نتایج جستجو برای: resolution ct
تعداد نتایج: 410701 فیلتر نتایج به سال:
BACKGROUND The role of bone structure, one component of bone quality, has emerged as a contributor to bone strength. The application of high-resolution imaging in evaluating bone structure has evolved from an in vitro technology for small specimens to an emerging clinical research tool for in vivo studies in humans. However, many technical and practical challenges remain to translate these tech...
pulmonary alveolar microlithiasis is an uncommon infiltrative pulmonary disease characterized by deposition of microliths in the alveoli. we present the case of a young adult with complaints of shortness of breath on exertion. chest radiograph showed innumerable small, dense nodules, diffusely involving both the lungs - predominantly in the lower zones. high-resolution ct scan illustrated wides...
here we describe the second reported case of cannabinoid hyperemesis in uk. a 42 years old patient presented on more than one occasion with vomiting, abdominal pain, fever and dehydration and treated as sepsis with antibiotics. extensive investigations including upper gi endoscopy, colonoscopy, chest x-ray, abdominal ultrasound, abdominal ct scan, barium swallow and echocardiogram; all reported...
PURPOSE The noise variance versus spatial resolution relationship in differential phase contrast (DPC) projection imaging and computed tomography (CT) are derived and compared to conventional absorption-based x-ray projection imaging and CT. METHODS The scaling law for DPC-CT is theoretically derived and subsequently validated with phantom results from an experimental Talbot-Lau interferomete...
زمینه و هدف: مفصل زانو بهعنوان بزرگترین مفصل سینوویال بدن شامل رباطهای جانبی، رباطهای متقاطع و منیسک داخلی و خارجی میباشد. برای مدیریت مناسب، شناسایی آسیب به هریک از ساختارهای زانو ضروری است. در این مطالعه حساسیت، ویژگی و صحت تشخیصی High Resolution CT Scan در آسیبهای منیسک بررسی گردید. روش بررسی: در این مطالعه ارزیابی صحت آزمون، 57 بیمار با شرح حال مثبت ضایعه منیسک مراجعهکننده به بیمارستا...
Magnetic susceptibility (χ) measurements are widely used for the evaluation of soil profile development. Fourteen soil profiles were studied in a relatively wide range of climatic conditions in Fars Province. Citrate-bicarbonate-dithionite (CBD) extraction and micro CT-Scan images were used to evaluate the source of magnetic susceptibility. The results showed that soil samples lost 23 to 91 per...
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