نتایج جستجو برای: ray computed tomography

تعداد نتایج: 481614  

ژورنال: :مجله علمی دانشگاه علوم پزشکی گرگان 0
فریدا عابسی abesi f احسان موعودی moudi e بابل، میدان ولایت، خیابان فلسطین، صندوق پستی 853 ، تلفن 32291408-011 ، نمابر 22391093 سینا حقانی فر haghanifar s مصطفی نجفی najafi m

زمینه و هدف : ناحیه قدامی فک پایین محل انجام بسیاری از اعمال جراحی فک و دندان است. از طرفی این ناحیه محل شاخه ثنایایی عصب آلوئولار تحتانی است. این مطالعه به منظور تعیین میزان رویت و پیشروی شاخه ثنایایی عصب آلوئولار تحتانی در تصاویر cone beam computed tomography انجام شد. روش بررسی : در این مطالعه توصیفی تحلیلی 105 تصویر cbct از نظر وجود یا عدم وجود شاخه ثنایایی و میزان پیشروی عصب آلوئولار تحتان...

2015
Christian Lohse Philip Catala-Lehnen Marc Regier Max Heiland

Cone beam computed tomography is a state-of-the-art imaging tool, initially developed for dental and maxillofacial application. With its high resolution and low radiation dose, cone beam tomography has been expanding its application fields, for example, to diagnosis of traumata and fractures in the head and neck area. In this study, we demonstrate superior and satisfactory performance of cone b...

Journal: :iranian journal of radiology 0
fariba rezaeetalab department of pulmonary medicine, m}oo vm{ea{ospi~el bmsw{mavc}nkwovw{ yiogmmwe{calossiuoomsmashhad university of medical sciences,, iran +98-5118598818, [email protected]; department of pulmonary medicine, m}oo vm{ea{ospi~el bmsw{mavc}nkwovw{ yiogmmwe{calossiuoomsmashhad university of medical sciences,, iran +98-5118598818, [email protected] donya farrokh department of radiology, imam reza hospital, mashhad university of medical sciences, iran

Journal: :iranian red crescent medical journal 0
vahid noorian department of general surgery, medical school, shahid beheshti university of medical sciences, iran +98-9122158199, [email protected]; department of general surgery, medical school, shahid beheshti university of medical sciences, iran +98-9122158199, [email protected] arya motaghi department of radiology, medical school, shahid beheshti university of medical sciences, iran

background paranasal sinus ct has high sensitivity and specificity for sinusitis. however, this modality is costly and involves greater radiation exposure than plain radiographs. objectives we tried to compare 10-cut limited ct scan and standard ct scan in the diagnosis of sinusitis. materials and methods we conducted a cross sectional case series from august to december 2010 on 150 patients wi...

Journal: :Computer Optics 2021

The methods of X-ray computed tomography allow us to study the internal morphological structure objects in a non-destructive way. evolution these is similar many respects photography, where complex optics were replaced by mobile phone cameras, and computers built into took over functions high-quality image generation. originated as method hardware non-invasive imaging certain cross-section huma...

Journal: :iranian journal of pathology 2007
alireza abdollahi mitra mehrazma hossein ghanaati

background and objective: computerized tomography and fluoroscopic computerized tomography are amongst the methods used for guiding needle biopsy processes; however, fluoroscopic computerized tomography demonstrates the images during the process of biopsy. this study aims to compare and contrast the success of biopsy under guide of computerized tomography and fluoroscopic computerized tomograph...

Journal: :iranian journal of veterinary research 2006
b. shojaei a. r. vajhi a. rostami m. m. molaei i. arashian

the purpose of this study was to identify the anatomic structures of the abdominal region of cat throughcomputed tomography (ct) to be used by veterinary radiologists, clinicians and surgeons. the abdominalregion of four cats were scanned twice, with and without using contrast medium in a same position, usinghigh-resolution imaging protocol. slice intervals were 11 mm and were adjusted so that ...

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