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Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

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Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

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Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
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At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
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Reply to: Idiopathic Duro-Optic Calcification

Eduardo Roditi1, Lauren M Wasser, Eliel Ben-David

  • 1Department of Ophthalmology, Shaare Zedek Medical Center Affiliated with the Hebrew University, Hadassah School of Medicine, Jerusalem, Israel, Department of Ophthalmology, Shaare Zedek Medical Center Affiliated with the Hebrew University, Hadassah School of Medicine, Jerusalem, Israel, Department of Radiology, Shaare Zedek Medical Center Affiliated with the Hebrew University, Hadassah School of Medicine, Jerusalem, Israel; and Department of Ophthalmology, Shaare Zedek Medical Center Affiliated with the Hebrew University, Hadassah School of Medicine, Jerusalem, Israel.

Journal of Neuro-Ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society
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Summary

No abstract available in PubMed .

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