Computerised tomography guided lumbar sympathectomy

Evaluation of lumbar sympathectomy.

L UMBAR SympatklCCtOIny iS a surgical procedure that is now well established as a valuable adjunct in the treatment of selected cases of peripheral arterial disease. Immediateiy following World War II there was much enthusiasm for sympathectomy and as a result many patients with peripheral vascular disease underwent this procedure. In the next few years reports indicating a relatively high perc...

Lumbar sympathectomy for peripheral arteriosclerosis.

Computerised Tomography (CT) Scans

Conventional CT scan the scan is taken slice by slice and after each slice the scan stops and moves down to the next slice eg, from the top of the abdomen down to the pelvis. This requires patients to hold their breath to avoid movement artefact. Spiral/helical CT scan this is a continuous scan which is taken in a spiral fashion. It is a much quicker process and the scanned images are contiguous.

Computerised tomography performance.

Generally, computerised tomography (CT) is an X-ray based non-destructive testing method that was developed for medical purposes in the seventies and introduced for industrial applications during the eighties. CT produces maps of the X-ray linear attenuation coefficient of an object’s interior; presented either as cross section images (two-dimensional CT) or as volume information (three-dimensi...

Computerised Tomography (CT) Scans

Conventional CT scan the scan is taken slice by slice and after each slice the scan stops and moves down to the next slice eg, from the top of the abdomen down to the pelvis. This requires patients to hold their breath to avoid movement artefact. Spiral/helical CT scan this is a continuous scan which is taken in a spiral fashion. It is a much quicker process and the scanned images are contiguous.