Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Bryon R. Gomberg"'
Publikováno v:
Academic Radiology. 12:1320-1332
Rationale and Objectives Quantitative evaluation of cortical bone architecture as a means to assess bone strength typically is accomplished on the basis of images obtained by means of dual-energy X-ray absorptiometry (DXA) or computed tomography. Mag
Autor:
Alexander C. Wright, Bryon R. Gomberg, Branimir Vasilic, Hee Kwon Song, R. H. Weening, Punam K. Saha, Felix W. Wehrli
Publikováno v:
Bone. 35:266-276
The mechanical competence of trabecular bone is significantly determined, next to material density, by its three-dimensional (3D) structure. Recent advances in micromagnetic resonance imaging (micro-MRI) acquisition and processing techniques allow th
Publikováno v:
Journal of Magnetic Resonance Imaging. 20:83-89
Purpose To explore the potential role of micro-magnetic resonance imaging (μ-MRI) for quantifying trabecular and cortical bone structural parameters in renal osteodystrophy (ROD), a multifactorial disorder of bone metabolism, traditionally evaluated
Publikováno v:
Proceedings of the IEEE. 91:1520-1542
The mechanical competence of trabecular bone, the type of bone constituting the vertebrae and ends of the long bones, is largely determined by the bone's volume fraction and architectural make-up. Experimental and clinical evidence suggests that up t
Autor:
Andrew Cucchiara, Bryon R. Gomberg, Peter J. Snyder, Babette S. Zemel, Hee Kwon Song, Alexander C. Wright, R. H. Weening, Maria Benito, Felix W. Wehrli
Publikováno v:
The Journal of Clinical Endocrinology & Metabolism. 88:1497-1502
Bone strength depends on trabecular architecture, characterized by interconnected plates and rods. In osteoporosis, the plates become fenestrated, resulting in more rods that deteriorate and become disconnected. In men, hypogonadism is a common cause
Publikováno v:
Medical Physics. 30:158-168
After bone mineral density, orientation is the major determinant of trabecular bone strength and is thus of significant interest in understanding the clinical implications of osteoporotic bone loss. The methods used to measure orientation and anisotr
Autor:
Bryon R. Gomberg, María A. Fernández-Seara, Peter J. Snyder, Louise Loh, Babette S. Zemel, Luna Hilaire, Hee Kwon Song, Felix W. Wehrli
Publikováno v:
Journal of Bone and Mineral Research. 17:2265-2273
Quantitative magnetic resonance imaging (QMRI) allows measurement of two parameters that are related to the integrity of the trabecular bone: R2*, the rate constant of the free induction signal, and trabecular bone volume fraction (BVF), the counterp
Publikováno v:
Computer Vision and Image Understanding. 86:171-190
This paper describes the theory and algorithms of distance transform for fuzzy subsets, called fuzzy distance transform (FDT). The notion of fuzzy distance is formulated by first defining the length of a path on a fuzzy subset and then finding the in
Reliability of tissue volumes and their spatial distribution for segmented magnetic resonance images
Publikováno v:
Psychiatry Research: Neuroimaging. 106:193-205
Before using MRI tissue segmentation in clinical studies as a dependent variable or as a means to correct functional data for differential tissue contribution, we must first establish the volume reliability and spatial distribution reproducibility of
Publikováno v:
IEEE Transactions on Medical Imaging. 19:166-174
Recently, imaging techniques have become available which permit nondestructive analysis of the three-dimensional (3-D) architecture of trabecular bone (TB), which forms a network of interconnected plates and rods. Most osteoporotic fractures occur at