BACKGROUND 99mTc-sestamibi and thallium imaging have similar accuracy when used for diagnostic purposes, but whether sestamibi provides accurate information regarding myocardial viability in patients with chronic coronary artery disease has not been established. Since there is minimal redistribution of sestamibi over time, it may overestimate nonviable myocardium in patients with left ventricul...

OBJECTIVE To evaluate the outcome of repeated intravitreal injections of triamcinolone acetonide for the treatment of exudative age-related macular degeneration. METHODS This prospective, comparative nonrandomized clinical interventional study included 13 patients with progressive exudative age-related macular degeneration with occult, or predominantly occult, subfoveal neovascularization. Al...

Reinjection, which began at Larderello in 1974 as a means of disposing of excess steam condensate, is now envisaged as a method for improving heat recovery. The behavior of the geothermal field when subjected to production and injection is difficult to predict because of the very heterogeneous fractured reservoir. More information is needed on circulation patterns and heat sweeping processes to...

Leukocytes labeled with technetium-99m using pretinning with stannous complexes of pyrophosphate, glucoheptonate, and gentisic acid were compared with respect to labeling efficiency, time required for labeling, in vitro cell viability, initial lung transit, and image quality following reinjection into normal volunteers. Gentisic acid pretinning was the best method, offering the shortest prepara...

BACKGROUND Controversy remains about the longevity of correction in autologous fat grafts and its relation to adipocyte survival. Reported long-term fat graft survival rates differ widely, depending on harvesting method, means of reinjection, injection site, and evaluation methods. OBJECTIVE To demonstrate histologic findings of aspirated adipose tissue and compare the findings to the reports...

This study proposes a concept and presents workflow to examine potential reasons for low injectivity of sandstone aquifers. Injection related problems are major challenge the sustainable utilization geothermal waters. In order completely understand avoid reinjection problems, problem sources acting on different scales should be taken into consideration. Thus, in workflow, possible considered re...

A numerical model of the NW-Sabalan geothermal field was developed. The model covers a total area of 96 km and extends vertically from variable elevation of 2200-3600m a.s.l to 1,000m b.s.l. The model has 2,595 grid blocks in l4 horizontal layers. The boundary conditions and distributions of horizontal and vertical permeabilities were obtained by trialand-error matching of the initial temperatu...