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Value of repeated fine needle aspiration cytology in patients with nodular goiter.

April 01, 2008 By: admin Category: Health Sciences

OBJECTIVE: To assess the value of reaspiration cytology in benign nodular thyroid disease. DESIGN: We prospectively studied 400 patients (365 women, 35 men) aged 46 years (18-89) with nodular thyroid disease and initial benign fine needle aspiration cytology (FNAC). (more…)

Viscoelastic properties of human tympanic membrane.

March 11, 2008 By: admin Category: Health Sciences, Veterinary Medicine

Cheng,T; Dai,C; Gan,RZ

Abstract The tympanic membrane or eardrum of human ear transfers sound waves intomechanical vibration from the external ear canal into the middle ear and cochlea. Mechanicalproperties of the tympanic membrane (TM) play an important role in sound transmission through theear. (more…)

Vertebral osteoporosis and trabecular bone quality

March 11, 2008 By: admin Category: Health Sciences, Veterinary Medicine

McDonnell,P; McHugh,PE; O”Mahoney,D

Abstract Vertebral fractures due to osteoporosis commonly occur under non-traumaticloading conditions. This problem affects more than 1 in 3 women and 1 in 10 men over a lifetime.Measurement of bone mineral density (BMD) has traditionally been used as a method for diagnosis ofvertebral osteoporosis. However, this method does not fully account for the influence of changes inthe trabecular bone quality, such as micro-architecture, tissue properties and levels ofmicrodamage, on the strength of the vertebra. Studies have shown that deterioration of the vertebraltrabecular architecture results in a more anisotropic structure which has a greater susceptibilityto fracture. (more…)

Vasoactivity of blood vessels using a novel isovolumic myograph

March 11, 2008 By: admin Category: Health Sciences, Veterinary Medicine

Lu,X; Kassab,GS

Abstract The vasoactivity of blood vessel is impaired by cardiovascular disease. Theex-vivo measurements of vasoactivity (wire and pressure myographs) have some inherent difficultiesin the characterization of pharmacodynamics and biomechanics. Here, we introduce a novel isovolumicmyograph which allows simultaneous measurement of both dynamic pressure and dimensional changesduring vasoconstriction or vasodilation. (more…)