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Helical CT: clinical performance and imaging strategies.
Foley WD, Oneson SR.
Department of Radiology, John L. Doyne Hospital, Medical College of Wisconsin, Milwaukee 53226.
Radiographics. 1994 Jul;14(4):894-904
For nonelectron beam systems, scan speed and image quality have reached a relative plateau of performance. Helical CT makes rapid coverage of the z axis possible, allowing scanning to occur during the optimal phase of vascular and organ enhancement. With the split breath-hold variable-mode approach, extended helical coverage across multiple anatomic regions is possible. The technique adds flexibility in choice of collimation, milliamperage, and breath-hold interval. It is easily tolerated by patients and reproducible, and the intersegment delays produce less heat loading on the x-ray tube.
Posted via PubMed for educational and discussion purposes only.
Link to PubMed Reference
Department of Radiology, John L. Doyne Hospital, Medical College of Wisconsin, Milwaukee 53226.
Radiographics. 1994 Jul;14(4):894-904
For nonelectron beam systems, scan speed and image quality have reached a relative plateau of performance. Helical CT makes rapid coverage of the z axis possible, allowing scanning to occur during the optimal phase of vascular and organ enhancement. With the split breath-hold variable-mode approach, extended helical coverage across multiple anatomic regions is possible. The technique adds flexibility in choice of collimation, milliamperage, and breath-hold interval. It is easily tolerated by patients and reproducible, and the intersegment delays produce less heat loading on the x-ray tube.
Posted via PubMed for educational and discussion purposes only.
Link to PubMed Reference
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