The Effect of Lossy Ultrasound Image Compression on the Precision of Carotid Wall Thickness Measurements
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Engineering topics
Publications and source records attributed to Selzer, R..
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Quantitative assessment of intima media thickness (IMT) of the carotid artery using ultrasound has become a standard method for cardiovascular diagnostics.
A new method to measure carotid intima-media thickness (IMT) from Bb-mode ultrasound images was developed that utilizes automatic tracking of the lumen-intima and media-adventitia echoes.
Report describes experiment to investigate effects of isotonic and isokinetic leg exercises in counteracting effects of bed rest upon physical and mental conditions of subjects. Data taken on capacity for work, endurance and strength, tolerance to sitting up, equilibrium, posture, gait, atrophy, mineralization and density of bones, endocrine analyses concerning vasoactivity and fluid and electrolyte balances, intermediary metabolism of muscles, mood, and performance.
Computer program corrects various photometic, geometric and frequency response distortions in pictures. The program converts pictures to a number of elements, with each elements optical density quantized to a numerical value. The translated picture is recorded on magnetic tape in digital form for subsequent processing and enhancement by computer.