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https://www.readbyqxmd.com/read/27882307/metabolic-imaging-in-prostate-cancer-where-we-are
#1
REVIEW
Claudia Testa, Cristian Pultrone, David Neil Manners, Riccardo Schiavina, Raffaele Lodi
In recent years, the development of diagnostic methods based on metabolic imaging has been aimed at improving diagnosis of prostate cancer (PCa) and perhaps at improving therapy. Molecular imaging methods can detect specific biological processes that are different when detected within cancer cells relative to those taking place in surrounding normal tissues. Many methods are sensitive to tissue metabolism; among them, positron emission tomography (PET) and magnetic resonance spectroscopic imaging (MRSI) are widely used in clinical practice and clinical research...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27858090/dramatic-increase-in-the-utilization-of-multiparametric-magnetic-resonance-imaging-for-detection-and-management-of-prostate-cancer
#2
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/27855661/comparison-of-the-complications-of-traditional-12-cores-transrectal-prostate-biopsy-with-image-fusion-guided-transperineal-prostate-biopsy
#3
Haifeng Huang, Wei Wang, Tingsheng Lin, Qing Zhang, Xiaozhi Zhao, Huibo Lian, Hongqian Guo
BACKGROUND: To compare the complications of traditional transrectal (TR) prostate biopsy and image fusion guided transperineal (TP) prostate biopsy in our center. METHODS: Two hundred and fourty-two patients who underwent prostate biopsy from August 2014 to January 2015were reviewed. Among them, 144 patients underwent systematic 12-core transrectal ultrasonography (TRUS) guided prostate biopsy (TR approach) while 98 patients underwent free-hand transperineal targeted biopsy with TRUS and multi-parameter magnetic resonance imaging (mpMRI) fusion images (TP approach)...
November 17, 2016: BMC Urology
https://www.readbyqxmd.com/read/27847972/first-report-of-robot-assisted-transperineal-fusion-versus-off-target-biopsy-in-patients-undergoing-repeat-prostate-biopsy
#4
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
#5
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/27842672/can-multiparametric-mri-replace-roach-equations-in-staging-prostate-cancer-before-external-beam-radiation-therapy
#6
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
https://www.readbyqxmd.com/read/27829431/radiomics-based-targeted-radiotherapy-planning-rad-trap-a-computational-framework-for-prostate-cancer-treatment-planning-with-mri
#7
Rakesh Shiradkar, Tarun K Podder, Ahmad Algohary, Satish Viswanath, Rodney J Ellis, Anant Madabhushi
BACKGROUND: Radiomics or computer - extracted texture features have been shown to achieve superior performance than multiparametric MRI (mpMRI) signal intensities alone in targeting prostate cancer (PCa) lesions. Radiomics along with deformable co-registration tools can be used to develop a framework to generate targeted focal radiotherapy treatment plans. METHODS: The Rad-TRaP framework comprises three distinct modules. Firstly, a module for radiomics based detection of PCa lesions on mpMRI via a feature enabled machine learning classifier...
November 10, 2016: Radiation Oncology
https://www.readbyqxmd.com/read/27825433/advancement-of-mr-and-pet-mr-in-prostate-cancer
#8
REVIEW
Liza Lindenberg, Mark Ahlman, Baris Turkbey, Esther Mena, Peter Choyke
Multiparametric magnetic resonance (mpMRI) imaging has assumed a larger role in the diagnosis and management of prostate cancer. The current method of detecting prostate cancer relies on blind systematic biopsy, guided only by transrectal ultrasound that generally directs the needle biopsy to sextants of the prostate rather than specific lesions. MpMRI is playing an increasing role in the detection of primary cancer as it can visualize cancers and direct biopsies. However, even mpMRI is inherently nonspecific and numerous biopsies performed under MR guidance prove to be negative...
November 2016: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/27814768/impact-of-3t-multiparametric-mri-and-fdg-pet-ct-in-the-evaluation-of-occult-primary-cancer-with-cervical-node-metastasis
#9
Mária Gődény, Zsolt Lengyel, Gábor Polony, Zoltán Takácsi Nagy, Gergely Léránt, Orsolya Zámbó, Éva Remenár, László Tamás, Miklós Kásler
BACKGROUND: This study aimed to determine the ability of multimodal evaluation with multiparametric 3T-MRI (MPMRI) and positron emission tomography - computed tomography (PET/CT) to detect cancer of unknown primary origin (CUP) with neck lymph node (LN) metastasis. METHODS: The study group comprised 38 retrospectively analysed consecutive patients with LN metastasis in the head and neck (HN) region without known primary tumours (PTs). Statistical values of 3T-MRI and of FDG-PET/CT scans were evaluated...
November 4, 2016: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/27805423/the-potential-of-multiparametric-mri-of-the-breast
#10
Katja Pinker, Thomas H Helbich, Elizabeth A Morris
Magnetic resonance imaging (MRI) is an essential tool in breast imaging, with multiple established indications. Dynamic contrast-enhanced MRI (DCE-MRI) is the backbone of any breast MRI protocol and has an excellent sensitivity and good specificity for breast cancer diagnosis. DCE-MRI provides high-resolution morphological information, as well as some functional information about neo-angiogenesis as a tumour-specific feature. To overcome limitations in specificity, several other functional MRI parameters have been investigated and the application of these combined parameters is defined as multiparametric MRI (mpMRI) of the breast...
November 2, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27802450/incorporating-multiparametric-mri-staging-and-the-new-histological-grade-group-system-improves-risk-stratified-detection-of-bone-metastasis-in-prostate-cancer
#11
David Thurtle, Ray C J Hsu, Madhurima Chetan, Artitaya Lophatananon, Rachel Hubbard, Vincent J Gnanapragasam, Tristan Barrett
BACKGROUND: There remains uncertainty on the need for bone staging in men with intermediate-risk prostate cancer. Current guidelines do not use mpMRI-staging information and rely on historic pathology grading. METHODS: We investigated the ability of mpMRI and the new Grade Group system to better predict bone metastasis status in a retrospective cohort study of 438 men with prostate cancer undergoing baseline mpMRI and isotope bone scintigraphy (BS). RESULTS: Including mpMRI-staging information significantly increased the specificity of bone metastasis detection from 3...
November 22, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27785560/multiparametric-magnetic-resonance-imaging-for-prostate-cancer-a-comparative-study-including-radical-prostatectomy-specimens
#12
Liam Toner, Nathan Papa, Marlon Perera, Nikolas Katelaris, Mahesha Weerakoon, Kwang Chin, Laurence Harewood, Damien M Bolton, Nathan Lawrentschuk
PURPOSE: To evaluate the diagnostic and staging ability of multiparametric MRI (mpMRI) compared to radical prostatectomy (RP) specimens after dissemination of this technology to several centres. mpMRI is an evolving technique aiming to improve upon the diagnostic sensitivity of prostate biopsy for the diagnosis of prostate cancer. Differences in interpretation, expertise and application of mpMRI are responsible for the range of reported results. METHODS: This retrospective clinical study was conducted with consecutive patients through an electronic database of tertiary hospitals and adjacent private urology practices in Australia...
October 26, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27770164/diffusion-weighted-endorectal-mr-imaging-at-3t-for-prostate-cancer-correlation-with-tumor-cell-density-and-percentage-gleason-pattern-on-whole-mount-pathology
#13
Daniel I Glazer, Elmira Hassanzadeh, Andriy Fedorov, Olutayo I Olubiyi, Shayna S Goldberger, Tobias Penzkofer, Trevor A Flood, Paul Masry, Robert V Mulkern, Michelle S Hirsch, Clare M Tempany, Fiona M Fennessy
OBJECTIVE: To determine if tumor cell density and percentage of Gleason pattern within an outlined volumetric tumor region of interest (TROI) on whole-mount pathology (WMP) correlate with apparent diffusion coefficient (ADC) values on corresponding TROIs outlined on pre-operative MRI. METHODS: Men with biopsy-proven prostate adenocarcinoma undergoing multiparametric MRI (mpMRI) prior to prostatectomy were consented to this prospective study. WMP and mpMRI images were viewed using 3D Slicer and each TROI from WMP was contoured on the high b-value ADC maps (b0, 1400)...
October 22, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27749525/multiparametric-magnetic-resonance-imaging-and-frozen-section-analysis-efficiently-predict-upgrading-upstaging-and-extraprostatic-extension-in-patients-undergoing-nerve-sparing-robotic-assisted-radical-prostatectomy
#14
Roberto Bianchi, Gabriele Cozzi, Giuseppe Petralia, Sarah Alessi, Giuseppe Renne, Danilo Bottero, Antonio Brescia, Antonio Cioffi, Giovanni Cordima, Matteo Ferro, Deliu Victor Matei, Federica Mazzoleni, Gennaro Musi, Francesco Alessandro Mistretta, Alessandro Serino, Valeria Maria Lucia Tringali, Ioan Coman, Ottavio De Cobelli
To evaluate the role of multiparametric magnetic resonance imaging (mpMRI) in predicting upgrading, upstaging, and extraprostatic extension in patients with low-risk prostate cancer (PCa). MpMRI may reduce positive surgical margins (PSM) and improve nerve-sparing during robotic-assisted radical prostatectomy (RARP) for localized prostate cancer PCa.This was a retrospective, monocentric, observational study. We retrieved the records of patients undergoing RARP from January 2012 to December 2013 at our Institution...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27749009/evaluation-of-extracapsular-extension-in-prostate-cancer-using-qualitative-and-quantitative-multiparametric-mri
#15
Wooil Kim, Chan Kyo Kim, Jung Jae Park, Minji Kim, Jae-Hun Kim
PURPOSE: To investigate the value of multiparametric magnetic resonance imaging (mpMRI) for extracapsular extension (ECE) in prostate cancer (PCa). MATERIALS AND METHODS: In all, 292 patients who received radical prostatectomy and underwent preoperative mpMRI at 3T were enrolled retrospectively. For determining the associations with ECE, the likelihood of ECE was assessed qualitatively on T2 -weighted imaging (T2 WI) and combined T2 WI and diffusion-weighted imaging (DWI) or dynamic contrast-enhanced imaging (DCEI)...
October 17, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27748710/dce-mri-dw-mri-and-mrs-in-cancer-challenges-and-advantages-of-implementing-qualitative-and-quantitative-multi-parametric-imaging-in-the-clinic
#16
Jessica M Winfield, Geoffrey S Payne, Alex Weller, Nandita M deSouza
Multi-parametric magnetic resonance imaging (mpMRI) offers a unique insight into tumor biology by combining functional MRI techniques that inform on cellularity (diffusion-weighted MRI), vascular properties (dynamic contrast-enhanced MRI), and metabolites (magnetic resonance spectroscopy) and has scope to provide valuable information for prognostication and response assessment. Challenges in the application of mpMRI in the clinic include the technical considerations in acquiring good quality functional MRI data, development of robust techniques for analysis, and clinical interpretation of the results...
October 2016: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/27748407/the-prostate-health-index-adds-predictive-value-to-multi-parametric-mri-in-detecting-significant-prostate-cancers-in-a-repeat-biopsy-population
#17
V J Gnanapragasam, K Burling, A George, S Stearn, A Warren, T Barrett, B Koo, F A Gallagher, A Doble, C Kastner, R A Parker
Both multi-parametric MRI (mpMRI) and the Prostate Health Index (PHI) have shown promise in predicting a positive biopsy in men with suspected prostate cancer. Here we investigated the value of combining both tests in men requiring a repeat biopsy. PHI scores were measured in men undergoing re-biopsy with an mpMRI image-guided transperineal approach (n = 279, 94 with negative mpMRIs). The PHI was assessed for ability to add value to mpMRI in predicting all or only significant cancers (Gleason ≥7). In this study adding PHI to mpMRI improved overall and significant cancer prediction (AUC 0...
October 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27738805/accuracy-of-preoperative-multiparametric-magnetic-resonance-imaging-for-prediction-of-unfavorable-pathology-in-patients-with-localized-prostate-cancer-undergoing-radical-prostatectomy
#18
Hakmin Lee, Chan Kyo Kim, Byung Kwan Park, Hyun Hwan Sung, Deok Hyun Han, Hwang Gyun Jeon, Byong Chang Jeong, Seong Il Seo, Seong Soo Jeon, Han Yong Choi, Hyun Moo Lee
INTRODUCTION: We investigated the accuracy of multiparametric MRI (mpMRI) for preoperative staging and its influence on the determination of neurovascular bundle sparing and disease prognosis in patients with localized prostate cancer. METHODS: We reviewed 1045 patients who underwent radical prostatectomy with preoperative mpMRI at a single institution. Clinical local stages determined from mpMRI were correlated with preoperative and postoperative pathological outcomes...
October 13, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27726850/dynamic-contrast-enhanced-imaging-has-limited-added-value-over-t2-weighted-imaging-and-diffusion-weighted-imaging-when-using-pi-radsv2-for-diagnosis-of-clinically-significant-prostate-cancer-in-patients-with-elevated-psa
#19
P De Visschere, N Lumen, P Ost, K Decaestecker, E Pattyn, G Villeirs
AIM: To determine the added value of dynamic contrast-enhanced imaging (DCE) over T2-weighted imaging (T2-WI) and diffusion-weighted imaging (DWI) for detection of clinically significant prostate cancer (csPC) in patients with elevated prostate-specific antigen (PSA). METHODS AND MATERIALS: Two hundred and forty-five patients with elevated PSA underwent multiparametric (mp) magnetic resonance imaging (MRI) of the prostate before biopsy. mpMRI was performed using a 3 T MRI system without an endorectal coil...
October 7, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27726240/cost-effectiveness-analysis-of-multiparametric-mri-with-increased-active-surveillance-for-low-risk-prostate-cancer-in-australia
#20
Louisa G Gordon, Robbie James, Haitham W Tuffaha, Anthony Lowe, John Yaxley
PURPOSE: To evaluate the cost-effectiveness of multiparametric magnetic resonance imaging (mpMRI) to diagnose prostate cancer and direct all low-risk patients into active surveillance (AS). MATERIALS AND METHODS: A Markov cohort model was developed to assess three scenarios: 1) no mpMRI and current AS; 2) mpMRI and current AS; and 3) mpMRI and increased AS. Men were tracked from diagnosis to end-of-life. Estimates to populate the model were derived from systematic reviews, meta-analyses, epidemiological publications, and national cost reports...
October 11, 2016: Journal of Magnetic Resonance Imaging: JMRI
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