keyword
MENU ▼
Read by QxMD icon Read
search

Multiparametric MRI

keyword
https://www.readbyqxmd.com/read/29691619/quantitative-multiparametric-mr-analysis-of-small-renal-lesions-correlation-with-surgical-pathology
#1
Motoyo Yano, Kathryn J Fowler, Santip Srisuwan, Amber Salter, Cary L Siegel
PURPOSE: The purpose of the study is to evaluate the utility of apparent diffusion coefficient (ADC), chemical shift signal intensity index (SII), and contrast enhancement in distinguishing between benign lesions and renal cell carcinoma (RCC) and between subtypes of renal lesions. METHODS: This retrospective study included 98 renal lesions (≤ 3 cm) on MRI with correlative surgical pathology. Scanner field strength, lesion location, and size were recorded. Two readers blinded to surgical pathology independently measured ADC ratio (ADC lesion/ADC non-lesion kidney), SII, and absolute/relative enhancement in the corticomedullary and nephrographic phases of contrast...
April 24, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29685613/cognitive-versus-software-assisted-registration-development-of-a-new-nomogram-predicting-prostate-cancer-at-mri-targeted-biopsies
#2
Sascha Kaufmann, Giorgio I Russo, Wolfgang Thaiss, Mike Notohamiprodjo, Fabian Bamberg, Jens Bedke, Giuseppe Morgia, Konstantin Nikolaou, Arnulf Stenzl, Stephan Kruck
INTRODUCTION: Multiparametric magnetic resonance imaging (mpMRI) is gaining acceptance to guide targeted biopsy (TB) in prostate cancer (PC) diagnosis. We aimed to compare the detection rate of software-assisted fusion TB (SA-TB) versus cognitive fusion TB (COG-TB) for PC and to evaluate potential clinical features in detecting PC and clinically significant PC (csPC) at TB. PATIENTS AND METHODS: This was a retrospective cohort study of patients with rising and/or persistently elevated prostate-specific antigen (PSA) undergoing mpMRI followed by either transperineal SA-TB or transrectal COG-TB...
April 3, 2018: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29685521/prospective-evaluation-of-fluciclovine-18-f-pet-ct-and-mri-in-detection-of-recurrent-prostate-cancer-in-non-prostatectomy-patients
#3
Oladunni Akin-Akintayo, Funmilayo Tade, Pardeep Mittal, Courtney Moreno, Peter T Nieh, Peter Rossi, Dattatraya Patil, Raghuveer Halkar, Baowei Fei, Viraj Master, Ashesh B Jani, Hiroumi Kitajima, Adeboye O Osunkoya, Claudia Ormenisan-Gherasim, Mark M Goodman, David M Schuster
PURPOSE: To investigate the disease detection rate, diagnostic performance and interobserver agreement of fluciclovine (18 F) PET-CT and multiparametric magnetic resonance imaging (mpMR) in recurrent prostate cancer. METHODS: Twenty-four patients with biochemical failure after non-prostatectomy definitive therapy, 16/24 of whom had undergone brachytherapy, underwent fluciclovine PET-CT and mpMR with interpretation by expert readers blinded to patient history, PSA and other imaging results...
May 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29680949/local-staging-with-multiparametric-mri-in-daily-clinical-practice-diagnostic-accuracy-and-evaluation-of-a-radiologic-learning-curve
#4
B H E Jansen, F H K Oudshoorn, A M Tijans, M J Yska, A P Lont, E R P Collette, J A Nieuwenhuijzen, A N Vis
PURPOSE: To estimate the diagnostic accuracy of multiparametric MRI (mpMRI) for the detection of locally advanced prostate cancer (T-stage 3-4) prior to radical prostatectomy, in a multicenter cohort representing daily clinical practice. In addition, the radiologic learning curve for the detection of locally advanced disease is evaluated. METHODS: Preoperative mpMRI findings of 430 patients (2012-2016) were compared to pathology results following radical prostatectomy...
April 21, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29680007/the-disappearing-pi-rads-5-prostate-lesion
#5
Vikram K Sabarwal, Cayde Ritchie, Kareem Rayn, Baris Turkbey, Peter Pinto
Prostate Imaging Reporting and Data System version 2 (PI-RADS v2) identifies prostate cancer on the basis of multiparametric MRI (mpMRI). As an assessment tool, it correctly predicts clinically significant cancer in the vast majority of cases. In this light, we report a rare patient, for whom a PI-RADS 5 lesion vanished over the course of 13 months.
April 2018: Canadian Journal of Urology
https://www.readbyqxmd.com/read/29679618/is-it-time-to-perform-only-mri-targeted-cores-our-experience-in-1032-men-submitted-to-prostate-biopsy
#6
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/29676063/development-and-internal-validation-of-a-side-specific-multiparametric-mri-based-nomogram-for-the-prediction-of-extracapsular-extension-of-prostate-cancer
#7
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/29675474/brain-tumor-characterization-using-multibiometric-evaluation-of-mri
#8
Faris Durmo, Jimmy Lätt, Anna Rydelius, Silke Engelholm, Sara Kinhult, Krister Askaner, Elisabet Englund, Johan Bengzon, Markus Nilsson, Isabella M Björkman-Burtscher, Thomas Chenevert, Linda Knutsson, Pia C Sundgren
The aim was to evaluate volume, diffusion, and perfusion metrics for better presurgical differentiation between high-grade gliomas (HGG), low-grade gliomas (LGG), and metastases (MET). For this retrospective study, 43 patients with histologically verified intracranial HGG (n = 18), LGG (n = 10), and MET (n = 15) were chosen. Preoperative magnetic resonance data included pre- and post-gadolinium contrast-enhanced T1-weighted fluid-attenuated inversion recover, cerebral blood flow (CBF), cerebral blood volume (CBV), fractional anisotropy, and apparent diffusion coefficient maps used for quantification of magnetic resonance biometrics by manual delineation of regions of interest...
March 2018: Tomography: a Journal for Imaging Research
https://www.readbyqxmd.com/read/29668721/ultra-high-field-mri-of-human-hippocampi-morphological-and-multiparametric-differentiation-of-hippocampal-sclerosis-subtypes
#9
Clarissa Gillmann, Roland Coras, Karl Rössler, Arnd Doerfler, Michael Uder, Ingmar Blümcke, Tobias Bäuerle
The aim of the present study is to differentiate subtypes of hippocampal sclerosis (HS) using ex vivo ultra-high field magnetic resonance imaging (MRI). Included were 14 surgically resected hippocampi of patients with medically intractable temporal lobe epilepsy. The resected hippocampi were histologically categorized into subtypes of hippocampal sclerosis (HS type 1 (n = 10), HS type 2 (n = 2) and no-HS (n = 2)) and subsequently scanned on a preclinical 7T MRI acquiring T2-weighted morphology, relaxometry and diffusion tensor imaging...
2018: PloS One
https://www.readbyqxmd.com/read/29664964/monitoring-for-myelopathic-progression-with-multiparametric-quantitative-mri
#10
Allan R Martin, Benjamin De Leener, Julien Cohen-Adad, Sukhvinder Kalsi-Ryan, David W Cadotte, Jefferson R Wilson, Lindsay Tetreault, Aria Nouri, Adrian Crawley, David J Mikulis, Howard Ginsberg, Eric M Massicotte, Michael G Fehlings
BACKGROUND: Patients with mild degenerative cervical myelopathy (DCM) are often managed non-operatively, and surgery is recommended if neurological progression occurs. However, detection of progression is often subjective. Quantitative MRI (qMRI) directly measures spinal cord (SC) tissue changes, detecting axonal injury, demyelination, and atrophy. This longitudinal study compared multiparametric qMRI with clinical measures of progression in non-operative DCM patients. METHODS: 26 DCM patients were followed...
2018: PloS One
https://www.readbyqxmd.com/read/29663686/-68-ga-psma-pet-ct-staging-prior-to-definitive-radiation-treatment-for-prostate-cancer
#11
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/29660918/contrast-enhanced-ultrasound-ceus-with-mri-image-fusion-for-monitoring-focal-therapy-of-prostate-cancer-with-high-intensity-focused-ultrasound-hifu-1
#12
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
#13
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/29656880/fundamentals-of-functional-imaging-ii-emerging-mr-techniques-and-new-methods-of-analysis
#14
A Luna, T Martín Noguerol, L Alcalá Mata
Current multiparameter MRI protocols integrate structural, physiological, and metabolic information about cancer. Emerging techniques such as arterial spin-labeling (ASL), blood oxygen level dependent (BOLD), MR elastography, chemical exchange saturation transfer (CEST), and hyperpolarization provide new information and will likely be integrated into daily clinical practice in the near future. Furthermore, there is great interest in the study of tumor heterogeneity as a prognostic factor and in relation to resistance to treatment, and this interest is leading to the application of new methods of analysis of multiparametric protocols...
April 12, 2018: Radiología
https://www.readbyqxmd.com/read/29653121/integration-and-diagnostic-accuracy-of-3t-non-endorectal-coil-prostate-mri-in-the-context-of-active-surveillance
#15
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/29650457/-non-palpable-testicular-tumors-in-adults-a-management-based-on-imaging-issue-from-the-french-urologic-association-genital-cancer-committee-s-edit
#16
L Rocher, L Feretti, P Camparo, P H Savoie, N Morel-Journel, T Murez, P Sebe, A Flechon, A Méjean, X Durand
BACKGROUND: Help in management of non-palpable testicular tumors. French Urologic Association Genital cancer committee's Edit. OBJECTIVES: To review their characterization at imaging findings of non-palpable testicular tumors. DOCUMENTARY SOURCES: Literature review (PubMed, Medline) of urological and radiological studies dealing with testicular tumors using keywords: non-palpable/incidental testicular tumors; color Doppler ultrasound; US elastography; magnetic resonance imaging; contrast enhanced sonography; partial surgery...
April 9, 2018: Progrès en Urologie
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
#17
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/29645347/does-the-introduction-of-prostate-multiparametric-mri-into-active-surveillance-of-localised-prostate-cancer-improve-patient-re-classification
#18
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
https://www.readbyqxmd.com/read/29629864/natural-history-of-prostatic-lesions-on-serial-multiparametric-magnetic-resonance-imaging
#19
Samrad Ghavimi, Hamidreza Abdi, Jennifer Waterhouse, Richard Savdie, Silvia Chang, Alison Harris, Lindsay Machan, Martin Gleave, Alan So, Larry Goldenberg, Peter C Black
INTRODUCTION: The natural history of prostatic lesions identified on multiparametric magnetic resonance imaging (mpMRI) is largely unknown. We aimed to describe changes observed over time on serial MRI. METHODS: All patients with ≥2 MRI studies between 2008 and 2015 at our institution were identified. MRI progression was defined as an increase in Prostate Imaging Reporting and Data System (PI-RADS; version 2) or size of existing lesions, or the appearance of a new lesion PIRADS ≥4...
April 6, 2018: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29627288/multiparametric-whole-body-mri-with-diffusion-weighted-imaging-and-adc-mapping-for-the-identification-of-visceral-and-osseous-metastases-from-solid-tumors
#20
Michael A Jacobs, Katarzyna J Macura, Atif Zaheer, Emmanuel S Antonarakis, Vered Stearns, Antonio C Wolff, Thorsten Feiweier, Ihab R Kamel, Richard L Wahl, Li Pan
RATIONALE AND OBJECTIVES: The purpose of this study was to investigate the use of multiparametric, whole-body, diffusion-weighted imaging (WB-DWI) and apparent diffusion coefficient (ADC) maps with T2 -weighted magnetic resonance imaging (MRI) at 3T for the detection and monitoring of metastatic disease in patients. MATERIALS AND METHODS: Fifty-four participants (32 healthy subjects and 22 patients) were scanned with WB-DWI methods using a 3T MRI scanner. Axial, sagittal, or coronal fat-suppressed T2 -weighted (T2 WI), T1 -weighted (T1 WI), and DWI images were acquired...
April 4, 2018: Academic Radiology
keyword
keyword
7556
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"