lane, Prasad R Shankar, Sabrina L Noyes, Andrew K Moriarty, Anthony Kubat, Chris Brede, Jeffrey S Montgomery, Gregory B Auffenberg, David C Miller, James E Montie, Arvin K George, Matthew S Davenport
OBJECTIVE: To evaluate the integration of 3T non-endorectal-coil multiparametric prostate MRI (mpMRI) at two high-volume practices that routinely use mpMRI in the setting of active surveillance. MATERIALS AND METHODS: This was an IRB-approved, HIPAA-compliant, dual-institution retrospective cohort study. Subjects undergoing 3T mpMRI without endorectal coil at either study institution over a 13-month period (8/1/2015-8/31/2016) were selected based on pre-defined criteria: clinical T1/T2 Gleason 6 prostate cancer, PSA<15 ng/mL, ≥40 years-old, mpMRI within 2 years of prostate biopsy, PI-RADS v2 score assigned...
April 10, 2018: Urology
https://www.readbyqxmd.com/read/29651763/computer-aided-diagnosis-prior-to-conventional-interpretation-of-prostate-mpmri-an-international-multi-reader-study
#17
Matthew D Greer, Nathan Lay, Joanna H Shih, Tristan Barrett, Leonardo Kayat Bittencourt, Samuel Borofsky, Ismail Kabakus, Yan Mee Law, Jamie Marko, Haytham Shebel, Francesca V Mertan, Maria J Merino, Bradford J Wood, Peter A Pinto, Ronald M Summers, Peter L Choyke, Baris Turkbey
OBJECTIVES: To evaluate if computer-aided diagnosis (CAD) prior to prostate multi-parametric MRI (mpMRI) can improve sensitivity and agreement between radiologists. METHODS: Nine radiologists (three each high, intermediate, low experience) from eight institutions participated. A total of 163 patients with 3-T mpMRI from 4/2012 to 6/2015 were included: 110 cancer patients with prostatectomy after mpMRI, 53 patients with no lesions on mpMRI and negative TRUS-guided biopsy...
April 12, 2018: European Radiology
https://www.readbyqxmd.com/read/29650029/the-dose-distribution-in-dominant-intraprostatic-tumour-lesions-defined-by-multiparametric-mri-and-psma-pet-ct-correlates-with-the-outcome-in-patients-treated-with-primary-radiation-therapy-for-prostate-cancer
#18
Constantinos Zamboglou, Christina Marie Klein, Benedikt Thomann, Thomas Franz Fassbender, Hans C Rischke, Simon Kirste, Karl Henne, Natalja Volegova-Neher, Michael Bock, Mathias Langer, Philipp T Meyer, Dimos Baltas, Anca L Grosu
No abstract text is available yet for this article.
April 12, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29649574/detection-of-high-gs-risk-group-prostate-tumors-by-diffusion-tensor-imaging-and-logistic-regression-modelling
#19
Gokhan Ertas
PURPOSE: To assess the value of joint evaluation of diffusion tensor imaging (DTI) measures by using logistic regression modelling to detect high GS risk group prostate tumors. MATERIALS AND METHODS: Fifty tumors imaged using DTI on a 3 T MRI device were analyzed. Regions of interests focusing on the center of tumor foci and noncancerous tissue on the maps of mean diffusivity (MD) and fractional anisotropy (FA) were used to extract the minimum, the maximum and the mean measures...
April 9, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29645347/does-the-introduction-of-prostate-multiparametric-mri-into-active-surveillance-of-localised-prostate-cancer-improve-patient-re-classification
#20
R J Bryant, B Yang, Y Philippou, K Lam, M Obiakor, J Ayers, V Chiocchia, F Gleeson, R MacPherson, C Verrill, P Sooriakumaran, F C Hamdy, S F Brewster
OBJECTIVES: To determine whether replacement of protocol-driven repeat prostate biopsy (PB) with multiparametric magnetic resonance imaging (mpMRI) +/- targeted repeat prostate biopsy (TB) in evaluating men on active surveillance (AS) for low-volume low- to intermediate-risk prostate cancer (PCa) altered the likelihood or time to treatment, or reduced the number of repeat biopsies required to trigger treatment. PATIENTS AND METHODS: 445 patients underwent AS from 2010-2016 at our institution with median follow-up of 2...
April 12, 2018: BJU International
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