نتایج جستجو برای: dimensional imaging

تعداد نتایج: 829925  

2017
Hubert Grün Thomas Berer Karoline Felbermayer Peter Burgholzer Markus Holotta Gerhard Zangerl Robert Nuster Günther Paltauf

Journal: :Optics express 2000
M K Kim

The principle of wavelength-scanning digital interference holography is applied to three-dimensional imaging of a small biological specimen. The images are reconstructed from a number of holograms digitally recorded while the wavelengths are varied at regular intervals, and the numerical interference of the multiple three-dimensional hologram fields results in tomographic images with narrow axi...

Journal: :acta medica iranica 0
z. miabi a. alaee m. midia h. hashemi

a 3 month- old boy was admitted with recurrent severe respiratory distress and refractory to therapeutic options. patient underwent a helical multidetector ct examination. axial, coronal and three- dimensional imaging, revealed tracheal bronchus, stenosis, diverticulum and bronchiectasis. in this situation, ct scanning, perfectly 3d imaging is recommend for rule out congenital tracheobronchial ...

Journal: :archives of cardiovascular imaging 0
ikram kammoun department of cardiology, ariana hospital, tunis, tunisia; department of cardiology, ariana hospital, tunis, tunisia. tel: +216-98644048 lemone houchinne department of cardiology, ariana hospital, tunis, tunisia sonia marrakchi department of cardiology, ariana hospital, tunis, tunisia wael ben amara department of cardiology, ariana hospital, tunis, tunisia zied ibn elhaj department of cardiology, ariana hospital, tunis, tunisia souha mokrani department of cardiology, ariana hospital, tunis, tunisia

conclusions according to our multimodality imaging approach, hypertrophic cardiomyopathy was the most probable diagnosis. case presentation we describe a 73-year-old woman referred to us for consultation because of a giant negative t wave on her electrocardiography. echocardiography revealed diffuse severe hypertrophy associated with hypertrophied anterolateral papillary muscles with a bifid he...

1997
Matthew C. Forman Amar Aggoun

An integral imaging system is employed as part of a three dimensional imaging system, allowing display of full colour images with continuous parallax within a wide viewing zone. A novel approach to the problem of compressing the significant quantity of data required to represent integral 3D video is presented and it is shown that the reduction in bit cost achieved makes possible transmission vi...

Journal: :iranian journal of radiology 0
ali sarrami-foroushani department of chemical engineering, isfahan university of technology, isfahan, iran mohsen nasr esfahany department of chemical engineering, isfahan university of technology, isfahan, iran; department of chemical engineering, isfahan university of technology, isfahan, iran. tel: +98-3133915631, fax: +98-3113912677 abbas nasiraei moghaddam department of biomedical engineering, amirkabir university of technology (tehran polytechnic), tehran, iran hamidreza saligheh rad medical physics and biomedical engineering department, tehran university of medical sciences, tehran, iran kavous firouznia advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, iran madjid shakiba advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, iran

conclusion both techniques provided quantitatively consistent results of in vivo velocity vector fields in right internal carotid artery (rca). pc mri represented a good estimation of main flow patterns inside the vasculature, which seems to be acceptable for clinical use. however, limitations of each technique should be considered while interpreting results. subjects and methods mr imaging was...

Journal: :Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics 2002
Moschos A Papadopoulos Panayiotis K Christou Payayiotis K Christou Athanasios E Athanasiou Peter Boettcher Hans Florian Zeilhofer Robert Sader Nikolaos A Papadopulos

This review article aims to describe and discuss the imaging techniques most commonly used in medicine and dentistry to obtain three-dimensional images of the craniofacial complex. Three-dimensional imaging techniques provide extensive possibilities for the detailed and precise analysis of the whole craniofacial complex, for virtual (on-screen) simulation and real simulation of orthognathic sur...

Journal: :Handbook of experimental pharmacology 2008
Ralf B Schulz Wolfhard Semmler

Optical imaging techniques offer simplistic while highly sensitive modalities for molecular imaging research. In this chapter, the major instrumental necessities for microscopic and whole-animal imaging techniques are introduced. Subsequently, the resulting imaging modalities using visible or near-infrared light are presented and discussed. The aim is to show the current capabilities and applic...

Journal: :Physical review letters 2002
S Omori Y Nihei E Rotenberg J D Denlinger S Marchesini S D Kevan B P Tonner M A Van Hove C S Fadley

We propose differential holography as a method to overcome the long-standing forward-scattering problem in photoelectron holography and related techniques for the three-dimensional imaging of atoms. Atomic images reconstructed from experimental and theoretical Cu 3p holograms from Cu(001) demonstrate that this method suppresses strong forward-scattering effects so as to yield more accurate thre...

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