Low-dose computed tomography instead of radiography in suspected pneumonia
نویسندگان
چکیده
منابع مشابه
Dose Reduction Methods in Chest Computed Tomography
Introduction: Computed tomography is one of the most powerful tools for investigating thorax disease, because it shows progression of lung disease much clearer than chest radiography. Technical advances in CT scanners have led to some abilities for CT scanners such as coverage of larger volume, lower noise and ability for acquiring image in one respiratory phase. However, this will be accompani...
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OBJECTIVES To determine the proportion of correctly diagnosed ureteric calculi and alternate diagnoses using unenhanced low dose multidetector CT KUB. DESIGN Descriptive - prospective study. SETTING Aga Khan University Hospital, Nairobi between November 2006 and October 2007. SUBJECTS One hundred and four patients underwent low dose multi-detector computed tomography (MDCT) KUB. RESULTS...
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Lung cancers, primarily caused by tobacco smoking, are the leading cause of cancer deaths in the United States and around the world. Screening of select high-risk patients using low-dose helical computed tomography (LD-CT) has been shown to reduce lung cancer mortality by 20% compared with chest radiography. However, because there are risks to LD-CT lung cancer screening, it should be performed...
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Radiation dose reduction in pediatric X-ray imaging is especially important because of children radiation sensitivity. For any radiographic examination performed at a fixed radiographic tube potential, the patient absorbed dose is directly proportional to the value of milliampere-seconds (mAs) selected by the operator. Nevertheless, reducing X-ray exposure has the unavoidable disadvantage of in...
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Urolithiasis is common, with the lifetime risk in the United States exceeding 12% in men and 6% in women, and the prevalence appears to have increased in recent years. In addition, many patients have recurrent stones, with an estimated rate of 30% to 40% within 5 years. Noncontrast CT is the imaging study of choice in patients with acute flank pain, replacing traditionally used radiography, ult...
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ژورنال
عنوان ژورنال: Breathe
سال: 2019
ISSN: 1810-6838,2073-4735
DOI: 10.1183/20734735.0319-2018