قره آغاجی, ناهیده
دانشگاه علوم پزشکی تبریز، تبریز
[ 1 ] - بررسی یافته های 1260 مورد هیستروسالپنگوگرافی زنان نابارور در تبریز
Background & Objectives: In spite of rapid development and arrival of newer medical imaging modalities such as computed tomography and magnetic resonance imaging, hysterosalpingography (HSG) has a great role among imaging techniques because of its enormous advantages. HSG is the standard screening test for the diagnosis of tubal infertility and can provide useful information about the uterine...
[ 2 ] - گزارش یک مورد نازایی ثانویه در اثر باقیماندن گاز جراحی در لگن
زمینه و هدف: یکی از عوارض نادر جراحی‌های شکم و لگن، باقیماندن لوازم جراحی در محل عمل است. نازایی ثانویه در زمینه باقیماندن جسم خارجی در لگن نیز از موارد بسیار نادر است. معرفی مورد: مورد خانم 40 ساله‌ای است که دارای یک فرزند با زایمان طبیعی، بدون سابقه نازایی بود و به‌علت وجود فیبروم‌های رحمی تحت عمل میومکتومی قرار گرفته بود. بعد از عمل جراحی با نازایی ثانویه برای بررسی رحم و لوله‌های رحمی به م...
[ 3 ] - اثر زمان معکوس بر ارتباط خطی بین غلظت نانوذرات اکسید آهن با پوشش پلی اتیلن گلیکول و شدت سیگنال در تصویربرداری تشدید مغناطیسی با سکانس بازیافت معکوس
Background and purpose: In MRI the concentration of contrast agent is indirectly measured from signal intensity (SI). It is important to find the maximum linear relationship between SI and concentration of the iron oxide nanoparticles for perfusion measurement. The aim of this study was to investigate the effect of inversion time on SI and the maximum linear relationship between SI and concentr...
[ 4 ] - Microdosimetry: experimental methods and medical applications
Introduction: Microdosimetry is a fundamental method that studies the nature of energy transfer in micron volumes in the particular biological cells. In a biological target, the amount of ionization does not indicate the magnitude of biological radiation-induced damage. However, the severity of biological harm depends strongly on the amount of the linear energy transfer along t...
[ 5 ] - A New Potential Contrast Agent for Magnetic Resonance Imaging: Iron Oxide-4A Nanocomposite
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...
[ 6 ] - Dosimetry of Critical Organs in Maxillofacial Imaging with Cone-beam Computed Tomography
Background: While the benefits of cone-beam computed tomography (CBCT) are well known in maxillofacial imaging, the use of this modality is not risk-free.Objective: The aim of this study was to evaluate the exposure doses received by patients during maxillofacial imaging with CBCT.Methods: Entrance surface dose (ESD) was measured by using thermoluminescent dosimeters (TLDs) attached to the eyes...
[ 7 ] - Brain Volume Estimation Enhancement by Morphological Image Processing Tools
Background: Volume estimation of brain is important for many neurological applications. It is necessary in measuring brain growth and changes in brain in normal/abnormal patients. Thus, accurate brain volume measurement is very important. Magnetic resonance imaging (MRI) is the method of choice for volume quantification due to excellent levels of image resolution and between-tissue contrast. St...