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Prostate cancer and ultrasound

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https://www.readbyqxmd.com/read/29145315/iodine-125-seed-implantation-for-synchronous-pancreatic-metastases-from-hepatocellular-carcinoma-a-case-report-and-literature-review
#1
Junjie Xiong, Selina Kwong Chian, Jiao Li, Xubao Liu
RATIONALE: The image-guided iodine-125 seed implantation has been widely used for a variety of tumors, including prostatic cancer, pulmonary cancer, hepatocellular carcinoma and pancreatic cancer. However, the clinical value of iodine-125 seed implantation for the treatment of pancreatic metastasis from hepatocellular carcinoma has not been reported. We presented the first case with ultrasound-guided iodine-125 seed implantation for this disease. PATIENT CONCERNS: We presented the case of a 48-year-old man patient with primary hepatocellular carcinoma and pancreatic metastasis who was managed with ultrasound-guided iodine-125 seeds implantation...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29139310/pudendal-nerve-injury-impairs-anorectal-function-and-health-related-quality-of-life-measures-%C3%A2-2-years-after-3d-conformal-radiotherapy-for-prostate-cancer
#2
Eng Eric Yeoh, Rochelle Botten, Addolorata Di Matteo, Marcus Tippett, Jonathon Hutton, Robert Fraser, Phillip G Dinning, David Wattchow
PURPOSE: To compare GI symptoms, measures of generic and disease specific health related quality of life (HRQoL), anorectal and pudendal nerve function and anal sphincter morphology between (i) patients ≥2 years after 3D conformal radiotherapy (3D-CRT)±high dose rate (HDR) brachytherapy for carcinoma of the prostate and aged matched patients before radiotherapy and (ii) symptomatic and asymptomatic patients ≥2 years after 3D-CRT ± HDR brachytherapy. MATERIAL AND METHODS: Methodology included: (i) modified LENT-SOMA scales for GI symptoms, (ii) EORTC QLQ-C30 and EORTC QLQ-PR25 questionnaires for generic and disease specific HRQoL, (iii) anorectal manometry and terminal motor latency for anorectal and pudendal nerve function and (iv) endorectal ultrasound for anal sphincter morphology...
November 15, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29126575/validation-of-prostate-imaging-reporting-and-data-system-version-2-a-retrospective-analysis
#3
Michael Nguyentat, Alexander Ushinsky, Alessandra Miranda-Aguirre, Edward Uchio, Chandana Lall, Layla Shirkhoda, Thomas Lee, Christopher Green, Roozbeh Houshyar
PURPOSE: Use of magnetic resonance imaging (MRI)/transrectal ultrasound fusion biopsies to determine the accuracy of multiparametric MRI (mpMRI), using Prostate Imaging-Reporting and Data System version 2 (PI-RADSv2), for detecting clinically significant prostate cancer in the overall gland and specifically the peripheral zone (PZ) and transitional zone (TZ). METHODS: A retrospective analysis of patients who underwent fusion biopsy identified 137 men with 231 prostate lesions was approved by the Institutional Review Board...
October 12, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29121982/application-of-ultrasound-imaging-biomarkers-histoscanning%C3%A2-improves-staging-reliability-of-prostate-biopsies
#4
M F Hamann, D Meyer, S Knüpfer, J Fuchs, K P Jünemann, C M Naumann
OBJECTIVE: Imaging biomarkers like HistoScanning™ augment the informative value of ultrasound. Analogue image-guidance might improve the diagnostic accuracy of prostate biopsies and reduce misclassifications in preoperative staging and grading. RESULTS: Comparison of 77 image-guided versus 88 systematic prostate biopsies revealed that incorrect staging and Gleason misclassification occurs less frequently in image-guided than in systematic prostate biopsies. Systematic prostate biopsies (4-36 cores, median 12 cores) tended to detect predominantly unilateral tumors (39% sensitivity, 90...
November 9, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29119339/the-prostate-cancer-screening-clinic-in-the-bahamas-a-model-for-low-and-middle-income-countries
#5
Robin Roberts, Corydon Mitchell, Ana Lourdes Tancawan, Mandi Pedican, Glenn Wayne Jones
PURPOSE: Grand Bahama (pop. 51,000) is an island within the Bahamas archipelago. A local chapter of International Us TOO Prostate Cancer Support Group (UTGB) has led an annual community-based prostate cancer screening clinic in Grand Bahama each September since 2009. Features of this initiative, characteristics of attendees, and a description of found cancers were summarized to determine the clinic's value and to guide improvements. METHOD: We analyzed the established clinic from 2012 to 2015, wherein UTGB attracted corporate funding, volunteers managed clinics, and health professionals provided healthcare services...
November 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29118380/delivery-of-the-gene-encoding-the-tumor-suppressor-sef-into-prostate-tumors-by-therapeutic-ultrasound-inhibits-both-tumor-angiogenesis-and-growth
#6
Sabrin Mishel, Boris Shneyer, Lina Korsensky, Orit Goldshmidt-Tran, Tom Haber, Marcelle Machluf, Dina Ron
Carcinomas constitute over 80% of all human cancer types with no effective therapy for metastatic disease. Here, we demonstrate, for the first time, the efficacy of therapeutic-ultrasound (TUS) to deliver a human tumor suppressor gene, hSef-b, to prostate tumors in vivo. Sef is downregulated in various human carcinomas, in a manner correlating with tumor aggressiveness. In vitro, hSef-b inhibited proliferation of TRAMP C2 cells and attenuated activation of ERK/MAPK and the master transcription factor NF-κB in response to FGF and IL-1/TNF, respectively...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29114110/the-diagnosis-of-obstructive-hydronephrosis-with-color-doppler-ultrasound
#7
Petrit Nuraj, Nexhmi Hyseni
Background: The obstructive hydronephrosis is a term that implicates the structural and functional changes of the kidneys as a result of difficulties in the flow of urine. Hydronephrosis specifically describes dilation and swelling of the kidney. Hydronephrosis is a condition that typically occurs when the kidney swells due to the failure of normal drainage of urine from the kidney to the bladder. Our aim was to evaluate the degree of hydronephrosis, causes and diagnostic method. Material and...
September 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/29113782/interobserver-variability-in-rectum-contouring-in-high-dose-rate-brachytherapy-for-prostate-cancer-a-multi-institutional-prospective-analysis
#8
Rodolfo Chicas-Sett, Francisco Celada-Alvarez, Susana Roldan, Silvia Rodriguez-Villalba, Miguel Santos-Olias, Pablo Soler-Catalan, Blanca Ibanez-Rosello, Leoncio Arribas, Alejandro Tormo, Jose M Benlloch, Jose Perez-Calatayud
PURPOSE: The aim of this study was to evaluate the interobserver variability (IOV) of rectum contouring, and its dosimetric consequences, for high-dose-rate brachytherapy in patients with prostate cancer across multiple institutions. METHODS AND MATERIALS: Five radiation oncologists contoured rectums in 10 patients on transperineal ultrasound image sets after establishing a delineation consensus. The D0.1cc, D1cc, and D2cc rectum volume parameters were determined...
November 4, 2017: Brachytherapy
https://www.readbyqxmd.com/read/29112469/risk-of-clinically-significant-prostate-cancer-associated-with-prostate-imaging-reporting-and-data-system-category-3-equivocal-lesions-identified-on-multiparametric-prostate-mri
#9
Alison D Sheridan, Sameer K Nath, Jamil S Syed, Sanjay Aneja, Preston C Sprenkle, Jeffrey C Weinreb, Michael Spektor
OBJECTIVE: The objective of this study is to determine the frequency of clinically significant cancer (CSC) in Prostate Imaging Reporting and Data System (PI-RADS) category 3 (equivocal) lesions prospectively identified on multiparametric prostate MRI and to identify risk factors (RFs) for CSC that may aid in decision making. MATERIALS AND METHODS: Between January 2015 and July 2016, a total of 977 consecutively seen men underwent multiparametric prostate MRI, and 342 underwent MRI-ultrasound (US) fusion targeted biopsy...
November 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29108869/the-cadmus-trial-multi-parametric-ultrasound-targeted-biopsies-compared-to-multi-parametric-mri-targeted-biopsies-in-the-diagnosis-of-clinically-significant-prostate-cancer
#10
Alistair Grey, Rebecca Scott, Susan Charman, Jan van der Meulen, Peter Frinking, Peter Acher, Sidath Liyanage, Sanjeev Madaan, Gabriel Constantinescu, Bina Shah, Chris Brew Graves, Alex Freeman, Charles Jameson, Navin Ramachandran, Mark Emberton, Manit Arya, Hashim U Ahmed
OBJECTIVE: To compare the proportion of clinically significant prostate cancers (PCa) found in lesions detected by multiparametric MRI (mpMRI) with that found in lesions detected by multiparametric ultrasound (mpUSS), in men at risk. PATIENTS AND METHODS: CADMUS (Cancer Detection by Multiparametric Ultrasound of the prostate) is a prospective, multi-centre paired cohort diagnostic utility study with built-in randomisation of order of biopsies. The trial is registered ISRCTN38541912...
November 3, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29108322/the-predictive-efficacy-of-hypoechoic-lesion-in-ultrasound-for-prostate-cancer-in-chinese-people-five-year-experience-in-a-moderated-10-core-transperineal-prostate-biopsy-procedure
#11
Tian Yang, Limin Zhang, Yixin Chen, Yehua Cai, Haowen Jiang, Qiang Ding
We aim to investigate the predictive efficacy of hypoechoic lesion for prostate cancer at different levels of serum PSA in the procedure of transrectal ultrasound guided 10-core trans-perineal prostate biopsy (TP-PBx). In this study, we collected clinical parameters involving age, digital rectal examination (DRE), PSA, prostate volume, pathological diagnosis, Gleason score, novel Gleason group, and numbers of positive cores from 856 patients who had elevated level of PSA above 4 ng/ml or susceptible nodule of prostate gland in DRE received the moderated 10-core TP-PBx procedure...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29107274/focal-ablation-of-early-stage-prostate-cancer-candidate-selection-treatment-guidance-and-assessment-of-outcome
#12
REVIEW
Eric Edison, Taimur Tariq Shah, Hashim U Ahmed
Prostate cancer lesions smaller than 0.5 m(3), or Gleason pattern 3, are likely clinically insignificant. Clinically significant disease is often limited to a single index lesion. Focal ablation targets this index lesion, maintains oncological control, and minimizes complications by preserving healthy prostate tissue. Template mapping biopsy or multiparametric MRI-targeted biopsies are used to identify appropriate index lesions. Multiple energy modalities have been tested, including high-intensity frequency ultrasound, cryoablation, laser ablation, photodynamic therapy, focal brachytherapy, radiofrequency ablation, irreversible electroporation...
November 2017: Urologic Clinics of North America
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
#13
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/29094042/evaluation-of-mri-ultrasound-fusion-guided-prostate-biopsy-using-transrectal-and-transperineal-approaches
#14
Susanne Tewes, Inga Peters, Ansgar Tiemeyer, Matti Peperhove, Dagmar Hartung, Stefanie Pertschy, Markus A Kuczyk, Frank Wacker, Katja Hueper
Purpose: To evaluate transrectal (TR) and transperineal (TP) approaches for MRI/ultrasound (MRI/US) fusion-guided biopsy to detect prostate cancer (PCa). Materials and Methods: 154 men underwent multiparametric MRI and MRI/US fusion-guided biopsy between July 2012 and October 2016. 79/154 patients were biopsied with a TR approach and 75/154 with a TP approach. MRI was retrospectively analyzed according to PI-RADS version 2. PI-RADS scores were compared with histopathological results...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29084410/significance-of-mri-transrectal-ultrasound-fusion-three-dimensional-model-guided-targeted-biopsy-based-on-transrectal-ultrasound-guided-systematic-biopsy-in-prostate-cancer-detection-a-systematic-review-and-meta-analysis
#15
Yongquan Tang, Zhihong Liu, Liangyou Tang, Ruochen Zhang, Yiping Lu, Jiayu Liang, Zijun Zou, Chuan Zhou, Yujie Wang
PURPOSE: To assess MRI/Transrectal Ultrasound (TRUS) fusion three-dimensional model-guided targeted biopsy (3D-Tb) versus TRUS-guided systematic biopsy (Sb) in detecting overall and high-Gleason-score (≥7) prostate cancer (PCa). METHODS: Pubmed and Web of science were searched. Studies with men having a suspicious lesion on MRI were included, which were divided into initial biopsy, previous negative biopsy, and mixed groups in meta-analysis. RESULTS: Totally 13 cohorts in 12 studies, with 3,225 men were included...
October 30, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/29075977/mri-us-fusion-guided-biopsy-performing-exclusively-targeted-biopsies-for-the-early-detection-of-prostate-cancer
#16
Maurizio Del Monte, Leonardo Costantino, Vincenzo Salvo, Marcello Domenico Grompone, Martina Pecoraro, Arnaldo Stanzione, Riccardo Campa, Francesco Vullo, Alessandro Sciarra, Carlo Catalano, Valeria Panebianco
PURPOSE: The aim of this study was to validate the role of MR/Ultrasound Fusion-Guided Targeted Biopsy as a first diagnostic modality in subjects with clinical suspicion of prostate cancer (PCa). MATERIALS AND METHODS: 108 men (age range 46-78 years) with clinical suspicion for PCa (PSA > 4 ng/mL) underwent multiparametric MRI of the prostate (mpMRI) and, when suspicious lesion were found (according to the PIRADSv2 scoring system), targeted biopsy was performed...
October 26, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/29074938/label-free-analysis-of-the-characteristics-of-a-single-cell-trapped-by-acoustic-tweezers
#17
Min Gon Kim, Jinhyoung Park, Hae Gyun Lim, Sangpil Yoon, Changyang Lee, Jin Ho Chang, K Kirk Shung
Single-cell analysis is essential to understand the physical and functional characteristics of cells. The basic knowledge of these characteristics is important to elucidate the unique features of various cells and causative factors of diseases and determine the most effective treatments for diseases. Recently, acoustic tweezers based on tightly focused ultrasound microbeam have attracted considerable attention owing to their capability to grab and separate a single cell from a heterogeneous cell sample and to measure its physical cell properties...
October 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29074136/new-approach-to-guide-target-prostate-biopsy-technique-and-initial-experience
#18
Enrique Gómez Gómez, José Valero Rosa, Julia Carrasco Valiente, Francisco Triviño Tarradas, Francisco Anglada Curado, Daniel López Ruiz, María José Requena Tapia
OBJECTIVE: To describe the technique of transrectal biopsy with a new device that fuses multiparametric magnetic resonance (mpMRI) and ultrasound images in real time to guide target biopsies and to evaluate our initial experience. METHODS: Patients with persistent suspicion of prostate cancer despite a previous negative biopsy and who had an mpMRI before the biopsy were selected. All patients underwent target biopsy plus standard systematic biopsy. Significant prostate cancer (sig PCa) was defined according to the Epstein criteria for standard biopsy and Gleason grade of >7 and a positive core length of >5 mm for target biopsy...
September 4, 2017: Urology
https://www.readbyqxmd.com/read/29074079/high-dose-rate-brachytherapy-as-monotherapy-for-localised-prostate-cancer
#19
Iosif Strouthos, Nikolaos Tselis, Georgios Chatzikonstantinou, Saeed Butt, Dimos Baltas, Dimitra Bon, Natasa Milickovic, Nikolaos Zamboglou
BACKGROUND AND PURPOSE: To evaluate the oncological outcome of a three-implant high dose rate (HDR) brachytherapy (BRT) protocol as monotherapy for clinically localised prostate cancer. MATERIAL AND METHODS: Between February 2008 and December 2012, 450 consecutive patients with clinically localised prostate cancer were treated with HDR monotherapy. The cohort comprised of 198 low-, 135 intermediate- and 117 high risk patients being treated with three single-fraction implants of 11...
October 23, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29072462/model-for-microcapsule-drug-release-with-ultrasound-activated-enhancement
#20
Nadia H Tsao, Elizabeth A H Hall
Microbubbles and microcapsules of silane-polycaprolactone (SiPCL) have been filled with a fluorescent acridium salt (lucigenin) as a model for a drug-loaded delivery vehicle. The uptake and delivery were studied and compared with similar microbubbles and microcapsules of silica/mercaptosilica (S/M/S). Positively charged lucigenin was encapsulated through an electrostatic mechanism, following a Type I Langmuir isotherm as expected, but with an additional multilayer uptake that leads to a much higher loading for the SiPCL system (∼280 μg/2...
November 3, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
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