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spiral x ray

Sep 03, 2021 The VR-Spiral concept and its application to practical spectrometer design are described in detail. This concept is then used to design a spectrometer for an extreme extended x-ray absorption fine structure experiment at the National Ignition Facility looking at the Pb L 3 absorption edge at 13.0352 keV. The expected performance of this VR-Spiral spectrometer, both in terms of energy resolution

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  • Aligning anatomical structure from spiral X-ray computed
    Aligning anatomical structure from spiral X-ray computed

    CONCLUSION: Anatomical data from spiral X-ray computed tomography scanning can be reliably co-registered with pressure data. RELEVANCE: The ability to match bony anatomy to pressure data allows better understanding of structural factors contributing to peak pressure, provides precise information for three-dimensional modeling of the foot, and can improve orthotic fabrication and modification aimed at

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  • Spiral fracture | Radiology Reference Article
    Spiral fracture | Radiology Reference Article

    Spiral fracture. Dr Mohammad Taghi Niknejad and Dr Jeremy Jones et al. Spiral fractures are complete fractures of long bones that result from a rotational force applied to the bone. Spiral fractures are usually the result of high energy trauma and are likely to be associated with displacement

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  • National Lung Screening Trial (NLST) - National Cancer
    National Lung Screening Trial (NLST) - National Cancer

    The National Lung Screening Trial (NLST) compared two ways of detecting lung cancer: low-dose helical computed tomography (CT)—often referred to as spiral CT—and standard chest X-ray. Helical CT uses X-rays to obtain a multiple-image scan of the entire chest, while a standard chest X-ray produces a single image of the whole chest in which anatomic structures overlie one another

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  • Spiral (helical) CT. | Radiology
    Spiral (helical) CT. | Radiology

    Dec 01, 1993 Spiral (helical) computed tomography (CT) involves continuous patient translation during x-ray source rotation and data acquisition. As a result, a volume data set is obtained in a relatively short period of time. For chest or abdominal scanning, an entire examination can be completed in a single breath hold of the patient or in several successive short breath holds. The data volume may be

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  • Spiral Fracture - an overview | ScienceDirect Topics
    Spiral Fracture - an overview | ScienceDirect Topics

    Spiral fractures have two distinct types of fracture lines visible on a projectional x-ray: a line spiraling around the entire bone and a longitudinal line linking the proximal and distal portions of the spiral. The angle of ascent may vary between 20 and 90 but is never transverse

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  • Comparison between conventional and spiral CT in patients
    Comparison between conventional and spiral CT in patients

    To determine the usefulness of spiral CT in the detection of hypervascular hepatic lesions, we compared conventional contrast enhanced CT (CECT) with whole liver dynamic scanning during the artery-dominant phase by spiral CT (SDCT), using hypervascular hepatocellular carcinoma (HCC) as a model. Twen

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  • Spiral fracture of the tibia | Radiology Case
    Spiral fracture of the tibia | Radiology Case

    X-ray. Loading images... AP Spiral fracture of the tibial shaft. Normal fibula. Case Discussion. Spiral fractures typically occur in children, with the tibia being a common site. The name derived from the shape of the fracture along the diaphysis of a long bone. 1 article features images from this case. Spiral fracture; 5 public playlist

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  • Introduction to Trauma X-ray - Fracture description
    Introduction to Trauma X-ray - Fracture description

    A fracture of a short, flat or irregular bone requires a description determined by its direction through the bone. Useful terms include - horizontal, vertical, coronal, sagittal and axial. Often a fracture can be seen to pass in more than one direction, in which case a more detailed description may be needed

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  • What is a spiral fracture? Causes and treatment
    What is a spiral fracture? Causes and treatment

    Aug 30, 2017 A spiral fracture is a type of bone fracture. It occurs when a long bone is twisted with force. It will appear similar to a corkscrew on an X-ray. This article explains the potential symptoms, how

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  • Spiral fracture - tibia | Radiology Case
    Spiral fracture - tibia | Radiology Case

    From the case: Spiral fracture - tibia. X-ray. Lateral. Loading Stack -. 0 images remaining. Frontal. Subtle lucent line involving the distal tibial diaphysis, that appears more obvious at the lateral view. The fibula appears normal. No evidence of ankle dislocation

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  • National Lung Screening Trial: Questions and Answers
    National Lung Screening Trial: Questions and Answers

    A chest X-ray produces a picture of the organs within a person's chest. Throughout the procedure, the person stands with the chest pressed to a photographic plate, hands on hips and elbows pushed forward. During a single, sub-second breath-hold, a beam of X-rays passes through the person's chest to the photographic plate, which creates an image

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  • Spiral Fracture: Healing Time, Tibia, and Fibula
    Spiral Fracture: Healing Time, Tibia, and Fibula

    Aug 16, 2017 A spiral fracture, also known as torsion fracture, is a type of complete fracture. It occurs due to a rotational, or twisting, force. Complete fractures are categorized based on the way the bone

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