Complications of chronic sinusitis on orbital sonography and craniofacial computed tomography--a case report.

A 15-year-old boy without a previous history of sinusitis presented with life threatening complications from chronic pansinusitis. This report highlights the role of ultrasound and computed tomography (CT) in the diagnosis and management of occult sinusitis and its complications.

Abdominal ultrasonography in HIV/AIDS patients in southwestern Nigeria.

Background: Though the major target of the HIV-virus is the immune system, the frequency of abdominal disorders in HIV/AIDS patients has been reported to be second only to pulmonary disease. These abdominal manifestations may be on the increase as the use of antiretroviral therapy has increased life expectancy and improved quality of life. Ultrasonography is an easy to perform, non invasive, inexpensive and safe imaging technique that is invaluable in Africa where AIDS is most prevalent and where sophisticated diagnostic tools are not readily available.

Helical CT myelogram: the Ibadan initial experience.

To evaluate our initial experience with Helical Computed Tomography (CT) Myelogram in the investigation of spinal abnormalities. As late as 1980, CT was still regarded as unreliable compared with myelography however, the advent of slip-ring technology in the 1990s, in association with the use of more powerful computers and higher energy x-ray tubes allowed a process known as Helical CT. This revolutionized CT scanning allowing achievement of thinner slices in a single breath-hold.