The goals of this meta-analysis were to assess the effectiveness of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in patients with prostate carcinoma (PCa) and to explore the risk profiles with the highest benefit. Systematic electronic searched were conducted in database. We used patient-based and biopsy-based pooled weighted estimates of the sensitivity, specificity, and a su...

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...

Purpose A DCE-MRI technique that can provide both high spatiotemporal resolution and whole-brain coverage for quantitative microvascular analysis is highly desirable but currently challenging to achieve. In this study, we sought develop validate a novel dual-temporal (DTR) DCE-MRI-based methodology deriving accurate, high-spatial parameters. Methods Dual injection DTR was performed composite hi...

methods in this research, we utilized the chaos theory and fractal analysis in the interpretation of breast tumors on dce-mri. this cross-sectional study was done at pardisnoor imaging center during years 2015 and 2016 in iran. our sample size was 18 mass lesions, which were randomly selected among patients with birad 3 and birad 4 classification by the expert radiologist. the analysis was perf...

Angiogenesis is a key step in the initiation and progression of an invasive breast cancer. High microvessel density by morphological characterization predicts metastasis poor survival women with cancers. However, morphologic subject to variability only can evaluate limited portion Consequently, Magnetic Resonance Imaging (MRI) currently being evaluated assess vascularity. Recently, through new ...

OBJECTIVE The purpose of our study was to investigate whether adding diffusion-weighted imaging (DWI) to dynamic contrast-enhanced MRI (DCE-MRI) could improve the positive predictive value (PPV) of breast MRI. MATERIALS AND METHODS The retrospective study included 70 women with 83 suspicious breast lesions on DCE-MRI (BI-RADS 4 or 5) who underwent subsequent biopsy. DWI was acquired during cl...

PURPOSE To assess the effectiveness of dynamic contrast-enhanced (DCE) T1- and T2-weighted magnetic resonance imaging (MRI) during the follow-up of patients with prostate cancer after undergoing external beam radiotherapy (EBRT) and to compare these imaging findings to pathological and transrectal ultrasound (TRUS) findings. MATERIALS AND METHODS In this retrospective study, the MRI findings ...

UNLABELLED In this study, we examined the in vivo relationship between functional tumor vasculature, determined by dynamic contrast-enhanced (DCE-) MRI, and tumor metabolism, determined by dynamic (18)F-FDG PET, during cytotoxic treatment of patients with colorectal liver metastases. METHODS Twenty-three patients underwent DCE-MRI (using gadolinium dimeglumine) and dynamic (18)F-FDG PET at ba...

HYPOTHESIS Dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) is a reliable and accurate method for monitoring primary tumor response in the breast and can be used as a surrogate to predict final axillary nodal status. DESIGN Retrospective study (October 1, 2004, through February 28, 2006) of 46 patients with clinically staged locally advanced breast cancer. SETTING Comprehens...

Introduction Dynamic Contrast Enhanced MRI (DCE-MRI) is recognized as an efficient diagnosis and prognostics tool in several lesions such as in solid cancers. However, the improvement of its quantification remains crucial. Among other questions, the signal to noise ratio (SNR) is known to be poor in DCE-MRI, yielding a low efficiency of the DCE-MRI to detect and characterize small o heterogeneo...