Results 141 to 150 of about 40,540 (198)
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Synchronized Multi-Helical Computed Tomography
2021 2nd International Conference on Control, Robotics and Intelligent System, 2021Limited by the field of view (FOV), most existed X-ray industrial computed tomography (ICT) techniques require multi scans for stitching projections when detecting long objects, which significantly increases the scanning time. In addition, these techniques usually adopt the one-by-one scanning mode that further reduces the scanning efficiency ...
Changsheng Zhang, Guogang Zhu, Jian Fu
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Helical Computed Tomography for Abdominal Imaging
World Journal of Surgery, 1996AbstractSignificant technologic advances have taken place in computed tomography (CT). Current‐generation conventional CT scanners are able to image a slice of tissue in as little as 2 to 3 seconds and can acquire several consecutive images. Although it is a substantial improvement from the CT of 5 years ago, there remain practical limits to the ...
R M, Krasny, D S, Lu
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Helical computed tomography of renal lesions
Current Opinion in Urology, 1999Helical computed tomography is a new technique that acquires a volumetric data set of both kidneys within a single breath-hold. It has proved to be superior to conventional computed tomography. Multiphasic helical computed tomography after the administration of contrast material shows advantages concerning the detection and characterization of renal ...
L, Kopka +3 more
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Bronchial arterial imaging using helical computed tomography
Pulmonary Pharmacology & Therapeutics, 2007The bronchial arteries, which provide the systemic arterial supply to the lungs, are involved in a variety of disease processes in humans, including congenital disorders, infection, and pulmonary thromboembolism. In these conditions, the bronchial arteries hypertrophy and bronchial blood flow increases.
Paula, Carvalho +2 more
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Liver Imaging with Multidetector Helical Computed Tomography
Journal of Computer Assisted Tomography, 2003The speed and flexibility of multidetector computed tomography (MDCT) have led to improvements in liver imaging, particularly related to the detection and characterization of focal lesions. This report discusses the different phase of liver enhancement following the bolus administration of iodinated contrast material, and the enhancement pattern of ...
Rendon C, Nelson, Audrey L, Spielmann
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Tracheal agenesis: evaluation by helical computed tomography
Pediatric Radiology, 2000We present a newborn infant with type II tracheal agenesis. Helical CT was performed and confirmed the diagnosis. Retrospective coronal and sagittal multiplanar reconstructions clearly demonstrated the complex anatomy of the malformation. The absence of a significant portion of healthy trachea did not present any possibility for surgical correction.
W, Pumberger +3 more
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Pancreatic Carcinoma: Applications for Helical Computed Tomography
Endoscopy, 1997Helical computed tomography (CT) represents a significant technical improvement over conventional (incremental) CT. This noninvasive imaging technique is now routinely used in the evaluation of patients with suspected pancreatic cancer. This paper focuses on the topics of CT technique (scanning parameters, use of intravenous contrast media, use of oral
L, Van Hoe, A L, Baert
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Stability Estimates for Helical Computer Tomography
Journal of Fourier Analysis and Applications, 2005zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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STOMACH WALL EVALUATION USING HELICAL HYDRO‐COMPUTED TOMOGRAPHY
Veterinary Radiology & Ultrasound, 2012In helical hydro‐computed tomography (helical hydro‐CT), water is used as a neutral luminal contrast medium together with intravenous iodine contrast medium for the diagnosis and staging of human gastric neoplasia. We evaluated the feasibility of helical hydro‐CT in 11 healthy animals (nine dogs and two cats).
Rossella, Terragni +7 more
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Helical differential X-ray phase-contrast computed tomography
Physica Medica, 2014We report on the first experimental results of helical differential phase-contrast computed tomography (helical DPC-CT) with a laboratory X-ray tube source and a Talbot-Lau grating interferometer. The results experimentally verify the feasibility of helical data acquisition and reconstruction in phase-contrast imaging, in analogy to its use in clinical
Jian Fu +9 more
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