PURPOSE To assess the utility of apparent diffusion coefficient (ADC) maps for the assessment of patients with advanced degenerative lumbar spine disease and describe characteristic features of ADC maps in various degenerative lumbar spinal conditions. METHODS T1-weighted, T2-weighted and diffusion weighted (DWI) MR images of 100 consecutive patients admitted to the spinal surgery service wer...

Introduction Diffusion weighted (DW) MRI—and in particular the apparent diffusion coefficient (ADC)—shows potential for improving the characterization and classification of enhancing breast lesions identified using dynamic contrast-enhanced (DCE) MRI. Nevertheless, to date there does not exist a well defined and objective method for computing a representative ADC value for such lesions. Typical...

Introduction: Diffusion weighted imaging (DWI) has recently been considered a potential tool for the investigation of head and neck cancer. This technique has been used both for the characterization of tumors and the monitoring of their treatment response after radiotherapy and chemotherapy. Application of this technique relies on the measurement of the apparent diffusion coefficient (ADC) whic...

The aim of the present study was to compare the relationship of morphologically defined non-bulging/herniated, bulging and herniated intervertebral lumbar discs with quantitative apparent diffusion coefficient (ADC). Thirty-two healthy volunteers and 28 patients with back pain or sciatica were examined by MRI. All intervertebral lumbar discs from L1 to S1 were classified according to morphologi...

AIM To describe the appearance of small solid renal lesions (≤3 cm) on diffusion-weighted magnetic resonance imaging (MRI) and to determine whether ADC measurements may help to differentiate benign from malignant small solid renal masses. METHODS AND MATERIALS Thirty-five patients with 47 small renal masses (23 malignant, 24 benign) who underwent 3 T MRI of the kidney using diffusion-weighted...

BACKGROUND AND PURPOSE Serial study of such MR parameters as diffusion-weighted imaging (DWI), apparent diffusion coefficient (ADC), ADC with fluid-attenuated inversion recovery (ADC(FLAIR)), and T2-weighted imaging may provide information on the pathophysiological mechanisms of acute ischemic stroke. Our goals were to establish the natural evolution of MR signal intensity characteristics of ac...

(DW-MRI) is a method where the signal required to produce a MRI image is determined by the " mobility of water ". Diffusivity measurements have multiple components related to tissue cellularity and organization, integrity of the cell membranes, extracellular space tortuosity and perfusion (1). Until recent years, main limitation for the use of DWI in the body area wa the artefacts originating f...

BACKGROUND AND PURPOSE 2D-ss-IMIV-DWEPI is an ss-DWEPI with greatly reduced geometric distortion. The purposes of this paper are to 1) evaluate of the utility of 2D-ss-IMIV-DWEPI for high-resolution neck LN imaging; 2) determine whether 2D-ss-IMIV-DWEPI can depict normal LN hilum; and 3) evaluate whether the inclusion of LN hilum within ROIs affects the measured LN ADC. MATERIALS AND METHODS ...

In the rapidly developing Internet of Things (IoT) applications, how to achieve rapid identification massive devices and secure communication wireless data based on low cost power consumption is key problem be solved urgently. This paper proposes a novel true random number generator (TRNG) ADC nonlinear effect chaotic map, which can implemented by traditional processors with built-in ADCs, such...