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Mri and prostate biopsy

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https://www.readbyqxmd.com/read/27921275/preoperative-characteristics-of-the-p-r-o-s-t-a-t-e-scores-a-novel-predictive-tool-for-the-risk-of-positive-surgical-margin-after-radical-prostatectomy
#1
Ben Xu, Cheng Luo, Qian Zhang, Jie Jin
OBJECTIVES: To propose a novel scoring system to predict the risk of positive surgical margin (PSM) after radical prostatectomy (RP) in prostate cancer (PCa) patients. MATERIALS AND METHODS: Eight reproducible variables available from preoperative characteristics of PCa patients were measured: PSA level (P), ratio of positive biopsy needles (R), obesity (O), scores of Gleason (S), T stage by preoperative MRI scan (T), age (A), tumor volume (T) and experience of the surgeon (E)...
December 5, 2016: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/27919668/magnetic-resonance-imaging-provides-added-value-to-the-prostate-cancer-prevention-trial-risk-calculator-for-patients-with-estimated-risk-of-high-grade-prostate-cancer-less-than-or-equal-to-10
#2
Eric H Kim, John K Weaver, Anup S Shetty, Joel M Vetter, Gerald L Andriole, Seth A Strope
OBJECTIVES: To determine the added value of prostate MRI to the Prostate Cancer Prevention Trial risk calculator. METHODS: Between January 2012 and December 2015, 339 patients underwent prostate MRI prior to biopsy at our institution. MRI was considered positive if there was at least one Prostate Imaging Reporting and Data System 4 or 5 MRI suspicious region. Logistic regression was used to develop two models: biopsy outcome as a function of the 1) Prostate Cancer Prevention Trial risk calculator alone, and 2) combined with MRI findings...
December 2, 2016: Urology
https://www.readbyqxmd.com/read/27919653/transperineal-biopsies-of-mri-detected-aggressive-index-lesions-in-low-%C3%A2-and-intermediate-risk-prostate-cancer-patients-implications-for-treatment-decision
#3
A Gomez-Iturriaga, F Casquero, J I Lopez, A Urresola, A Ezquerro, D Buscher, P Bilbao, J Crook
PURPOSE: Multiparametric MRI (mpMRI) has a potential role for the identification of aggressive cancer that can be targeted for biopsy. We report the incidence and severity of discordant information between the pathology found on the transrectal ultrasound (TRUS)-guided biopsy and the mpMRI findings in patients with favorable or intermediate-risk prostate cancer referred for brachytherapy. METHODS AND MATERIALS: From March 2014 to September 2015, 10/44 consecutive patients with low- or intermediate-risk prostate cancer referred for brachytherapy presented an aggressive lesion on mpMRI and underwent an MRI-TRUS fusion-guided transperineal biopsy of the index lesion...
December 2, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27900453/incidence-grade-and-distribution-of-prostate-cancer-following-transperineal-template-guided-mapping-biopsy-in-patients-with-atypical-small-acinar-proliferation
#4
Gregory S Merrick, Robert W Galbreath, Abbey Bennett, Wayne M Butler, Edward Amamovich
PURPOSE: To evaluate the role of transperineal template-guided mapping biopsy (TTMB) in patients with atypical small acinar proliferation (ASAP) diagnosed via transrectal ultrasound-guided needle biopsy (TRUS). METHODS: In total, 132 consecutive patients with TRUS-diagnosed ASAP underwent TTMB by means of an anatomic-based technique with sampling of 24 biopsy regions. For each of the 24 regions, 1-3 biopsy cores were obtained (depending on prostate size). No patient underwent pre-biopsy MRI imaging...
November 29, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27900214/are-magnetic-resonance-imaging-undetectable-prostate-tumours-clinically-significant-results-of-histopathological-analyses
#5
Kristian D Stensland, Karl Coutinho, Adele R Hobbs, Lindsay Haines, Shemille A Collingwood, Young Suk Kwon, Simon J Hall, Maria Katsigeorgis, Seyed Behzad Jazayeri, David B Samadi
OBJECTIVE: To investigate whether tumours at threshold values for detection on magnetic resonance imaging (MRI) represent clinically significant tumours or not, and therefore the utility of MRI in active surveillance (AS) protocols. PATIENTS AND METHODS: A retrospective analysis of a single institution database was performed after Institutional Review Board approval. Between 2010 and 2013, 1633 patients underwent robot-assisted laparoscopic prostatectomy (RALP) at a single institution by a single surgeon...
December 2016: Arab Journal of Urology
https://www.readbyqxmd.com/read/27882770/focal-therapy-as-primary-treatment-for-localized-prostate-cancer-definition-needs-and-future
#6
Adil Ouzzane, Nacim Betrouni, Massimo Valerio, Ardeshir Rastinehad, Pierre Colin, Guillaume Ploussard
Focal therapy (FT) may offer a promising treatment option in the field of low to intermediate risk localized prostate cancer. The aim of this concept is to combine minimal morbidity with cancer control as well as maintain the possibility of retreatment. Recent advances in MRI and targeted biopsy has improved the diagnostic pathway of prostate cancer and increased the interest in FT. However, before implementation of FT in routine clinical practice, several challenges are still to overcome including patient selection, treatment planning, post-therapy monitoring and definition of oncologic outcome surrogates...
November 24, 2016: Future Oncology
https://www.readbyqxmd.com/read/27882057/robotic-assisted-laparoscopic-prostatectomy-performed-after-previous-suprapubic-prostatectomy
#7
Johnson F Tsui, Michael Feuerstein, Seyed Behzad Jazayeri, David B Samadi
Operative management of prostate cancer in a patient who has undergone previous open suprapubic simple prostatectomy poses a unique surgical challenge. Herein, we describe a case of intermediate risk prostate cancer in a man who had undergone simple prostatectomy ten years prior to presentation. The patient was found to have Gleason 7 prostate cancer on MRI fusion biopsy of the prostate for elevated PSA and underwent an uncomplicated robot assisted laparoscopic radical prostatectomy.
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27879490/intense-uptake-in-amyloidosis-of-the-seminal-vesicles-on-68ga-psma-pet-mimicking-locally-advanced-prostate-cancer
#8
Maximilian Stephens, David Insoo Kim, Benjamin Shepherd, Sonja Gustafson, Paul Thomas
We report a case of benign senile seminal vesicle amyloidosis demonstrating intense Ga-prostate-specific membrane antigen (PSMA) uptake on PET/CT. A 68-year-old man underwent staging PSMA PET/CT and MRI for biopsy-proven prostate adenocarcinoma. There was an intense focus of Ga-PSMA uptake in the primary malignancy, as well as symmetrical intense uptake in the seminal vesicles bilaterally that was reported as multifocal disease with local invasion. Final histology after radical prostatectomy showed amyloidosis of the seminal vesicles without any evidence of prostate cancer...
November 22, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27879488/18f-naf-pet-demonstrating-unusual-focal-tracer-activity-in-the-brain
#9
Anuradha Thenkondar, Lida Jafari, Robbie Sooriash, Fereshteh Hajsadeghi, Gholam R Berenji, Yuxin Li
A 60-year-old man with enlarged prostate, hypertension, and diabetes was referred for F-NaF PET/CT to evaluate possible metastatic lesions. The patient appeared asymptomatic on the day of the study, without any signs indicating stroke. Patient also had no known history of malignancy or cerebrovascular disease. He had mild elevation of the prostate-specific antigen level, and biopsy of his prostate was not performed. Patient had long-standing history of chronic back pain and abdominal pain. The PET bone scan demonstrated a large area of very intense tracer uptake in the brain...
November 22, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27871928/the-effect-of-dutasteride-on-mri-defined-prostate-cancer-lesions-mapped-magnetic-resonance-imaging-in-primary-prostate-cancer-after-exposure-to-dutasteride-a-randomized-placebo-controlled-double-blind-clinical-trial
#10
Caroline M Moore, Nicola L Robertson, Fatima Jichi, Adebiyi Damola, Gareth Ambler, Francesco Giganti, Ashley J Ridout, Simon Rj Bott, Mathias Winkler, Hashim U Ahmed, Manit Arya, Anita V Mitra, Neil McCartan, Alex Freeman, Charles Jameson, Ramiro Castro, Giulio Gambarota, Brandon J Whitcher, Clare Allen, Alex Kirkham, Mark Emberton
PURPOSE: Dutasteride is licensed for symptomatic benign prostatic hyperplasia, and has been associated with a lower progression rate in low-risk prostate cancer. We have evaluated the effect of dutasteride on prostate cancer volume as assessed by T2-weighted Magnetic Resonance Imaging (MRI). MATERIALS AND METHODS: In this randomized, double-blind, placebo-controlled trial, men with biopsy-proven low-intermediate risk prostate cancer (up to Gleason 3+4 and PSA up to 15 ng/ml) who had an MR visible lesion of >/= 0...
November 18, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27871829/the-role-of-ipsilateral-and-contralateral-trus-guided-systematic-prostate-biopsy-in-men-with-unilateral-mri-lesion-undergoing-mri-us-fusion-targeted-prostate-biopsy
#11
Darren J Bryk, Elton Llukani, Samir S Taneja, Andrew B Rosenkrantz, William C Huang, Herbert Lepor
OBJECTIVE: To determine how ipsilateral (ipsi) and contralateral (contra) systematic biopsies (SB) impacts detection of clinically significant versus insignificant prostate cancer (PCa) in men with unilateral MRI lesion undergoing MRI fusion target biopsy (MRF-TB). MATERIALS AND METHODS: 211 cases with one unilateral MRI lesion were subjected to SB and MRF-TB. Biopsy tissue cores from the MRF-TB, ipsi-SB and contra-SB were analyzed separately. RESULTS: A direct relationship was observed between MRI suspicious score (SS) and detection of any cancer, Gleason 6 PCa and Gleason > 6 PCa...
November 18, 2016: Urology
https://www.readbyqxmd.com/read/27864107/should-hypoechoic-lesions-on-trus-be-sampled-during-mri-targeted-prostate-biopsy
#12
Nabeel A Shakir, M Minhaj Siddiqui, Arvin K George, Michael Kongnyuy, Richard Ho, Michele Fascelli, Maria J Merino, Baris Turkbey, Peter L Choyke, Bradford J Wood, Peter A Pinto
OBJECTIVES: To determine whether supplemental biopsy of hypoechoic ultrasound lesions (HUL) incidentally found during MRI-transrectal ultrasound (TRUS) fusion-targeted prostate biopsy results in improved prostate cancer (PCa) detection. METHODS: Patients underwent MRI-TRUS targeted biopsy as part of an ongoing prospective trial from August 2007 to February 2015. For men with HUL, the biopsy pathology of HUL and MRI lesions was classified according to the updated 2014 International Society of Urological Pathology (ISUP) grading system...
November 15, 2016: Urology
https://www.readbyqxmd.com/read/27862869/multicentre-evaluation-of-target-and-systematic-biopsies-using-magnetic-resonance-and-ultrasound-image-fusion-guided-transperineal-prostate-biopsy-in-patients-with-a-previous-negative-biopsy
#13
N L Hansen, C Kesch, T Barrett, B Koo, J P Radtke, D Bonekamp, H P Schlemmer, A Y Warren, K Wieczorek, M Hohenfellner, C Kastner, B Hadaschik
OBJECTIVES: To evaluate the detection rates of targeted and systematic biopsies in magnetic resonance (MRI) and transrectal ultrasound (US) image-fusion transperineal prostate biopsy for patients with previous benign transrectal US guided biopsies in two high-volume centres. PATIENTS AND METHODS: Two centre, prospective outcome study of 487 patients with previous benign biopsies that underwent transperineal MRI/US fusion-guided target and systematic saturation biopsy from 2012 to 2015...
November 10, 2016: BJU International
https://www.readbyqxmd.com/read/27858090/dramatic-increase-in-the-utilization-of-multiparametric-magnetic-resonance-imaging-for-detection-and-management-of-prostate-cancer
#14
Daniel T Oberlin, David D Casalino, Frank H Miller, Joshua J Meeks
PURPOSE: Multiparametric MRI (mpMRI) of the prostate is an evolving technology that provides functional information of the prostate that helps distinguish benign from malignant lesions. We hypothesized that mpMRI is rapidly adopted in the US to fill the unmet need for a non-invasive, accurate screening tool. The aim of this study is to assess the increasing utilization of mpMRI for the diagnosis and management of prostate cancer. METHODS: We conducted a retrospective review of an institutional clinical data repository of four million patients...
November 17, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27856204/are-dynamic-contrast-enhanced-images-necessary-for-prostate-cancer-detection-on-multiparametric-magnetic-resonance-imaging
#15
Thaís Caldara Mussi, Tatiana Martins, Rodrigo Gobbo Garcia, Renee Zon Filippi, Gustavo Caserta Lemos, Ronaldo Hueb Baroni
BACKGROUND: To compare the results of magnetic resonance imaging (MRI) with and without contrast-enhanced sequences for the detection of clinically significant prostate cancer. The value of contrast in the MRI protocol for the detection of prostate tumors has been discussed in previous studies. MATERIALS AND METHODS: We performed an institutional review board-approved, retrospective study of patients who had undergone prostate MRI followed by fusion biopsy during a 16-month period...
October 18, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/27847972/first-report-of-robot-assisted-transperineal-fusion-versus-off-target-biopsy-in-patients-undergoing-repeat-prostate-biopsy
#16
S Kaufmann, J Mischinger, B Amend, S Rausch, M Adam, M Scharpf, F Fend, U Kramer, M Notohamiprodjo, K Nikolaou, A Stenzl, J Bedke, S Kruck
PURPOSE: To clarify the value of targeted versus off-target biopsies in men with a suspicion of prostate cancer (PC) and a visible lesion in multi-parametric magnetic resonance imaging (mpMRI) using transperineal robot-assisted biopsy. METHODS: Fifty-five consecutive men with one non-palpable suspicious lesion in mpMRI after negative 12-core transrectal ultrasound-guided biopsy were enrolled in 2014-2015. Lesions were scored using the Prostate Imaging Reporting and Data System...
November 15, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27845218/determination-of-the-role-of-negative-magnetic-resonance-imaging-of-the-prostate-in-clinical-practice-is-biopsy-is-still-necessary
#17
Robert S Wang, Eric H Kim, Joel M Vetter, Kathryn J Fowler, Anup S Shetty, Aaron J Mintz, Niraj G Badhiwala, Robert L Grubb, Gerald L Andriole
OBJECTIVES: To assess the negative predictive value (NPV) of multi-parametric MRI (mpMRI) for detection of prostate cancer (PCa) in routine clinical practice, and to identify characteristics of patients for whom mpMRI fails to detect high-grade (Gleason ≥7) disease. METHODS: We reviewed our prospectively maintained database of consecutive men who received prostate mpMRI at our institution, interpreted by a clinical practice of academic radiologists. Between January 2012 and December 2015, 84 men without any MR suspicious regions (MSRs) according to prior institutional classification, or with PI-RADS 1-2 lesions according to the PI-RADS system, underwent standard template transrectal ultrasound-guided (TRUS) prostate biopsy...
November 11, 2016: Urology
https://www.readbyqxmd.com/read/27844131/-mri-trus-fusion-guided-prostate-biopsy-value-in-the-context-of-focal-therapy
#18
T Franz, J von Hardenberg, A Blana, H Cash, D Baumunk, G Salomon, B Hadaschik, T Henkel, J Herrmann, F Kahmann, K-U Köhrmann, J Köllermann, S Kruck, U-B Liehr, S Machtens, I Peters, J P Radtke, A Roosen, H-P Schlemmer, L Sentker, J J Wendler, U Witzsch, J-U Stolzenburg, M Schostak, R Ganzer
BACKGROUND: Several systems for MRI/TRUS fusion-guided biopsy of the prostate are commercially available. Many studies have shown superiority of fusion systems for tumor detection and diagnostic quality compared to random biopsy. The benefit of fusion systems in focal therapy of prostate cancer (PC) is less clear. OBJECTIVES: Critical considerations of fusion systems for planning and monitoring of focal therapy of PC were investigated. MATERIALS AND METHODS: A systematic literature review of available fusion systems for the period 2013-5/2016 was performed...
November 14, 2016: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/27842676/biparametric-3t-magentic-resonance-imaging-for-prostatic-cancer-detection-in-a-biopsy-na%C3%A3-ve-patient-population-a-further-improvement-of-pi-rads-v2
#19
Arnaldo Stanzione, Massimo Imbriaco, Sirio Cocozza, Ferdinando Fusco, Giovanni Rusconi, Carmela Nappi, Vincenzo Mirone, Francesco Mangiapia, Arturo Brunetti, Alfonso Ragozzino, Nicola Longo
OBJECTIVES: To prospectively determine the diagnostic accuracy of a biparametric 3T magnetic resonance imaging protocol (BP-MRI) for prostatic cancer detection, compared to a multiparametric MRI protocol (MP-MRI), in a biopsy naïve patient population. METHODS: Eighty-two untreated patients (mean age 65±7.6years) with clinical suspicion of prostate cancer and/or altered prostate-specific antigen (PSA) levels underwent a MP-MRI, including T2-weighted imaging, diffusion-weighted imaging (with the correspondent apparent diffusion coefficient maps) and dynamic contrast enhanced sequence, followed by prostate biopsy...
December 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/27842672/can-multiparametric-mri-replace-roach-equations-in-staging-prostate-cancer-before-external-beam-radiation-therapy
#20
Rossano Girometti, Marco Andrea Signor, Martina Pancot, Lorenzo Cereser, Chiara Zuiani
PURPOSE: To investigate the agreement between Roach equations (RE) and multiparametric magnetic resonance imaging (mpMRI) in assessing the T-stage of prostate cancer (PCa). MATERIALS AND METHODS: Seventy-three patients with biopsy-proven PCa and previous RE assessment prospectively underwent mpMRI on a 3.0T magnet before external beam radiation therapy (EBRT). Using Cohen's kappa statistic, we assessed the agreement between RE and mpMRI in defining the T-stage (≥T3 vs...
December 2016: European Journal of Radiology
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