Zobrazeno 1 - 10 of 20 pro vyhledávání: '"C F, Njeh"'
1
Appropriateness of internal digital phantoms for monitoring the stability of the UBIS 5000 quantitative ultrasound device in clinical trials
Autor: C. Le-Floch, Pascal Laugier, Didier Hans, C. F. Njeh, I. Alekxandrova, G. Conicella, Daniel O. Slosman
Publikováno v: Osteoporosis International. 16:435-445
In bone status assessment, proper quality assurance/quality control is crucial since changes due to disease or therapeutic treatment are very small, in the order of 2-5%. Unlike for dual X-ray absorptiometry, quality control procedures have not been
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d19677166d6092755bb0c850f52c753c
https://doi.org/10.1007/s00198-004-1683-5
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2
Palangeal Quantitative Ultrasound, Phalangeal Morphometric Variables, and Vertebral Fracture Discrimination
Autor: C F Njeh, Mario Cammisa, D A De Serio, Giuseppe Guglielmi, Alfredo Scillitani, Harry K. Genant, Bo Fan, F de Terlizzi, Ying Lu
Publikováno v: Calcified Tissue International. 72:469-477
The aim of this study was to evaluate the association among phalangeal morphometric parameters, amplitude-dependent speed of sound (AD-SOS), ultrasound bone profile index (UBPI), and spinal bone mineral density (BMD) and fracture status. One hundred
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6594036f130296e3b7808773a5248780
https://doi.org/10.1007/s00223-001-1092-0
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3
Universal Standardization of Forearm Bone Densitometry
Autor: Xiao Guang Cheng, John A. Shepherd, C. F. Njeh, Ying Lu, Klaus Engelke, Jorg Toschke, Michael Grigorian, Harry K. Genant
Publikováno v: Journal of Bone and Mineral Research. 17:734-745
As part of an effort to quantify device-dependent differences in forearm bone density, 101 women, aged 20 – 80 years (16 women in each age decade), were scanned on six forearm bone densitometers: the Aloka DCS-600EX, the Hologic QDR-4500A, the Luna
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::134862f8ad3f29a797dc228aa273af87
https://doi.org/10.1359/jbmr.2002.17.4.734
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4
Acoustic and ultrasonic tissue characterization—assessment of osteoporosis
Autor: C F Njeh, C M Langton
Publikováno v: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine. 213:261-269
Osteoporosis, often termed the ‘silent epidemic’, has been defined as ‘a decrease in bone mass and architectural deterioration of bone tissue, leading to enhanced bone fragility and consequent increase in fracture risk’. In the United Kingdom
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43462abd805ddc0c6702f4cfd8730931
https://doi.org/10.1243/0954411991534960
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5
Radiological assessment of a new bone densitometer—the Lunar EXPERT
Autor: D H Temperton, K Apple, C F Njeh, C M Boivin
Publikováno v: The British Journal of Radiology. 69:335-340
Dual energy X-ray absorptiometry (DXA) is one of the most widely used techniques in the management of osteoporosis and other skeletal diseases. Although patient doses from DXA are generally low, it is still necessary to measure them to assess the ris
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::572fa146f0a3eea6ba18744f7d7a03e6
https://doi.org/10.1259/0007-1285-69-820-335
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7
Sound-tissue interaction: the physical basis of bone ultrasonometry and limitations of existing methods
Autor: C M, Langton, C F, Njeh
Publikováno v: Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry. 1(3)
Ultrasound measurements of bone are generally obtained using transmission rather than pulse-echo techniques because of its highly attenuating nature. Ultrasound velocity and attenuation measurements are utilized. For velocity, there are well-defined
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::faf177b961ff5ee29b3840698006dcea
https://pubmed.ncbi.nlm.nih.gov/15304902
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8
Does osteoporosis classification using heel BMD agree across manufacturers?
Autor: X. G. Cheng, C. F. Njeh, John A. Shepherd, Mikayel Grigorian, Harry K. Genant, J. O. Toschke
Publikováno v: Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA. 13(8)
The lack of standardization in bone mineral density (BMD) measurements is known. Several studies have been carried out to cross-calibrate the axial dual X-ray absorptiometry (DXA) devices. Recently, a number of peripheral DXA (pDXA) densitometers hav
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c7be9b2b05c09f4ac8740b99eda6880
https://pubmed.ncbi.nlm.nih.gov/12181618
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10
Estimation of wrist fracture load using phalangeal speed of sound: an in vitro study
Autor: Y. Q. He, C. Y. Wu, C. F. Njeh, Thomas Fuerst, Didier Hans, Harry K. Genant, Bo Fan
Publikováno v: Ultrasound in medicinebiology. 26(9)
This study aimed to evaluate the ability of speed of sound (SOS) measured at the phalanges to estimate simulated wrist fracture load and stress. SOS was measured along the proximal phalanges of the second, third and fourth fingers using an ultrasound
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a00e62af3c4a78edb7d55a39fd1c946
https://pubmed.ncbi.nlm.nih.gov/11179626
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