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Prostate cancer and ultrasound

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https://www.readbyqxmd.com/read/28935163/optimising-the-diagnosis-of-prostate-cancer-in-the-era-of-multiparametric-magnetic-resonance-imaging-a-cost-effectiveness-analysis-based-on-the-prostate-mr-imaging-study-promis
#1
Rita Faria, Marta O Soares, Eldon Spackman, Hashim U Ahmed, Louise C Brown, Richard Kaplan, Mark Emberton, Mark J Sculpher
BACKGROUND: The current recommendation of using transrectal ultrasound-guided biopsy (TRUSB) to diagnose prostate cancer misses clinically significant (CS) cancers. More sensitive biopsies (eg, template prostate mapping biopsy [TPMB]) are too resource intensive for routine use, and there is little evidence on multiparametric magnetic resonance imaging (MPMRI). OBJECTIVE: To identify the most effective and cost-effective way of using these tests to detect CS prostate cancer...
September 18, 2017: European Urology
https://www.readbyqxmd.com/read/28934811/current-utilization-and-acceptance-of-multiparametric-mri-in-the-diagnosis-of-prostate-cancer-a-regional-survey
#2
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/28933973/magnetic-resonance-imaging-in-the-early-detection-of-prostate-cancer-and-review-of-the-literature-on-magnetic-resonance-imaging-stratified-clinical-pathways
#3
Taimur Tariq Shah, Wilson King Lim To, Hashim Uddin Ahmed
With level 1 evidence now available on the diagnostic accuracy of multiparametric magnetic resonance imaging (MRI) we must now utilise this data in developing an MRI-stratified diagnostic pathway for the early detection of prostate cancer. Areas covered: A literature review was conducted and identified seven randomised control trials (RCT's) assessing the diagnostic accuracy of such a pathway against the previously accepted systematic/random trans-rectal ultrasound guided (TRUS) biopsy pathway. The studies were heterogeneous in their design...
September 21, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28927782/development-and-internal-validation-of-prediction-models-for-biochemical-failure-and-composite-failure-after-focal-salvage-high-intensity-focused-ultrasound-for-local-radiorecurrent-prostate-cancer-presentation-of-risk-scores-for-individual-patient-prognoses
#4
Max Peters, Abi Kanthabalan, Taimur T Shah, Neil McCartan, Caroline M Moore, Manit Arya, Jochem R van der Voort van Zyp, Marinus A Moerland, Richard G Hindley, Mark Emberton, Hashim U Ahmed
PURPOSE: Patient selection for focal salvage remains difficult. Therefore, we developed and internally validated prediction models for biochemical failure (BF) and a composite endpoint (CE) following focal salvage high intensity focused ultrasound (HIFU) for radiorecurrent prostate cancer. MATERIALS AND METHODS: A prospective HIFU registry identified 150 cases (November 2006-August 2015). Recurrence was assessed with multiparametric magnetic resonance imaging (MRI) combined with template prostate mapping biopsies, targeted biopsies, or systematic transrectal ultrasound-guided biopsies...
September 15, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28924476/clinical-validation-of-real-time-tissue-change-monitoring-during-prostate-tissue-ablation-with-high-intensity-focused-ultrasound
#5
Narendra T Sanghvi, Wo-Hsing Chen, Roy Carlson, Clint Weis, Ralf Seip, Toyoaki Uchida, Michael Marberger
BACKGROUND: The purpose of these clinical studies was to validate a Tissue Change Monitoring (TCM) algorithm in vivo. TCM is a quantitative tool for the real-time assessment of HIFU dose. TCM provides quantitative analysis of the backscatter pulse echo signals (pre and immediately post HIFU) for each individual ablative site, using ultrasonic tissue characterization as a surrogate for monitoring tissue temperature. Real-time analysis generates an energy difference parameter (ΔE in dB) that is proportional to tissue temperature...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28924309/serum-psa-levels-in-the-indian-population-is-it-different
#6
Amit Agrawal, Shailesh Chandra Karan
BACKGROUND: Serum prostate-specific antigen (PSA) is an important tumour, marker which is widely used to trigger trans-rectal ultrasound (TRUS)-guided prostate biopsy. However, the PSA levels vary with race and ethnicity. Therefore, there is a need to have an Indian reference range. METHODS: All adult male patients meeting the inclusion and exclusion criteria were enrolled in this study. They were subjected to assessment of serum total PSA, digital rectal examination and trans-abdominal ultrasound...
April 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28921850/prospective-comparison-of-transperineal-mri-ultrasound-fusion-biopsy-and-transrectal-systematic-biopsy-in-biopsy-na%C3%A3-ve-patients
#7
Angelika Borkowetz, Boris Hadaschik, Ivan Platzek, Marieta Toma, Georgi Torsev, Theresa Renner, Roman Herout, Martin Baunacke, Michael Laniado, Gustavo Baretton, Jan Philipp Radtke, Claudia Kesch, Markus Hohenfellner, Michael Froehner, Heinz-Peter Schlemmer, Manfred Wirth, Stefan Zastrow
OBJECTIVES: To evaluate the value of multiparametric magnetic resonance imaging (mpMRI) for the detection of significant prostate cancer (PCa) and to compare transperineal MRI/ultrasound-fusion biopsy (fusPbx) to conventional transrectal systematic biopsy (sysPbx) in biopsy-naïve patients. PATIENTS AND METHODS: This multicentre, prospective trial investigated biopsy-naïve patients with suspicion of PCa undergoing transperineal fusPbx in combination with transrectal sysPbx (comPbx)...
September 16, 2017: BJU International
https://www.readbyqxmd.com/read/28901582/prospective-evaluation-on-the-effect-of-interobserver-variability-of-digital-rectal-examination-on-the-performance-of-the-rotterdam-prostate-cancer-risk-calculator
#8
Nuno Pereira-Azevedo, Isaac Braga, Jan Fm Verbeek, Luís Osório, Vítor Cavadas, Avelino Fraga, Eduardo Carrasquinho, Eduardo Cardoso de Oliveira, Daan Nieboer, Monique J Roobol
OBJECTIVES: To assess the level of agreement between digital rectal examination findings of two urologists and its effect on risk prediction using the digital rectal examination-based Rotterdam Prostate Cancer Risk Calculator. METHODS: The study sample consisted of a prospective cohort of asymptomatic unscreened men with prostate-specific antigen ≤50.0 ng/mL and transrectal ultrasound volume ≤110 mL who underwent transrectal ultrasound-guided prostate biopsy...
September 13, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28890088/management-of-local-relapse-after-prostate-cancer-radiotherapy-surgery-or-radiotherapy
#9
C Hennequin, J-M Hannoun-Lévi, F Rozet
Isolated local relapse after prostate cancer radiotherapy corresponds to 40% of biochemical failure. The management of these relapses is not well defined. Several strategies are available including surgery, high-intensity focused ultrasounds (HIFU), cryotherapy and reirradiation. Radical prostatectomy is the historical approach; biochemical control is obtained in 50 to 80% at 5 year. However, morbidity is higher after irradiation than as a first line treatment. Some limited series of HIFU and cryotherapy have been published with interesting results, but again the risk of urinary and rectal toxicity is high...
September 7, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28875095/evaluation-of-prostatic-lesions-by-transrectal-ultrasound-color-doppler-and-the-histopathological-correlation
#10
Sachin Khanduri, Gaurav Katyal, Aakshit Goyal, Saurav Bhagat, Santosh Yadav, Tarim Usmani, Nikita Singh, Mriganki Chaudhary, Shobha Khanduri
Objective To evaluate the role of a transrectal ultrasound (TRUS) guided biopsy and a color Doppler test in the detection of prostate cancer in patients with increased serum prostate-specific antigen (PSA) levels and/or an abnormal digital rectal examination (DRE). Method A total of 40 cases, ranging in age from 50 to 80 years and showing increased serum PSA levels (4-10 ng/ml) and/or abnormal DRE, were enrolled and underwent TRUS evaluation followed by color Doppler flowmetric studies. A TRUS-guided biopsy was performed in all the cases...
July 3, 2017: Curēus
https://www.readbyqxmd.com/read/28872226/prebiopsy-multiparametric-mri-based-risk-score-for-predicting-prostate-cancer-in-biopsy-naive-men-with-prostate-specific-antigen-between-4-10%C3%A2-ng-ml
#11
Durgesh Kumar Dwivedi, Rajeev Kumar, Alok Kumar Dwivedi, Girdhar S Bora, Sanjay Thulkar, Sanjay Sharma, Siddhartha Datta Gupta, Naranamangalam R Jagannathan
BACKGROUND: Risk calculators have traditionally utilized serum prostate-specific antigen (PSA) values in addition to clinical variables to predict the likelihood of prostate cancer (PCa). PURPOSE: To develop a prebiopsy multiparametric MRI (mpMRI)-based risk score (RS) and a statistical equation for predicting the risk of PCa in biopsy-naive men with serum PSA between 4-10 ng/mL that may help reduce unnecessary biopsies. STUDY TYPE: Prospective cross-sectional study...
September 4, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28871396/retrospective-comparison-of-direct-in-bore-magnetic-resonance-imaging-mri-guided-biopsy-and-fusion-guided-biopsy-in-patients-with-mri-lesions-which-are-likely-or-highly-likely-to-be-clinically-significant-prostate-cancer
#12
Wulphert Venderink, Marloes van der Leest, Annemarijke van Luijtelaar, Wendy J M van de Ven, Jurgen J Fütterer, J P Michiel Sedelaar, Henkjan J Huisman
PURPOSE: To compare clinically significant prostate cancer (csPCa) detection rates between magnetic resonance imaging (MRI)-transrectal ultrasound (TRUS) fusion-guided prostate biopsy (FGB) and direct in-bore MRI-guided biopsy (MRGB). METHODS: We performed a comparison of csPCa detection rates between FGB and MRGB. Included patients had (1) at least one prior negative TRUS biopsy; (2) a Prostate Imaging Reporting and Data System (PI-RADS) 4 or 5 lesion and (3) a lesion size of ≥8 mm measured in at least one direction...
September 4, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28866023/where-do-trus-and-mri-guided-biopsies-miss-significant-prostate-cancer
#13
Lars Boesen, Nis Nørgaard, Vibeke Løgager, Ingegerd Balslev, Henrik S Thomsen
OBJECTIVE: To identify the location of missed sPCa lesions by transrectal ultrasound-guided (TRUSbx) and multiparametric MRI-guided biopsies (mpMRIbx) in men undergoing repeat biopsies. METHODS: 289 men with prior negative TRUSbx underwent mpMRI. The location of any suspicious lesion was registered and scored using PIRADS v1 classification according to the likelihood of being sPCa. All patients underwent repeat (re-)TRUSbx and targeted mpMRIbx (image fusion) of any suspicious lesion...
August 30, 2017: Urology
https://www.readbyqxmd.com/read/28861301/longer-biopsy-cores-do-not-increase-prostate-cancer-detection-rate-a-large-scale-cohort-study-refuting-cut-off-values-indicated-in-the-literature
#14
Hasan Yılmaz, Ufuk Yavuz, Murat Üstüner, Seyfettin Çiftçi, Hikmet Yaşar, Bahar Müezzinoğlu, Ali Kemal Uslubaş, Özdal Dillioğlugil
OBJECTIVE: Only a few papers in the literature aimed to evaluate biopsy core lengths. Additionally, studies evaluated the core length with different approaches. We aimed to determine whether prostate cancer (PCa) detection is affected from core lengths according to three different approaches in a large standard cohort and compare our cut-off values with the published cut-offs. MATERIAL AND METHODS: We retrospectively analyzed 1,523 initial consecutive transrectal ultrasound-guided 12-core prostate biopsies...
September 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28858541/risk-stratification-among-men-with-prostate-imaging-reporting-and-data-system-version-2-category-3-transition-zone-lesions-is-biopsy-always-necessary
#15
Ely R Felker, Steven S Raman, Daniel J Margolis, David S K Lu, Nicholas Shaheen, Shyam Natarajan, Devi Sharma, Jiaoti Huang, Fred Dorey, Leonard S Marks
OBJECTIVE: The objective of our study was to determine the clinical and MRI characteristics of clinically significant prostate cancer (PCA) (Gleason score ≥ 3 + 4) in men with Prostate Imaging Reporting and Data System Version 2 (PI-RADSv2) category 3 transition zone (TZ) lesions. MATERIALS AND METHODS: From 2014 to 2016, 865 men underwent prostate MRI and MRI/ultrasound (US) fusion biopsy (FB). A subset of 90 FB-naïve men with 96 PI-RADSv2 category 3 TZ lesions was identified...
August 31, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28842211/the-effects-of-beginning-population-based-psa-screening-at-age-40
#16
Christopher J Weight, Vikram M Narayan, Daniel Smith, Simon P Kim, R Jeffrey Karnes
OBJECTIVES: To evaluate population-based CaP testing of men in their 40s, given the paucity of prospective data evaluating the consequences of PSA testing in younger men for prostate cancer (CaP). METHODS: 1052 men in their 40s were followed longitudinally for prostate outcomes, from 1990 to 2010. A random subset of 268 men was selected to undergo biennial CaP testing including: PSA testing, transrectal ultrasound, and a digital rectal exam (DRE). A representative population of 609 men with a subset of 159 men who also began CaP testing in their 50s was also evaluated as a comparison group...
August 22, 2017: Urology
https://www.readbyqxmd.com/read/28836176/elevated-hardness-of-peripheral-gland-on-real-time-elastography-is-an-independent-marker-for-high-risk-prostate-cancers
#17
Qi Zhang, Jing Yao, Yehua Cai, Limin Zhang, Yishuo Wu, Jingyu Xiong, Jun Shi, Yuanyuan Wang, Yi Wang
OBJECTIVES: To examine the role of quantitative real-time elastography (RTE) features on differentiation between high-risk prostate cancer (PCA) and non-high-risk prostatic diseases in the initial transperineal biopsy setting. METHODS: We retrospectively included 103 patients with suspicious PCA who underwent both RTE and initial transperineal prostate biopsy. Patients were grouped into high-risk and non-high-risk categories according to the D'Amico's risk stratification...
August 23, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28832304/mri-targeted-biopsy-is-systematic-biopsy-obsolete
#18
Dordaneh Sugano, Abhinav Sidana, Brian Calio, Kaitlan Cobb, Baris Turkbey, Peter A Pinto
INTRODUCTION: Although prostate cancer is the most common non-cutaneous cancer in men, it is traditionally diagnosed with a non-targeted, systematic transrectal ultrasound prostate biopsy (TRUS-Bx). This technique has been demonstrated to both under-detect clinically significant (CS) cancer and over-detect clinically insignificant cancer, and performs poorly in patients with a prior negative biopsy. With recent advances in MRI technology, most prominently the advent of multiparametric MRI, MRI-targeted prostate biopsy (MRI-TB) has been gaining favor as a more accurate alternative to TRUS-Bx...
August 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28830850/irreversible-electroporation-for-the-treatment-of-localized-prostate-cancer-a-summary-of-imaging-findings-and-treatment-feedback
#19
Matthijs J Scheltema, Arnoud W Postema, Daniel M de Bruin, Mara Buijs, Marc R Engelbrecht, M Pilar Laguna, Hessel Wijkstra, Theo M de Reijke, Jean J M C H de la Rosette
PURPOSE: Imaging plays a crucial role in ablative therapies for prostate cancer (PCa). Irreversible electroporation (IRE) is a new treatment modality used for focal treatment of PCa. We aimed to demonstrate what imaging modalities can be used by descriptively reporting contrast-enhanced ultrasonography (CEUS), multiparametric magnetic resonance imaging (mpMRI), and grey-scale transrectal ultrasound (TRUS) results. Furthermore, we aimed to correlate quantitatively the ablation zone seen on mpMRI and CEUS with treatment planning to provide therapy feedback...
September 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28828356/relation-between-histological-prostatitis-and-lower-urinary-tract-symptoms-and-erectile-function
#20
Taiki Mizuno, Ippei Hiramatsu, Yusuke Aoki, Hirofumi Shimoyama, Taiji Nozaki, Masato Shirai, Yan Lu, Shigeo Horie, Akira Tsujimura
BACKGROUND: Chronic prostatitis (CP) significantly worsens a patient's quality of life (QOL), but its etiology is heterogeneous. Although the inflammatory process must be associated with CP symptoms, not all patients with benign prostatic hyperplasia and histological prostatitis complain of CP symptoms. The relation between the severity of histological inflammation and lower urinary tract symptoms (LUTS) and erectile function is not fully understood. METHODS: This study comprised 26 men with suspected prostate cancer but with no malignant lesion by pathological examination of prostate biopsy specimens...
September 2017: Prostate International
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