Magnetic Resonance Imaging Articles

To evaluate prognostic markers, prostate-specific antigen (PSA), prostate health index (PHI) and prostate volume indexed measures (PSAD and PHID) for predicting positive prostate cancer biopsies in magnetic resonance (MR) transrectal ultrasound fused versus non-fused transrectal ultrasonography biopsy.

Autopsy studies have confirmed the high prevalence of latent prostate cancer; however, only a certain portion of patients require definite treatment. Active surveillance is one of the treatment options which, according to national and international guidelines, should be offered to patients with newly diagnosed low-risk prostate cancer.

To evaluate the performance of 3.0T magnetic resonance imaging examination (MRI) for the local detecting of muscle invasive bladder cancer following transurethral resection of bladder tumor (TURBT).

Objective: To develop a predictive nomogram based on multi-parametric magnetic resonance imaging (mpMRI) information to identify men more likely to have a cancer diagnosed on repeat prostate biopsy.

Prostate cancer is the most common form of cancer in men in Germany; however, there is a distinct difference between incidence and mortality.

The detection of prostate cancer is based on clinical and laboratory testing using serum prostate-specific antigen (PSA) levels and transrectal ultrasound with randomized biopsy.

New clinical and technological advances in the field of magnetic resonance imaging (MRI) and targeted image-guided biopsy techniques have significantly improved the detection, localization and staging as well as active surveillance of prostate cancer in recent years.

To describe the initial experiencein our center on targeted prostate biopsies (TB) using Magnetic Resonance imaging/ultrasonography (MRI/US) fusion and to compare PCa detection with systematic biopsies (SB).

Urinary incontinence (UI) is one of the main complications of radical prostatectomy. Multiple studies have attempted to find factors that may predict early recovery of urinary continence in surgically treated patients.

To determine whether patient-specific 3D printed renal tumor models change pre-operative planning decisions made by urological surgeons in preparation for complex renal mass surgical procedures.

From our ongoing IRB approved study on renal neoplasms, ten renal mass cases were retrospectively selected based on Nephrometry Score greater than 5 (range 6-10).

Prostate-specific membrane antigen (PSMA) positron emission tomography (PSMA-PET) improves prostate cancer staging. Intraprostatic PSMA intensity may predict clinically relevant oncological outcomes.

Positron emission tomography (PET) has been commonly and successfully used, in combination with computed tomography (CT) and more recently magnetic resonance (MRI), in the workup of intermediate or high-risk prostate cancer (PCa).

Lymph node staging plays an important role in planning initial management in nonmetastatic prostate cancer. This article compares the role of (68)Gallium ((68)Ga)-prostate specific membrane antigen (PSMA) positron emission tomography-computed tomography (PET-CT) with magnetic resonance imaging (MRI), which is considered the standard staging modality.

To compare the ability of 68Ga -PSMA PET/CT (PSMA PET/CT) and multiparametric MRI (mpMRI) to exclude lymph node invasion (LNI) in patients who undergo radical prostatectomy (RP).

A multicenter cohort of patients who underwent PSMA PET/CT and pelvic mpMRI prior to RP with pelvic lymph node dissection (PLND) was analyzed.

MRI-targeted biopsy is a promising technique that offers an improved detection of clinically significant prostate cancer over standard non-targeted biopsy. It is established that prostate MRI is of use in both the primary and repeat biopsy setting for the detection of significant prostate cancer.

This meta-analysis was undertaken to review the diagnostic accuracy of PI-RADS V2 for prostate cancer (PCa) detection with multiparametric MR (mp-MR).

A comprehensive literature search of electronic databases was performed by two observers independently.

Combining magnetic-resonance imaging (MRI) and proton therapy (PT) using pencil-beam scanning (PBS) may improve image-guided radiotherapy. We aimed at assessing the impact of a magnetic field on PBS-PT plan quality and robustness.

The classical pathway for the diagnosis of prostate cancer is transrectal ultrasound-guided (TRUS) biopsy of the prostate initiated on the basis of a raised prostate-specific antigen (PSA). An alternative pathway is to perform multi-parametricMRI (MPMRI) to localise cancer and to use this information to influence the decision for, and conduct of, a subsequent biopsy, known as an MPMRI-targeted biopsy.

The added value of non-targeted systematic prostate biopsies (NT-PBx), when performed alongside MRI-targeted biopsies (T-PBx), in men referred with a suspicion of prostate cancer is unclear. We aimed to determine the clinical utility of transperineal NT-Bx, when performed alongside T-Bx, using pre-biopsy multiparametric magnetic resonance imaging (mpMRI).

PURPOSE - The role magnetic resonance imaging (MRI) as a first-line screening test for prostate cancer is unknown. We conducted a pilot study to evaluate the feasibility of prostate MRI as the primary screening test for prostate cancer.

Multiparametric magnetic resonance imaging has become an established method for evaluating the prostate for clinically significant prostate adenocarcinoma. Criteria have been developed for categorizing MRI findings, the most frequently used of which is the PI-RADS system.

In patients treated for prostate cancer, a rising serum prostate-specific antigen (PSA) level is a first sign of relapse, but imaging is needed to determine the localization of the recurrence, which may be local, in lymph nodes, and/or metastatic.

Risk prediction models and magnetic resonance imaging (MRI) of the prostate can reduce unnecessary biopsies and overdiagnosis of low-risk prostate cancer. However, it is unclear how these tools should be used in concert.

Abbreviated magnetic resonance imaging (aMRI) protocols have emerged as an alternative to multiparametric MRI (mpMRI) to reduce examination time and costs.

To compare multiple aMRI protocols for predicting pathological stage ≥T3 (≥pT3) prostate cancer (PCa).

Correct assessment of tumour stage is crucial for prostate cancer (PCa) management.

To assess the diagnostic accuracy of magnetic resonance imaging (MRI) for local PCa staging and explore the influence of different imaging protocols.

Multiparametric magnetic resonance imaging (mpMRI) of the prostate appears to improve prostate cancer detection, but studies comparing mpMRI to histopathology at the time of radical prostatectomy (RP) are lacking.

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.

Active surveillance (AS) is the preferred management option for most men with grade group (GG) 1 prostate cancer (PCa). Questions persist regarding long-term outcomes and the optimal approach to AS.

Many men with low-risk prostate cancer (PCa) receive definitive treatment despite recommendations that have been informed by two large, randomized trials encouraging active surveillance (AS). We conducted a retrospective cohort study using the Optum™ Research Database (Eden Prairie, MN) of electronic health records and administrative claims data to assess AS use for patients tested with a 17-gene Genomic Prostate Score™ (GPS; Genomic Health, Redwood City, CA) assay and/or prostate magnetic resonance imaging (MRI).

Magnetic resonance imaging (MRI)-guided transurethral ultrasound ablation (TULSA) is an emerging method for treatment of localized prostate cancer (PCa). TULSA-related subacute MRI findings have not been previously characterized.

The aim of this study was to evaluate the additional value of magnetic resonance imaging-targeted biopsy (MRI-TB) to standard transrectal ultrasound-guided biopsy (SB) for detection of clinically significant prostate cancer (PCa).

To assess adoption of pre-biopsy prostate MRI in the United States and evaluate factors associated with MRI-Bx use. Prior reports have shown improved cancer detection with magnetic resonance image-guided prostate biopsies (MRI-Bx) vs.

Interest in an ultrasound-mediated delivery system for effective T1 -MRI of prostate cancer without adverse effects has steadily increased.

To develop an ultrasound-responsive dual-modal ultrasound (US)/T1 -MRI contrast agent for efficient diagnosis of prostate cancer cells overexpressing prostate-specific membrane antigen (PSMA) and assess their potential.

The use of a magnetic resonance imaging (MRI)-directed diagnostic pathway in men at first prostate cancer work-up has been introduced within European prostate cancer guidelines. Differences in MRI-directed pathway yields need elaboration.

Background and Aims: Laser vaporization of the prostate is expected as a less invasive treatment for benign prostatic hyperplasia (BPH), via the photothermal effect. In order to develop safer and more effective laser vaporization of the prostate, it is essential to set optimal irradiation parameters based on quantitative evaluation of temperature distribution and thermally denatured depth in prostate tissue.

To evaluate the relationship between the apparent diffusion coefficient (ADC) value for bladder cancer and the recurrence/progression risk of post-transurethral resection (TUR).

Forty-one patients with initial and non-muscle-invasive bladder cancer underwent MRI from 2009 to 2012.

The PRECISION trial provides level 1 evidence supporting prebiopsy multiparametric magnetic resonance imaging (mpMRI) followed by targeted biopsy only when mpMRI is abnormal [1]. This approach reduced over-detection of low-grade cancer while increasing detection of clinically significant cancer (CSC).

in men with suspicion of prostate cancer (PCa), the standard for cancer detection is trans-rectal ultrasound guided (TRUS) 10-12-core systematic biopsy (SB). Performing a targeted biopsy (TB) only strategy, using MRI-TRUS image registration, is gaining in popularity.

There is a lack of evidence on the ability of magnetic resonance imaging (MRI) of the prostate to detect clinically significant prostate cancer (csPCa) in young patients.

We hypothesised that the diagnostic performance of MRI for csPCa varies according to patient's age.

To evaluate the role of free-hand transperineal targeted prostate biopsy using multiparametric magnetic resonance imaging-transrectal ultrasound (mpMRI-TRUS) fusion in Chinese men with repeated biopsy.

PURPOSE - To assess the performance of prospectively assigned MRI-based Likert scale scores for detection of clinically significant prostate cancer and to analyze the pre-biopsy imaging variables associated with increased cancer detection using targeted MRI-TRUS fusion biopsy.

The 2019 European guidelines for prostate cancer recommend to omit biopsy when multiparametric magnetic resonance imaging (mpMRI) of the prostate shows no significant lesions (i.e. PI-RADS ≤2) and clinical suspicion of prostate cancer is low.

To investigate whether presence of multifocality on multi-parametric magnetic resonance imaging (mpMRI) would increase the likelihood of detecting clinically-significant prostate cancer (csPCa) in a PI-RADS 4 lesion.

To explore the morphological and functional characteristics of prostatic arterial embolization (PAE) in a canine model of benign prostatic hyperplasia (BPH) with 3T multiparametric magnetic resonance imaging (mp-MRI) and whole-mount step-section pathology correlation.

In the recent years, prostate cancer was the most commonly diagnosed cancer in men. Currently secure diagnosis confirmation is done by a transrectal biopsy and following histopathological examination.

To perform a diagnostic test accuracy (DTA) systematic review (SR) and meta-analysis comparing multiparametric (DWI, T2WI, and DCE) magnetic resonance imaging (mpMRI) and biparametric (DWI and T2WI) MRI (bpMRI) in detecting prostate cancer (PC) in treatment-naïve patients.

(1) To investigate whether a contrast-free biparametric MRI (bp-MRI) including T2-weighted images (T2W) and diffusion-weighted images (DWI) can be considered an accurate alternative to the standard multiparametric MRI (mp-MRI), consisting of T2, DWI, and dynamic contrast-enhanced (DCE) imaging for the muscle-invasiveness assessment of bladder cancer (BC), and (2) to evaluate how the diagnostic performance of differently experienced readers is affected according to the type of MRI protocol.

Multiparametric testicular ultrasound and magnetic resonance imaging (MRI) findings were analyzed in a series of 10 infertile asymptomatic men presenting with pathologically confirmed burned-out testicular tumors.

To evaluate the clinical dilemma of men with surgical indication due to benign prostatic enlargement (BPE) and concomitant elevated PSA, we analysed if multiparametric magnetic resonance imaging (mpMRI) could safely prescind the prostate biopsy.

We aimed to evaluate whether pelvic magnetic resonance imaging (MRI) could play a role in better assessing chronic pelvic pain syndrome. We evaluated 44 male patients (median 41 aged) with a clinical history of painful pelvic symptoms, lasting for at least three of the previous 6 months, associated with urinary, anorectal and sexual disorders in the absence of bacterial prostate infection.

The purpose of the study is to differentiate granulomatous prostatitis (GP) from high-grade prostate cancer (PCa) based on clinical findings and imaging characteristics on multiparametric MRI (MP-MRI).