نتایج جستجو برای: ct scan tehran

تعداد نتایج: 204514  

Objective(s): In clinical practice, approximately 10-25% of post-surgical differentiated thyroid carcinoma (DTC) patients with high serum thyroglobulin (Tg) and negative 131I whole-body scan (WBS) have poor prognosis due to recurrent or metastatic lesions after radioactive iodine treatment. The purpose of this study was to evaluate the value of 18F-FDG PET/CT scan in DTC patients with high seru...

2018
Mohammad Vafaee Shahi Samileh Noorbakhsh Vida Zarrabi Banafsheh Nourozi Leila Tahernia

Background Any mismatch between the production and absorption of CSF results in hydrocephalus. In most cases, the selected choice of treatment is the ventriculoperitoneal shunt insertion. Although, the surgery could have complications such as infection, shunt malfunction, subdural hematoma, seizure and Shunt immigration; so, the early and proper detection of these complications could result in ...

Journal: :The Open Nuclear Medicine Journal 2010

Introduction: Nowadays applying computer in image processing is being improved revolutionary for solving medical images deficiencies. Image features that are analysis in image processing show image information. The aim of the present study was to find correlation between CT- scan and MRI images' features. Materials and Methods: After data acquisition, applying...

آذرگشب, اذن ا..., غفوری, مهیار,

Acute head trauma is one of the most common causes of emergency hospital admissions and its two important complications are subdural haematomas and epidural haematomas, for which the CT scan is a main tool of diagnosis. Differentiation of this two haematoms is important and the ability of CT scan to differentiate them always been in question. This descriptive study aims to evaluate the ability ...

2015
Sima Marzban Roya Rajaee Soheyla Gholami Meysam Safi Keykale Marziye Najafi

BACKGROUND Direct out-of-pocket (OOP) payment is the most inequitable way to pay for healthcare services, and this trend exposes patients and their families to backbreaking financial risks. The aim of this study was to estimate the out-of-pocket expenditures for outpatient imaging services in Imam-Khomeini Hospital in Tehran. METHODS This cross-sectional study was conducted in 2014 on 100 use...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد 1388

در این پروژه روشی برای مدل سازی قطعات صنعتی از عکسهای ct ارائه شده است. در فصل دوم فیزیک پرتو برداری ct و تولید تصویر به اختصار توضیح داده شده است. در فصل سوم الگوریتمهای پردازش تصویر که در این پروژه به کار رفته شرح داده شده است. توسط این الگوریتم ها عمل قطعه بندی و شناسایی لبه انجام می شود که در فصل مذکور روش های لبه یابی به کمک الگوریتم sobel و canny و مزایا و معایب هر کدام تشریح شده است و در...

Journal: :emergency journal 0
hooman bahrami-motlagh radiology department, loghman hakim hospital, shahid beheshti university of medical sciences, school of medicine, tehran, iran. mohammad hadizadeh-neisanghalb general surgery department, loghman hakim hospital, shahid beheshti university of medical sciences, tehran, iran. hassan peyvandi hearing disorders research center, loghman hakim hospital, shahid beheshti university of medical sciences, tehran, iran.

introduction: endoscopy is an invasive procedure and finding noninvasive alternative tools in detection of probable upper gastrointestinal (gi) tract injuries following caustic ingestion is an area of interest. the present study aimed to evaluate the screening performance characteristics of thoraco-abdominal computed tomography (ct) scan in this regard. methods: this prospective cross sectional...

FDG PET CT scan is considered to be a sensitive tool to detect skeletal metastasis in known malignancies. However, it’s high sensitivity and low specificity may account for false positive diagnosis in cases of trauma, infection, inflammation and other benign conditions. Skeletal hemangioma is one of the common benign conditions which are typically ametabolic on FDG PET CT with no uptake on bone...

2016
Daryoush Fatehi Farhad Naleini Mohammad Gharib Salehi Alireza Gharib Ayoob Rostamzadeh

In this paper we will present a 49 years old Iranian man with a totally different craniocervical junction. The case has referred with severe headache, as his chief complaint, to the emergency ward of Hazrat Rasoul hospital (Tehran, Iran) in March 2012. After admission and primary examinations, in order to find the cause of headache, the patient was referred to imaging department requesting brai...

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