Spiral CT

spi·ral com·put·ed to·mog·ra·phy

computed tomography in which the x-ray tube continuously revolves around the patient, who is simultaneously moved longitudinally; computer interpolation allows reconstruction of standard transverse scans or images in any preferred plane.

Spiral CT

Also referred to as helical CT, this method allows for continuous 360-degree x-ray image capture.
References in periodicals archive ?
Due to the complex blood supply of the liver (30% from Hepatic artery and 70% from Portal vein) a triphasic spiral CT technique is developed to image the entire liver in arterial, portal, and delayed phases6.
A dual-phase contrast-enhanced spiral CT was performed immediately after the procedure to assess the immediate response after ablation and to screen for related complications.
Spiral CT scanning was conducted using a 64-row scanner (Siemens, Germany) (collimation = 64 x 1, slice thickness = 1 mm, pitch = 1:1, current = 120 kV with automatic mA adjustment, thin layers with three-dimensional image reconstruction).
CT axial plain scan and enhancement scan were performed on all the cases using SOMATOM sensation 16 spiral CT machine (SIEMENS Inc.
Duhamel, "Peripheral pulmonary arteries: optimization of the spiral CT acquisition protocol", Radiology, vol.
1,8) It offers high-end applications for surgery through real time 3D imaging, high frame rates of 30 frames per second(f/ s), and excellent image quality at low radiation exposure, which is 60-80 % less as compared to Spiral CT.
Spiral CT has made it possible to cover body regions so rapidly that the transient enhancement of vascular system following intravenous contract injection could be captured during one scan.
CT scans were done at 64 slice spiral CT scanner with IV contrast and slice thickness of 3mm.
10) spiral CT of the involved tooth was conducted in the present case.
Evaluation of the spiral CT scan revealed abnormal gas in the gallbladder fossa (figure 1 a), gas in the biliary tree, and distended loops of small bowel consistent with partial small bowel obstruction.
5 Tesla MRI, 16 slice spiral CT scanner, 4D ultra-sound-scanner and digital x-rays.
Celiac axis and common hepatic artery variations in 5002 patients: systematic analysis with spiral CT and DSA.