نتایج جستجو برای: digital tomography

تعداد نتایج: 486419  

2007
D. L. Rodrigues José Gaspar

The present work focus on the identification of malignant neoplasias in breast by using the Hough Transform in digital images. A detector of circumference was implemented based on the Hough Transform once the pattern to identify is circular. The detector presented here was developed using MatLab, and was applied to detect circumferences in tomography images.

2014
Mauricio Gustavo Ieiri Yamanari Maria Clara Dias Mansur Fernando Uliana Kay Paulo Rogerio Barboza Silverio Shri Krishna Jayanthi Marcelo Buarque de Gusmão Funari

The authors report the case of a patient victim of gunshots, with a very rare complication: venous bullet embolism from the left external iliac vein to the lingular segment of the left pulmonary artery. Diagnosis is made with whole-body radiography or computed tomography. Digital angiography is reserved for supplementary diagnosis or to be used as a therapeutic procedure.

2018
Ebtessam Nada

Submit Manuscript | http://medcraveonline.com Abbreviations: CI, Cochlear implant; OR, Operating room; EI, electrode impedance; ECAP, electrically evoked compound action potential; SOE, spread of excitation; CT, computed tomography; DSP, digital signal processing; RF, radiofrequency transmitter; PC, personal computer; IR, Intra-operative; ESRTs, Electrical stapedil reflex thresholds, ECoh G, El...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1990
J V Byrne C E Ingram D MacVicar F M Sullivan D Uttley

Positive contrast cisternography with digital subtraction of fluoroscopy images before computed tomography (CT) was employed in the investigation of eight patients with cerebrospinal fluid (CSF) rhinorrhoea. Fistulae were visualised by preliminary digital subtraction cisternography (DSC) in six patients and in five patients the sites of leakage were confirmed at surgery. Fluoroscopy facilitated...

2017
Feroz A. Osmani Savyasachi Thakkar Austin Ramme Ameer Elbuluk Paul Wojack Jonathan M. Vigdorchik

Background Preoperative total hip arthroplasty templating can be performed with radiographs using acetate prints, digital viewing software, or with computed tomography (CT) images. Our hypothesis is that 3D templating is more precise and accurate with cup size prediction as compared to 2D templating with acetate prints and digital templating software. Methods Data collected from 45 patients u...

2013
Sung-Kon Ha Dong-Jun Lim Sang-Dae Kim Se-Hoon Kim

Rapidly developed de novo aneurysm is very rare. We present a rapidly developed and ruptured de novo anterior communicating aneurysm 8 days after the rupture of another aneurysm. This de novo aneurysm was not apparent in the initial 3-dimensional computed tomography and digital subtraction angiography. We reviewed the literature and discussed possible mechanisms for the development of this de n...

2007
BÜLENT TEKINSOY METIN GÜNER ARIF ÖSÜN OGUZHAN OBUZ

Three-dimensional Computed Tomography (3-DCT)was performed in 2l patients for characterization of 29 aneurysms of va rious sizes and locations. and determining the relationsrup between the vascular and bony structures. These findings are com· pared with results ofaxial CT. digital subtraction angiography and

2016
Harish Haridas Abarajithan Mohan Sravanthi Papisetti Kranti K. R. Ealla

With the advances in the field of imaging sciences, new methods have been developed in dental radiology. These include digital radiography, density analyzing methods, cone beam computed tomography (CBCT), magnetic resonance imaging, ultrasound, and nuclear imaging techniques, which provide high-resolution detailed images of oral structures. The current review aims to critically elaborate the us...

Journal: :AJR. American journal of roentgenology 1982
M T Modic M A Weinstein W A Chilcote W Pavlicek P M Duchesneau A J Furlan J R Little

Intracranial vessels were examined in 55 patients with both conventional selective catheterization and intravenous digital subtraction angiography using a prototype digital subtraction unit. In 65% of the patients, the digital subtraction angiogram was diagnostic, but the overall quality was inferior to conventional selective angiography. In 22%, the digital subtraction angiogram provided diagn...

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