Spiral CT evaluation of deep venous thrombosis.

Spiral CT venography is a technical innovation in vascular imaging that can optimize vessel contrast in the deep venous system and, therefore, is an accurate diagnostic tool to detect deep venous thrombosis. Compared with conventional venography, the amount of contrast material can be reduced by 80%. While using spiral CT as the primary imaging technique for the detection of pulmonary embolism, the cause of embolism can be evaluated within a short period of additional imaging time without further patient mobilization. This review outlines fundamental techniques in spiral CT venography and summarizes our clinical experience at Vienna University Medical Center.

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