نتایج جستجو برای: hounsfield number
تعداد نتایج: 1169456 فیلتر نتایج به سال:
BACKGROUND Cigarette smoking is associated with emphysema and radiographic interstitial lung abnormalities. The degree to which interstitial lung abnormalities are associated with reduced total lung capacity and the extent of emphysema is not known. METHODS We looked for interstitial lung abnormalities in 2416 (96%) of 2508 high-resolution computed tomographic (HRCT) scans of the lung obtaine...
BACKGROUND The diagnostic criteria of asthma-COPD overlap syndrome (ACOS) are controversial. Emphysema is characteristic of COPD and usually does not exist in typical asthma patients. Emphysema in patients with asthma suggests the coexistence of COPD. Quantitative computed tomography (CT) allows repeated evaluation of emphysema noninvasively. We investigated the value of quantitative CT measure...
PURPOSE The computed tomogram angiography (CTA) 'spot sign' describes foci of intralesional enhancement associated with hematoma expansion in primary intracerebral hemorrhage patients. A consistent radiological definition is required for two proposed recombinant Factor VIIa trials planning patient dichotomization according to 'spot sign' presence or absence. We propose radiological criteria for...
background: the human body contains of different tissues and cavities with different physical and radiological properties. most important among these are tissues and cavities that are radiologically different from water, including lungs, sinuses and bones. gel dosimetry provides a unique feature to display dose distributions occurring in clinical radiation therapy in three dimensions. materials...
FIGURE 1. Posteroanterior chest roentgenogram illtmstrating wellcircumscribed homogeneous right tmpper lobe cystic lesion. deferred while a second opinion was obtained. The patient felt well and specifically denied fever, chills, chest pain, sputum production, hemoptysis, o)r previous episodes of pneumonia. She had no known exposure to tuberculosis and no prior history of surgery. She was recei...
BACKGROUND AND PURPOSE The aim of the study was to determine whether the Agatston calcium score might be applied as a useful tool for evaluation of carotid stenosis. METHODS A total of 124 carotid bifurcations were examined with multidetector row CT. Calcium scores were determined according to the method described by Agatston et al. RESULTS Agatston scores generally appear appropriate for e...
AMA Cano Martins L, Sarna-Boś K, Kalinowski P, Różyło-Kalinowska I. Cone-beam computed tomography density measurement’s repeatability in Hounsfield units: a preliminary study. Journal of Stomatology. 2023. doi:10.5114/jos.2023.131318. APA Martins, L., Sarna-Boś, K., Kalinowski, P., & Różyło-Kalinowska, (2023). https://doi.org/10.5114/jos.2023.131318 Chicago Luciano Augusto, Katarzyna Paweł and ...
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