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Since the clinical introduction of computed tomography (CT) in the mid 1970s, several technological and clinical advances have improved image quality and reduced scanning time. During the past decade technological breakthroughs have ushered in an exciting advance in medical imaging : spiral CT. Spiral CT technology with its high speed and volumetric data acquisition has spawned a new vascular imaging technique - spiral CT angiography which is noninvasive, accurate, faster and less expensive than conventional angiography. We report our experience of having performed 100 CT angiographies with 3-D reconstructions of various vascular territories of the body. Details of technique of data acquisition, methods of 3-D reconstruction and clinical applications are discussed. |
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