نتایج جستجو برای: multiparametric mri
تعداد نتایج: 108152 فیلتر نتایج به سال:
Background : Comprehensive treatment of locally advanced cervical cancer (CC) requires the use informative diagnostic methods to assess tumor size, extent and other factors that determine prognosis disease. Purpose Determination opportunities multiparametric magnetic resonance imaging (mpMRI) in visualization residual assessment main prognostic patients with stage IB2-IIB (FIGO) after neoadjuva...
PURPOSE To establish a preoperative decision model for accurate indication of systemic therapy in early-stage breast cancer using multiparametric MRI at 7-tesla field strength. MATERIALS AND METHODS Patients eligible for breast-conserving therapy were consecutively included. Patients underwent conventional diagnostic workup and one preoperative multiparametric 7-tesla breast MRI. The postoper...
Abstract Objectives To develop and validate an artificial intelligence algorithm to decide on the necessity of dynamic contrast-enhanced sequences (DCE) in prostate MRI. Methods This study was approved by institutional review board requirement for study-specific informed consent waived. A convolutional neural network (CNN) developed 300 MRI examinations. Consensus two expert readers DCE acted a...
Multiparametric magnetic resonance imaging (mp-MRI) has shown promising results in diagnosis, localization, risk stratification and staging of clinically significant prostate cancer, and targeting or guiding prostate biopsy. mp-MRI consists of T2-weighted imaging (T2WI) combined with several functional sequences including diffusion-weighted imaging (DWI), perfusion or dynamic contrast-enhanced ...
Prebiopsy multiparametric prostate MRI (mp-MRI), followed by transrectal ultrasound-guided (TRUS-G) target biopsies (TB) of the prostate is a key combination for the diagnosis of clinically significant prostate cancers (CSPCa), to avoid prostate cancer (PCa) overtreatment. Several techniques are available for guiding TB to the suspicious mp-MRI targets, but the simplest, cheapest, and easiest t...
Abstract Background A retrospective study was conducted on 71 consecutive patients with suspected prostate cancer (PCa) a mean age of 56 years and underwent mp-MRI the at 3 Tesla MRI. Two readers recognized all prostatic lesions, each lesion had score according to Prostate Imaging–Reporting Data System version 2 (PI-RADS-v2). Purpose To evaluate interobserver agreement PI-RADS-v2 in characteriz...
PURPOSE To flesh out the ESUR guidelines for the standardized interpretation of multiparametric magnetic resonance imaging (mMRI) for the detection of prostate cancer and to present a graphic reporting scheme for improved communication of findings to urologists. MATERIALS AND METHODS The ESUR has recently published a structured reporting system for mMRI of the prostate (PI-RADS). This system ...
The purpose of this study is to evaluate the ability of quantitative magnetic resonance imaging (MRI) to discriminate between skin biopsies from individuals with osteogenesis imperfecta (OI) and skin biopsies from individuals without OI. Skin biopsies from nine controls (unaffected) and nine OI patients were imaged to generate maps of five separate MR parameters, T1, T2, km, MTR and ADC. Parame...
The clinical suspicion of local recurrence of prostate cancer after radical treatment is based on the onset of biochemical failure. The use of multiparametric magnetic resonance imaging (MRI) for prostate cancer has increased over recent years, mainly for detection, staging, and active surveillance. However, suspicion of recurrence in the set of biochemical failure is becoming a significant rea...
Mouse models of Alzheimer's disease have served as valuable tools for investigating pathogenic mechanisms relating to neurodegeneration, including tau-mediated and neurofibrillary tangle pathology-a major hallmark of the disease. In this work, we have used multiparametric magnetic resonance imaging (MRI) in a longitudinal study of neurodegeneration in the rTg4510 mouse model of tauopathy, a sub...
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