نتایج جستجو برای: Computed Tomography Hounsfield Units

تعداد نتایج: 432008  

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: :American Journal of Orthodontics and Dentofacial Orthopedics 2015

Journal: :Collegium antropologicum 2013
Marko Ajduk Stela Bulimbasić Ladislav Pavić Mirko Sarlija Leonardo Patrlj Boris Brkljacić Predrag Pavić Igor Cikara Gordana Ivanac

This study compared sensitivity and specificity of multidetector-row computed tomography and duplex Doppler ultrasonography in detecting atherosclerotic carotid plaques complicated with intraplaque hemorrhage. Carotid plaques from 50 patients operated for carotid artery stenosis were analyzed. Carotid endarterectomy was performed within one week of diagnostic evaluation. Results of multidetecto...

Journal: :iranian endodontic journal 0
naghmeh emadi yaser safi alireza akbarzadeh bagheban saeed asgary

introduction: computed tomography (ct) and cone-beam ct (cbct) are valuable diagnostic aids for many clinical applications. this study was designed to compare the gray scale value (gsv) and hounsfield unit (hu) of selected dental materials and various hard tissues using ct or cbct. methods and materials: three samples of all test materials including amalgam (am), composite resin (cr), glass ion...

2016
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 (H...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1981
D Hilton-Jones

Basal ganglia calcification was found as an incidental finding in 42 out of 7000 patients who underwent computed tomography. The calcification showed on plain skull radiography when the maximum density on computed tomography exceeded 100 Hounsfield units. The 26 patients with basal ganglia calcification detected on computed tomography who were available for follow-up, were investigated with mat...

Journal: :Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine 2014
Juan F Vivanco Travis A Burgers Sylvana García-Rodríguez Meghan Crookshank Manuela Kunz Norma J MacIntyre Mark M Harrison J Tim Bryant Rick W Sellens Heidi-Lynn Ploeg

The purpose of this study was to compare computed tomography density (ρCT ) obtained using typical clinical computed tomography scan parameters to ash density (ρash ), for the prediction of densities of femoral head trabecular bone from hip fracture patients. An experimental study was conducted to investigate the relationships between ρash and ρCT and between each of these densities and ρbulk a...

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