Even though drug-eluting stent (DES) implantation is an effective treatment for coronary artery stenosis, there are growing concerns related to the real usefulness of DESs due to their increased incidence of thrombosis, stent fracture, and late stent malapposition in comparison to bare metal stents. We have previously reported a case of stent fractures and multiple microaneurysms in both the le...

Moyamoya is an intriguing and controversial syndrome. This patient study serves to align the pathophysiology of intracranial hemorrhage in moyamoya with the cerebral vascular disease seen with hypertension, or aging. The historical evidence linking lipohyalinosis and microaneurysms to cerebral hemorrhage is reviewed, the pathogenesis of this angiopathy is discussed, and explanations considered ...

Diabetic retinopathy is a complication of diabetes and a leading cause of blindness in the world. It occurs when diabetes damages the tiny blood vessels inside the retina. The main two types of diabetic retinopathy the first are non-proliferate diabetes retinopathy (NPDR) and second are proliferate diabetes retinopathy (PDR). Images analysis by trained individuals, which can be a very costly an...

OBJECTIVE To assess whether the methodological changes of this new algorithm improves the results of a previously presented strategy. METHODS We enhance the image and filter out the green channel of the digital color retinography. Multitolerance thresholding was applied to obtain candidate points and make a seed growing region by varying intensities. We took 15 characteristics from each regio...

Purpose: To evaluate the efficacy of computer algorithms in the detection and grading of retinopathy derived from screening of diabetic photographs. Methods: Screening fundus photographs (5 per eye) taken with a mydriatic camera in a general ophthalmology clinic for 52 sequential diabetic patients were graded by a general ophthalmologist and a retina specialist and compared with computer gradin...