Skull base osteomyelitis (SBO) is a rare clinical presentation and usually occurs as a complication of trauma or sinusitis. A 5-year-old child presented to the emergency department with a three-week history of fever associated with drowsiness and left parietal headache, and a week's history of swelling on the left frontoparietal soft tissue. He had suffered a penetrating scalp injury four month...

Aim: To evaluate the radio-opacity of fish bones from a number of species using digital radiography in order to establish whether advances in acquisition and interpretative techniques have affected the radiologist’s ability to detect impacted fish bones. Methods: The bones from six species of fish commonly consumed in the United Kingdom were radiographed using a soft tissue neck phantom by mean...

Extensive modeling of the seeding of plasma-based soft X-ray lasers is reported in this article. Seminal experiments on amplification in plasmas created from solids have been studied in detail and explained. Using a transient collisional excitation scheme, we show that a 18 μJ, 80 fs fully coherent pulse is achievable by using plasmas pumped by a compact 10 Hz laser. We demonstrate that direct ...

CASE REPORT A 49 year-old female presented with a mass the size of a large grapefruit in the right gleno-humeral region. She described a constant ache from the lesion which had been present for about three months. There was some limitation of movement at the shoulder joint. There was no evidence of inflammation or lymphadenopathy. X-ray showed a large low density soft tissue mass in keeping wit...

BACKGROUND Soft tissue defects of the posterior heel of the foot present difficult reconstructive problems. This paper reports the authors' early experience of five patients treated with a lateral calcaneal artery adipofascial flap. METHODS Between 2003 and 2007, five patients (3 males and 2 females) with soft-tissue defects over the posterior heel underwent a reconstruction using a lateral c...

We present simultaneous infrared and X-ray observations of the Galactic microquasar GRS 1915+105 using the Palomar 5 m telescope and Rossi X-Ray Timing Explorer on 1998 July 10 UT. Over the course of 5 hr, we observed six faint infrared (IR) flares with peak amplitudes of approximately 0.3-0.6 mJy and durations of approximately 500-600 s. These flares are associated with X-ray soft-dip/soft-fla...

X-ray microtomography is a nondestructive, three-dimensional inspection technique applied across vast range of fields and disciplines, ranging from research to industrial, encompassing engineering, biology, medical research. Phase-contrast imaging extends the domain application x-ray classes samples that exhibit weak attenuation, thus appearing with poor contrast in standard imaging. Notable ex...

We present a detailed analysis of the complex soft X-ray spectrum of NGC 4151 measured by the RGS instruments aboard XMM-Newton. The XMM-Newton RGS spectra demonstrate that the soft X-ray emission is extremely rich in X-ray emission lines and radiative recombination continua (RRC), with no clear evidence for any underlying continuum emission. Line emission, and the associated RRC, are clearly d...

X-ray phase-contrast imaging based on grating interferometry has become a common method due to its superior contrast in biological soft tissue imaging. The high sensitivity relies on the high-aspect ratio structures of the planar gratings, which prohibit the large field of view applications with a diverging X-ray source. Curved gratings allow a high X-ray flux for a wider angular range, but the...

BACKGROUND A patient with a history of cancer in remission and congestive heart failure with no acute symptoms presented for a follow-up echocardiogram. The scan revealed a new echodense mass filling his right ventricular apex. An endomyocardial biopsy guided by x-ray fused with magnetic resonance (MR) imaging (XFM) was performed. This case report outlines the steps of XFM image preparation inv...