OBJECTIVES To describe the different vascular structures seen by dermoscopy and to evaluate their association with various melanocytic and nonmelanocytic skin tumors in a large series of cases. DESIGN Digital dermoscopic images of the lesions were evaluated for the presence of various morphologic types of vessels. SETTING Specialized university clinic. PATIENTS From a larger database, 531...

PURPOSE To measure the blood flow velocities in feeder vessels of patients with choroidal neovascularization (CNV) secondary to age-related macular degeneration. METHODS We examined the early images of indocyanine green videoangiography (v-ICGA) in 29 patients (29 eyes) with CNV, in whom feeder vessels could be identified by v-ICGA. The v-ICGA images were installed in a personal computer. Wit...

BACKGROUND The role of coronary stenting in the treatment of patients with small vessels is not well defined. The purpose of this study was to investigate the influence of vessel size on long-term clinical and angiographic outcome after coronary stent placement. METHODS AND RESULTS The study comprised 2602 patients with successful stent implantation for symptomatic coronary artery disease. Pa...

The discovery that hemoglobin, albumin, and glutathione carry and release nitric oxide (NO) may have consequences for movement of NO by blood within microvessels. We hypothesize that NO in plasma or bound to proteins likely survives to downstream locations. To confirm this hypothesis, there must be a finite NO concentration ([NO]) in arteriolar blood, and upstream resistance vessels must be abl...

TO THE EDITOR: The paper by Holowatz et al. (3) may be advancing our ability to achieve the elusive goal of using readily accessible vessels, such as in the skin, as diagnostic surrogates for the vessels supplying internal organs (especially the heart and brain). This advance would allow minimally invasive detection of early, presymptomatic disease of the arteries in the critical organs. The ne...

TO THE EDITOR: The paper by Holowatz et al. (3) may be advancing our ability to achieve the elusive goal of using readily accessible vessels, such as in the skin, as diagnostic surrogates for the vessels supplying internal organs (especially the heart and brain). This advance would allow minimally invasive detection of early, presymptomatic disease of the arteries in the critical organs. The ne...

The history and development of pyrazineand pyridine-type heteroacenes and their use in solid-state organic electronics are discussed and reviewed. The larger N-heteroacenes are potential electronor hole-transporting materials and should therefore complement acenes in organic electronics. As they feature electronegative nitrogen ring atoms in their molecular skeleton, issues with oxidation shoul...

In the recent years, resource depletion of inshore and coastal fisheries has seriously impacted Taiwan. Local fishing communities’ economic profits in these fisheries have declined and resulted in lower earned incomes for the fishermen. These phenomena have lead many scholars, government agencies and fishing communities to evaluate the optimal number of operating vessels in these fisheries. Thi...

PURPOSE To establish a relationship between the diameter and depth position of vessels in the superior and inferior corneo-scleral limbus using ultra-high resolution optical coherence tomography (UHR-OCT). METHODS Volumetric OCT images of the superior and inferior limbus were acquired from 14 healthy subjects with a research-grade UHR-OCT system. Differences in vessel diameter and depth betwe...