In this paper, we present a novel method for fast lossy or lossless compression and decompression of regular height fields. The method is suitable for SIMD parallel implementation and thus inherently suitable for modern GPU architectures. Lossy compression is achieved by approximating the height field with a set of quadratic Bezier surfaces. In addition, lossless compression is achieved by supe...

BACKGROUND United Kingdom Armed Forces personnel currently undertake arduous operational tours that can make homecoming psychologically challenging. To assist them in this transition, they undergo a process of "decompression" before returning to their base unit. This article reports their subjective impression of the process. METHODS Personnel completed a brief survey at the end of the decomp...

PURPOSE To compare the results of screw fixation plus capsular decompression versus screw fixation alone for managing intracapsular hip fractures. METHODS Of 201 patients with intracapsular hip fractures, 99 underwent screw fixation with capsular decompression (capsular decompression group) and 102 underwent screw fixation alone (control group). The incidence and time to development of avascu...

The authors review the relevant anatomy and provide technical tips for endoscopic decompression of the cubital tunnel. Cubital tunnel syndrome is the second most common nerve compression syndrome in the upper extremity. Until recently, surgeons focused on open decompression combined with submuscular or subcutaneous transposition of the nerve. Decompression was usually limited to the region of t...

ED FROM Nelson R, Edwards S, Tse B. Prophylactic nasogastric decompression after abdominal surgery. Cochrane Database Syst Rev 2007;(3):CD004929. Correspondence to: Prof R Nelson, Northern General Hospital, Sheffield, UK; [email protected]; [email protected] Source of funding: no external funding. c Clinical impact ratings: General surgery 6/7; Perioperative 7/7 Routine nasogastric t...

PURPOSE To evaluate the clinical outcomes of balanced deep lateral and medial orbital wall decompression and to estimate surgical effects using computed tomography (CT) images in Korean patients with thyroid-associated ophthalmopathy (TAO). METHODS Retrospective chart review was conducted in TAO patients with exophthalmos who underwent balanced deep lateral and medial orbital wall decompressi...

Degenerative cervical myelopathy (DCM) is the most common progressive nontraumatic spinal cord injury. The most common recommended treatment is surgical decompression, although the optimal timing of intervention is an area of ongoing debate. The primary objective of this study was to assess whether a delay in decompression could influence the extent of ischemia-reperfusion injury and alter the ...

Twenty three patients with traumatic optic neuropathy were managed by medical and surgical treatment as follows. High dose intravenous steroids were initiated in all patients. If visions did not improve significantly after 24 to 48 hours decompression of an optic nerve sheath haematoma by medial orbitotomy and neurosurgical decompression of the optic canal were considered based on computed tomo...

The records of all patients undergoing optic nerve sheath decompression for visual failure in chronic raised intracranial pressure performed over a 15 year period have been reviewed. The aim was to study the visual outcome and relation to any shunting procedures. Fourteen patients (20 eyes) were identified in whom follow up information of at least one year was available. Eleven patients had ben...