نتایج جستجو برای: contrast sensitivit

تعداد نتایج: 392879  

Journal: :Journal of Vision 2004

Journal: :Journal of Ultrasound in Medicine 2007

Journal: :Vision Research 2010

 Background and purpose: Computed tomography scan (CT) is highly capable of diagnosing abdominal and pelvic lesions. Injection of contrast media at appropriate concentration and volume provides the least side effects and the highest image quality. This study aimed at investigating the volume of contrast medium injected and the level of image contrast compared to the standard model, in the imagi...

Objective- To evaluate and compare the radiographic efficacy and safety of a non-ionic dimeric and isotonic iodinated contrast medium, iodixanol (320 mgI/ml) and a non-ionic monomer and hypertonic contrast medium, iohexol (300 mgI/ml) in feline cervical myelography. Design- Experimental study Animals- Five adult healthy cats. Procedures- Iodixanol and iohexol were injected into the cerebello...

Introduction: Using contrast medium in diagnosis and identifying of an organ from its surrounding tissue is very useful. These contrast mediums alter radiation absorption of studied organs. The aim of this study is to identify the influences of contrast media in treatment planning system of the pelvis.   Materials and Methods: Seven patients with pelvis area ...

جعفرزاده پور, ابراهیم, غضنفری, اعظم, میرزاجانی, علی, نوروزپور دیلمی, کیومرث, کرمی, حسین,

Background and purpose: Threshold contrast sensitivity could be considered as an important indicator of visual function in thalassemic patients. In this study the threshold of contrast sensitivity was investigated in patients with major and minor thalassemia and normal individuals. Material & methods: This cross-sectional study was conducted in 30 patients of thalassemia major (Desferal depen...

2015

The administration of iodinated contrast media is an essential component of many diagnostic and therapeutic procedures that involve radiologic imaging. An important potential side effect of iodinated contrast administration is contrast-induced nephropathy (CIN), defined as an increase in serum creatinine of more than 25 percent or 0.5 mg/dL within 3 days of intravascular administration of contr...

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