This paper focuses on the measurement of antenna radiation patterns when fully anechoic conditions are not available and, as consequence, some undesirable echoes are initially present in the measure. Two techniques are analyzed and compared, which -starting from data measured in the frequency domain -allow the echo contributions to be identified and the antenna radiation pattern to be retrieved...

Key words: continuous ambulatory peritoneal dialysis confirmed a massive left-sided pleural effusion (Figure 1a). The echocardiogram revealed concentric (CAPD); end-stage renal disease (ESRD); hydro-thorax; Tc-99m macroaggregated human albumin left ventricular hypertrophy with adequate global performance , and no pericardial effusion. The abdominal (MAA) peritoneal scintigraphy sonogram showed ...

Background Radial sampling is often used in dynamic CMR because it is robust to flow and motion, supports short echo times, and provides a diffuse aliasing pattern. One drawback is that current implementations do not support anisotropic field-of-view (FOV). Larson et al. [1] previously provided a simple scheme for supporting anisotropic FOV in static radial imaging. We extend the approach to go...

PURPOSE To investigate the basis for multifocal hypointense lesions within the brain as identified on T2*-weighted gradient-echo MR imaging in patients with no known or presumed cause of these lesions. METHODS In the first of a two-part study design, we retrospectively reviewed a case series of 38 patients whose gradient-echo MR images showed multiple hypointense lesions within the brain pare...