نتایج جستجو برای: helical computed tomography

تعداد نتایج: 287606  

Journal: :European journal of radiology 2008
Rudolf Boeddinghaus Andy Whyte

A review of state-of-the-art maxillofacial imaging is presented. Current imaging techniques include intra-oral radiographs, dental panoramic tomography, multidetector helical computed tomography, cone-beam computed tomography (CBCT) and magnetic resonance imaging (MRI). The commonest conditions encountered in clinical radiological practice are reviewed, including maxillofacial deformities, comp...

Journal: :avicenna journal of dental research 0
f. poursafar assistant professor, department of oral and maxillofacial radiology, faculty of dentistry , hamadan university ofسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) f. salemi assistant professor, department of oral and maxillofacial radiology, faculty of dentistry , hamadan university ofسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) m. kadkhodazadeh assistant professor, department of periodentology , faculty of dentistry , shaheid beheshti university of medical sciences, iran m. azizi post graduate student, department of oral and maxillofacial radiology, faculty of dentistry , hamadan university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences)

statement of the problem in order to replace lost tooth of patients, we use dental implants which are common. therefore, accurate measuring of bone height and width before placing implants is necessary. the aim of this study is evaluating the accuracy of linear and spiral tomography in careful determination of implant site sizes in comparison with gold standard (cbct). material and methods this...

شریفی, ساناز, ورشوساز, مسعود,

Background: Paranasal sinus disease is one of the most common problems of patients that refer to ENT centers. Adding to clinical examination imaging plays an important role in diagnosis and treatment. Also the imaging of paranasal sinuses is necessary before surgery. Although computed tomography is the modality of choice for these areas, it has some disadvantages which the most important one is...

Journal: :journal of dentistry, tehran university of medical sciences 0
masoud varshowsaz sepideh goorang sara ehsani zeynab azizi sepideh rahimian

objectives: bone quality and quantity assessment is one of the most important steps in implant treatment planning. different methods such as computed tomography (ct) and recently suggested cone beam computed tomography (cbct) with lower radiation dose and less time and cost are used for bone density assessment. this in vitro study aimed to compare the tissue density values in hounsfield units (...

Journal: :The Laryngoscope 2014
Saeed Fakhran Lea Alhilali Gayathri Sreedher Andreea C Dohatcu Stella Lee Berrylin Ferguson Barton F Branstetter

OBJECTIVES/HYPOTHESIS Cone beam computed tomography (CBCT) has emerged as a low radiation dose alternative to traditional computed tomography (CT) to evaluate the paranasal sinuses. The purpose of our study was to determine how often clinically important findings would be missed if CBCT was used routinely for sinus imaging. STUDY DESIGN Retrospective review. METHODS We evaluated all maxillo...

Journal: :Iranian Journal of Radiology 2021

Background: Chest computed tomography (CT) is a recommended screening and assessment tool for patients with suspected coronavirus disease (COVID-19). However, CT units are currently not available in many temporary hospitals centralized isolation places. Objectives: To delineate the workflow of mobile unit evaluate its role COVID-19 infection locations. Patients Methods: Two hundred twenty-three...

Journal: :Japanese Journal of Radiological Technology 1996

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