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2017
X-ray computed tomography (CT) is a medical imaging method, where the patient is placed on the CT table and an x-ray tube rotates around the body and sends x-rays through the body. Those x-rays experience a varying attenuation along their way depending on the body part they are transversing.
Erich Sorantin, Sabine Weissensteiner
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X-ray computed tomography (CT) is a medical imaging method, where the patient is placed on the CT table and an x-ray tube rotates around the body and sends x-rays through the body. Those x-rays experience a varying attenuation along their way depending on the body part they are transversing.
Erich Sorantin, Sabine Weissensteiner
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Predicting Postoperative FEV1 Using Spiral Computed Tomography
Academic Radiology, 2010Lung resection for primary bronchogenic carcinoma in the setting of chronic obstructive pulmonary disease often requires a detailed assessment of lung function to avoid perioperative complications and long-term disability. The aim of this study was to test the hypothesis that a novel technique of spiral computed tomographic (CT) subtraction imaging ...
Cory M, Yamashita +9 more
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System performance of multislice spiral computed tomography
IEEE Engineering in Medicine and Biology Magazine, 2000Multislice spiral CT offers many new possibilities for clinical CT imaging. Drastically increased scan speeds and z-resolution, respectively, as well as applications such as cardiac CT that have become feasible for the first time in routine clinical use.
T O, Fuchs +2 more
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Spiral computed tomography for bilioenteric anastomotic stricture
Pediatric Surgery International, 1998Spiral computed tomography scanning after intravenous cholangiography (IVC-SCT) was used to assess the anatomy of the biliary tree and anastomosis in a 7-year-old girl with recurrent cholangitis 5 years after surgical excision of a choledochal cyst.
Y, Hamada, M, Sato, K, Takada, K, Hioki
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COMPUTATION OF RELATIVE ROTATIONS IN SPIRAL HORSESHOES
International Journal of Bifurcation and Chaos, 1992An algorithm is presented for computing the relative rotations of orbits in a suspension of Smale horseshoes consisting of n stripes in spiral configuration. Bifurcational precedence relations in the creation of such horseshoes may thus be more readily determined. An application to a driven oscillator is discussed.
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[Defecography by spiral computed tomography].
La Radiologia medica, 1999We investigated the possible role of helical CT defecography in pelvic floor disorders by comparing our results with those of conventional defecography.Our series consisted of 90 patients, namely 62 women and 28 men, ranging in age 24-82 years. They were all submitted to conventional defecography, and 18 questionable cases were also studied with ...
Ferrando R +7 more
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Spiral: Automated Computing for Linear Transforms
AIP Conference Proceedings, 2010Writing fast software has become extraordinarily difficult. For optimal performance, programs and their underlying algorithms have to be adapted to take full advantage of the platform’s parallelism, memory hierarchy, and available instruction set. To make things worse, the best implementations are often platform‐dependent and platforms are constantly ...
Markus Püschel +3 more
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[Spiral (helical) computer tomography].
Casopis lekaru ceskych, 1998The introduction of spiral (helical) computed tomography (CT) has revolutionized the way established body CT examination are performed and has created new examinations as CT angiography. The production of overlapping images from single short X-ray exposure, the minimization of motion artefact and the suppression of respiratory misregistration have all ...
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Spiral computed tomography before and after cricothyroid approximation
Clinical Otolaryngology and Allied Sciences, 2000Cricothyroid approximation raises the vocal pitch by simulating the contraction of the cricothyroid muscle with sutures. The aim of this study was to determine the role of spiral computed tomography (CT) in patients scheduled for cricothyroid approximation.
D, Pickuth +5 more
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Image quality and dose in spiral computed tomography
European Radiology, 1996Image quality and dose produced by a spiral CT with various pitch values were investigated on the basis of test-object images and measurements of CT dose indexes. No major difference in image quality or dose was observed when comparing sequential and spiral mode acquisition with a pitch of one.
F R, Verdun +6 more
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