نتایج جستجو برای: x radiography

تعداد نتایج: 632910  

Journal: :Heritage Science 2022

Abstract The structure of five rare filigree spheres from a seventeenth century shipwreck was examined in order to unravel their condition, manufacturing process and function. This study focuses on the application non-invasive imaging techniques: optical microscopy, X-radiography, X-ray micro-computed tomography neutron computed tomography. A valuation different aspects applied techniques made,...

2013
J. F. Seely

A new spectroscopic technique for the measurement of the sizes of hard X-ray sources produced by the irradiation of solid-density targets by intense laser radiation is discussed. The technique is based on the source broadening of K shell spectral lines from targets irradiated by intense picosecond laser pulses. The spectra are recorded by a modified Cauchois type spectrometer, where the detecto...

2016
Hamid Kamalipour Sedigheh Ahmadi Karmella Kamali Alireza Moaref Masih Shafa Parsa Kamalipour

BACKGROUND Chest radiography after central venous catheter (CVC) insertion is the main method of verifying the catheter location. Despite the widespread use of radiography for detecting catheter position, x-ray may not always be readily available, especially in the operating room. OBJECTIVES We aimed to compare contrast-enhanced ultrasonography (CEUS) and chest radiography for detecting the c...

Journal: :International endodontic journal 2011
C Durack S Patel J Davies R Wilson F Mannocci

AIM To compare in an ex vivo model the ability of digital intraoral radiography and cone beam computed tomography (CBCT) to detect simulated external inflammatory root resorption lesions, and to investigate the effect of altering the degree of rotation of the CBCT scanners X-ray source and imaging detector on the ability to detect the same lesions. METHODOLOGY Small and large simulated extern...

Journal: :Journal of pediatric surgery 2009
Peter F Ehrlich Christopher Wee Robert Drongowski Ankur R Rana

PURPOSE The Canadian C-spine (cervical spine) Rule (CCR) and the National Emergency X-Radiography Utilization Low-Risk Criteria (NLC) are criteria designed to guide C-spine radiography in trauma patients. It is unclear how these 2 rules compare with young children. METHODS This study retrospectively examined case-matched trauma patients 10 years or younger. Two cohorts were identified-cohort ...

2015
Carla Cabral dos Santos Accioly Lins Renan Macêdo Cutrim Tavares Camila Caroline da Silva

This work aimed to evaluate the occurrence of suggestive images of styloid process elongation in panoramic radiographs, noting their frequency according to sex, age, and location, as well as measure and classify the types and patterns of calcification of elongated styloid processes. 2,500 panoramic radiographs were evaluated in a Radiology Clinic in Recife, PE, Brazil, performed between 2008 an...

1987
David Mackenzie-Crooks

This is a short, readable, and refreshingly new approach to the radiological management of chest diseases. Not intended as a text for interpretation of basic chest radiographs, it takes the next important step by providing a welcome guide to the correct sequence of further investigation for diagnostic chest problems. The text contains many useful lists, and is supplemented by a series of well i...

2004
Gustav Ullman Michael Sandborg David R Dance M. Båth M. Håkansson S. Börjesson Roger Hunt Gudrun Alm Carlsson

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