نتایج جستجو برای: hounsfield number

تعداد نتایج: 1169456  

2009
Nic Mullin Cvetelin Vasilev Jaimey D. Tucker C. Neil Hunter Christa H. M. Weber Jamie K. Hobbs

Nic Mullin, Cvetelin Vasilev, Jaimey D. Tucker, C. Neil Hunter, Christa H. M. Weber, and Jamie K. Hobbs Department of Physics and Astronomy, University of Sheffield, The Hicks Building, Hounsfield Road, Sheffield, South Yorkshire S3 7RH, United Kingdom Department of Molecular Biology and Biotechnology, University of Sheffield, Firth Court, Western Bank, Sheffield, South Yorkshire S10 2TN, Unite...

Journal: :Medical physics 2009
Zachary H Levine Mingdong Li Anthony P Reeves David F Yankelevitz Joseph J Chen Eliot L Siegel Adele Peskin Diana N Zeiger

The authors characterized a commercially available foam composed of polyurethane and polyisocyanurate which is marketed for modeling parts in the aircraft, automotive, and related industries. The authors found that the foam may be suitable for use as a density reference standard in the range below -400 Hounsfield units. This range is coincident with the density of lung tissue. The foam may be h...

2015
Dilip Kumar Pal Anurag Puri

This study was conducted on one hundred and eight patients to determine the stone clearance rate with respect to NCCT –HU density of the stone. Various statistical measures were applied for assessing the predictability about the success of ESWL therapy for that stone’s HUD. As per the final analysis of the study we can conclude that Hounsfield Unit Density bears significant relationship for pre...

2016
Paul G. Blackwell Mark S. Lambert Scott D. LaPoint

continuous time Paul G. Blackwell*, MuNiu, Mark S. Lambert and Scott D. LaPoint School ofMathematics and Statistics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK; School of Mathematics and Statistics, University Gardens, University of Glasgow, GlasgowG12 8QW,UK; NationalWildlife Management Centre, Animal and Plant Health Agency, SandHutton, York YO41 1LZ, UK; D...

2013

Since the introduction of clinical CT great improvements in scan time, patient comfort and resolution have been made. The first clinical CT scanner dates from 1972 and was developed by Godfrey Hounsfield. It required an acquisition time of 5 minutes and reconstruction of one image took 7 minutes . In the following years CT systems improved rapidly and by 1976 acquisition time for one CT image h...

Journal: :AJNR. American journal of neuroradiology 2005
Thomas C Lee Eric S Bartlett Allan J Fox Sean P Symons

An acute intracranial embolus may be associated with a hyperdense artery sign on CT, related to acute thrombus within the affected artery, a phenomenon that is well known and has been extensively documented. We present an unusual case of a middle cerebral artery territory acute infarct with a hypodense artery on CT. The Hounsfield unit attenuation of the embolic lesion was fat density. CT angio...

پایان نامه :0 1374

the following null hypothesis was proposed: h : there is no significant difference between the use of semantically or communicatively translates scientific texts. to test the null hypothesis, a number of procedures were taken first, two passages were selected form soyrcebooks of food and nutrition industry and gardening deciplines. each, in turn, was following by a number of comprehension quest...

2005
S. Cecchini

S. Cecchini a , E. Korolkova , A. Margiotta , L. Thompson , on behalf of the ANTARES Collaboration (a) Dipartimento di Fisica dell’Universita’ di Bologna e Sezione INFN di Bologna, viale C. Berti Pichat, 6/2, 40127 Bologna, Italy (b) Also IASF/CNR, Bologna, Italy (c) Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, United Kingdom P...

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...

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