نتایج جستجو برای: تصویر mri

تعداد نتایج: 122818  

بصیری، , کیوان, زارع، , محمد, شایگان نژاد, وحید ,

سابقه و هدف: اکثر بیمارانی که با سرگیجه واقعی حاد مراجعه می کنند مبتلا به بیماری های وستیبول و عصب VIII هستند، ولی همیشه ترس از اینکه سرگیجه از نوع مرکزی و بعلت ضایعات ساقه مغز باشد وجود دارد. در اغلب موارد تنها راه تشخیص این بیماران MRI مغز است. در این مقاله کاربرد رفلکس چشمک در بررسی بیماران مبتلا به سرگیجه واقعی حاد در مقایسه با MRI مورد مطالعه قرار گرفته است. مواد و روش ها: تعداد 105 بیمار ...

F Dehghani, Mohammad Rezaei sadrabadi , Shokoh Taghipour Zahir,

Abstract Background Cerebral neoplasm arises from brain, spinal cord and meningeal cells. Not only malignant cerebral neoplasm also benign tumor could lead to death due to mass effect on vital structures. Access to these tumors is difficult, and MRI and CT scan could be helpful in determining anatomical location of tumors and distinction of malignant from benign. Objective For better and ea...

2000
Harikesh Nair Chandra R. Bhat Ryan J. Kelly Harikesh S. Nair

The soak-time of vehicle trip starts is defined as the duration of time in which the vehicle’s engine is not operating and that precedes a successful vehicle start. The temporal distribution of the soak-time in an area is an important determinant of area-wide mobile source emissions. In the current paper, we formulate and implement a methodology for modeling soak-time durations. The methodology...

Journal: :Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention 2005
Marcos Martín-Fernández Sylvain Bouix Lida Ungar Robert W. McCarley Martha Elizabeth Shenton

In this paper, we present an evaluation of seven automatic brain tissue classifiers based on level of agreements. A number of agreement measures are explained, and we show how they can be used to compare different segmentation techniques. We use the Simultaneous Truth and Performance Level Estimation (STAPLE) of Warfield et al. but also introduce a novel evaluation technique based on the Willia...

Journal: :iranian journal of cancer prevention 0
mahboobeh abedi dept. of radiology, imam reza hospital, mashad university of medical sciences, mashhad, iran donya farrokh dept. of radiology, imam reza hospital, mashad university of medical sciences, mashhad, iran fatemeh homaei solid tumor treatment research center, mashad university of medical sciences, mashhad, iran azadeh joulaee dept. of surgery, mahdieh hospital, shahid beheshti university of medical sciences, tehran, iran robab anbiaee dept. of radiation oncology, mahdieh hospital, shahid beheshti university of medical sciences, tehran, iran behrooz zandi dept. of radiology, imam reza hospital, mashad university of medical sciences, mashad, iran

background: physical examination (pe) and breast mri are two of the current methods which have usually used in diagnosis of primary breast cancer. their accuracy in detection of: either complete response or presence of residual tumor, however, has not yet been established in patients who have been received neoadjuvant chemotherapy (nac). the purpose of this study was to evaluate the diagnostic ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی موادو متالورژی 1386

هدف از تحقیق حاضر، سنتز و بررسی تأثیر نانوذرات مغناطیسی مگنتیت سوپرپارامغناطیس با پوشش دکستران جهت استفاده در mri بوده است.دراین ارتباط نانوذرات مگنتیت خالص (fe3o4) و جایگزین شده با یونzn+2 جهت بدست آمدن ترکیب (zn0.2fe2. 8o4) توسط روش هم رسوبی با پوشش دکستران تحت شرایط معین سنتز گردید. در ادمه فعالسازی سطح نیز صورت گرفت. بعلاوه در این ارتباط پارامتر ها و متغیر های مختلف سنتز(غلظت و زمان پیرساز...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
elham shobeiri dept. of radiology, school of medicine, kermanshah university of medical sciences, kermanshah hamidreza saeedi dept. of nurosurgery, school of medicine, kermanshah university of medical sciences, kermanshah jafar keyhanshokooh dept. of radiology, school of medicine, kermanshah university of medical sciences, kermanshah mansour rezaei dept. biostatistic and epidemiology, school of health, kermanshah university of medical sciences, kermanshah

background: this study aimed to determine relationship between mri imaging results and demographic characteristics of patients with low back pain and lower extremity radiculopathy. methods: this analytic-comparative study was carried out from april 2007 until march 2008   on patient   referred to imam reza hospital in kermanshah. demographic features and mri imaging results of 242 patients with...

2011
Aruna Balasubramanian ARUNA BALASUBRAMANIAN Arun Venkataramani Brian Neil Levine

ARCHITECTING PROTOCOLS TO ENABLE MOBILE APPLICATIONS IN DIVERSE WIRELESS NETWORKS

2010
Eli R. Hooten Julie A. Adams William H. Robinson Julie Adams William Robinson Sean Hayes

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید