High-performance low field MRI enables visualization of persistent pulmonary damage after COVID-19.

The outbreak of coronavirus disease 2019 (COVID-19) with the origin of the spread assumed to be located in Wuhan, China, began in December 2019, and is continuing until now. With the COVID-19 pandemic showing a progressive spread throughout the countries of the world, there is emerging interest for the potential long-term consequences of suffering from a COVID-19 pneumonia. Imaging plays a central role in the diagnosis and management of COVID-19 pneumonia, with chest X-ray examinations and computed tomography (CT) being undoubtedly the modalities most widely used, allowing for a fast and sensitive detection of infiltration patterns associated with COVID-19 pneumonia.

Fast Abdominal Contrast-Enhanced Imaging With High Parallel-Imaging Factors Using a 60-Channel Receiver Coil Setup: Comparison With The Standard Coil Setup.

Purpose: The aim of this study was to assess a novel 60-channel receiver body coil (B60) setup for accelerated contrast-enhanced abdominal magnetic resonance imaging (MR) imaging with respect to signal-to-noise ratio (SNR) and image quality using high parallel-imaging technique (PAT) factors in comparison to a standard 30-channel coil setup.

Methods: All imaging data were acquired on a 3 T MR scanner using a novel B60 receiver coil setup in comparison to a standard 30-channel setup serving as reference standard. Phantom measurements were performed to systematically evaluate SNR and geometry factor performance in an ex vivo setting.

Understanding 3D TSE Sequences: Advantages, Disadvantages, and Application in MSK Imaging.

Three-dimensional (3D) turbo-spin echo (TSE) sequences have outgrown the stage of mere sequence optimization and by now are clinically applicable. Image blurring and acquisition times have been reduced, and contrast for T1-, T2-, and moderately T2-weighted (or intermediate-weighted) fat-suppressed variants has been optimized. Data on sound-to-noise ratio efficiency and contrast are available for moderately T2-weighted fat-saturated sequence protocols.

Whole-body diffusion-weighted MRI with apparent diffusion coefficient mapping for early response monitoring in multiple myeloma: preliminary results.

Objective: The purpose of our study was to prospectively assess the feasibility of whole-body diffusion-weighted imaging (DWI) for short-term evaluation of response to treatment in multiple myeloma patients using a single-shot echo-planar imaging DWI sequence with a Stejskal-Tanner diffusion encoding scheme and spectral fat suppression.

Subjects And Methods: Twelve consecutive patients (nine men and three women; mean age, 61.4 years; age range, 54-79 years) underwent whole-body DWI (b = 50, 400, and 800 s/mm(2)) both at baseline and 3 weeks (mean, 23 days) after onset of therapy.

Diffusion tensor imaging (DTI) of the kidney at 3 tesla-feasibility, protocol evaluation and comparison to 1.5 Tesla.

Purpose: The purpose of this study was to evaluate the feasibility of diffusion tensor imaging of the kidney at a field strength of 3T. We assessed fractional anisotropy (FA) and apparent diffusion coefficients (ADC) of various acquisition protocols and determined the reproducibility of these measurements. FA, ADC, signal-to-noise ratios (SNR), and contrast-to-noise ratios (CNR) were compared with those acquired at 1.