نتایج جستجو برای: beam computed tomography cbct

تعداد نتایج: 367528  

Journal: :Prague medical report 2017
Hana Eliášová Taťjana Dostálová

3D Multislice and Cone-beam computed tomography (CBCT) in forensic odontology has been shown to be useful not only in terms of one or a few of dead bodies but also in multiple fatality incidents. 3D Multislice and Cone-beam computed tomography and digital radiography were demonstrated in a forensic examination form. 3D images of the skull and teeth were analysed and validated for long ante mort...

Journal: :Journal of Thoracic Disease 2023

Background: Shape sensing robotic-assisted bronchoscopy (ssRAB) combined with radial endobronchial ultrasound (r-EBUS) and cone beam computed tomography (CBCT) is a newer diagnostic modality for the evaluation of pulmonary lesions. There limited data describing radiation dose CBCT ssRAB. The purpose this study was to describe technical factors associated use ssRAB biopsy

2012
Shawn Adibi Wenjian Zhang

Recent advancements in Cone Beam Computed Tomography (CBCT) have identified the importance of providing outcomes related to the appropriate use of this innovative technology in dentistry. To assist in determining whether evidence exists, the authors conducted a PubMed search in September, 2012 using the key words “cone beam in Dentistry.” This search revealed 1038 articles with 65 reviews recen...

2009
William C. Scarfe Martin D. Levin David Gane Allan G. Farman

Cone Beam Computed Tomography (CBCT) is a diagnostic imaging modality that provides high-quality, accurate three-dimensional (3D) representations of the osseous elements of the maxillofacial skeleton. CBCT systems are available that provide small field of view images at low dose with sufficient spatial resolution for applications in endodontic diagnosis, treatment guidance, and posttreatment ev...

Journal: :Journal of X-ray science and technology 2016
Yaming Li Jicheng Sun Yuanyuan Zhang Wenyang Li Bo Hu Jinlin Song

Dental cone beam computed tomography (CBCT) is a new approach in diagnosis and predication of various dental diseases, including trauma, congenital defects, tumors and inflammatory. In this study, we reported the outcome of CBCT for a complicated case of malocclusion, accompanied with tooth loss and periodontitis. A combined application of CBCT with 3D-static images and rotated reconstruction i...

Journal: :journal of dental research, dental clinics, dental prospects 0
farzaneh kaviani assistant professor, department of oral and maxillofacial radiology, faculty of dentistry tabriz university of medical science, tabriz, iran reza javadrashid assistant professor, department of radiology, faculty of medicine, tabriz university of medical science, tabriz, iran zahra shahmoradi post graduate student, department of oral and maxillofacial radiology, faculty of medical, tabriz university of medical science, tabriz, iran masoud gholamian post graduate student, department of radiology, faculty of medicine, tabriz university of medical science, tabriz, iran

background and aims. the imaging techniques commonly used for foreign body detection include plain radiography, xeroradiography, computed tomography (ct) scans, magnetic resonance imaging (mri) and ultrasonography. the aim of the present study was to compare cone-beam computed tomography (cbct) with conventional ct scan in determination of the exact location of a foreign body in the maxillofaci...

2015
Wataru Kawakami Akihiro Takemura Kunihiko Yokoyama Kenichi Nakajima Tetsu Nakaichi Shoichi Yokoyama Kichiro Koshida

Various techniques are used in image-guided radiotherapy (IGRT). Cone beam computed tomography (CBCT) is widely used in IGRT on linear accelerators. The increased accuracy of IGRT enables reducing planning target volume margins and doses to normal tissues. However, for radiation therapies requiring fractionated irradiation, increased exposure dose attributed to CBCT becomes problematic. We inve...

2011
Kwang-Joon Koh Kyoung-A Kim

PURPOSE This study evaluated the potential use of the computed tomography indices (CTI) on cone beam CT (CBCT) images for an assessment of the bone mineral density (BMD) in postmenopausal osteoporotic women. MATERIALS AND METHODS Twenty-one postmenopausal osteoporotic women and 21 postmenopausal healthy women were enrolled as the subjects. The BMD of the lumbar vertebrae and femur were calcul...

Journal: :Brazilian oral research 2010
Alexandre Perez Marques Andréia Perrella Emiko Saito Arita Marlene Fenyo Soeiro de Matos Pereira Marcelo de Gusmão Paraíso Cavalcanti

There are many limitations to image acquisition, using conventional radiography, of the temporomandibular joint (TMJ) region. The Computed Tomography (CT) scan is a better option, due to its higher accuracy, for purposes of diagnosis, surgical planning and treatment of bone injuries. The aim of the present study was to analyze two protocols of cone beam computed tomography for the evaluation of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده مهندسی 1390

رادیوگرافی دندان با تشخیص و درمان بیماری های دندان به طور انکار ناپذیری تلفیق شده است، حتی به جرات می توان گفت انجام درمان مطلوب ریشه بدون داشتن رادیوگرافی مناسب ممکن نیست. پیشرفت تکنیک های رادیوگرافی مانند ابداع روش های موازی و نسلهای مختلف computed tomography (ct) باعث ارتقای کیفیت درمان ریشه دندان شده است. روش های معمول رادیوگرافی به دلایل مختلف از جمله ماهیت دو بعدی بودن آن، در بسیاری از مو...

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