نتایج جستجو برای: contrast agent

تعداد نتایج: 629223  

انتظار مهدی, محمد, خم خاجی, جمال, قدیری, حسین , مجرد کاهانی, محمد مهدی , هاشمی, سمانه, کمالی اصل, علیرضا ,

Background and purpose: Dual-energy mammography is a technique which is used to enhance the accuracy of breast cancer diagnosis especially in dense breasts. This study was conducted based on the simultaneous use of two contrast agents for automatic separation and also to evaluate their accuracy using dual-energy digital mammography. Materials and methods: A breast phantom was designed and b...

Introduction: Iatrogenic aortocoronary dissection (ACD) is a nightmare in interventional cardiology. Although ACD is rarely reported, the real-world prevalence is suspected of being higher due to unreported cases. The right coronary artery (RCA) ostium is involved in the majority of cases, and dissections are usually limited to the aortic sinus in half of the clinical presentat...

Elham Gholibegloo Mehdi Khoobi Nader Riahi Alam Sadegh Dehghani Soheila Haghgoo Tohid Mortezazadeh

Introduction: Recent advances in nanoscience and biomedicine have attracted tremendous attention over the past decade to design and construct multifunctional nanoparticles that combine targeting, therapeutic, and diagnostic functions with a single platform to overcome the problems of conventional techniques for diagnosis and therapy with minimal toxicity.   Materials ...

A Kiani, A Mesbahi, B Divband, L Zareei M Khatamian N Gharehaghaji,

Background: Magnetic resonance imaging (MRI) contrast agents have an important role to differentiate healthy and diseased tissues. Access and design new contrast agents for the optimal use of MRI are necessary. This study aims to evaluate iron oxide–4A nanocomposite ability to act as a magnetic resonance imaging contrast agent.Materials and Methods: Iron oxide–4A nanocomposite (F4A) was syn...

ژورنال: سنجش و ایمنی پرتو 2020

This study evaluated the impact of contrast material on the estimation of absorbed dose due to computed tomography pulmonary angiography (CTPA) using the ICRP reference phantoms. To address this issue, we modified the previously developed physiologically based pharmacokinetic (PBPK) model to be conformed to the ICRP reference phantoms. Regarding the standard contrast material injection protocol...

Journal: :Kardiologia polska 2013
Marcin Żach Karolina Kryjan Urszula Ambroziak Magdalena Witkowska Grzegorz Karpiński Grzegorz Opolski Tomasz Bednarczuk

Copyright © Polskie Towarzystwo Kardiologiczne WSTĘP Nadczynność tarczycy indukowana jodem jest rzadkim, ale potencjalnie groźnym w skutkach powikłaniem badania radiologicznego z użyciem środków cieniujących zawierających jod. Nadczynność tarczycy indukowana jodem dotyczy szczególnie pacjentów oddziałów chorób wewnętrznych i kardiologii w podeszłym wieku, obciążonych wieloma chorobami, dla któr...

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