Spontaneous haemarthrosis in the absence of anticoagulant medication or a bleeding disorder is a very rare complication after total knee arthroplasty. A case of recurrent spontaneous haemarthrosis following total knee replacement in a 69-year-old patient is reported. Angiography was used to aid the diagnosis. It demonstrated an abnormal blush of vessels around the anterior aspect of the knee jo...

The extensive vascularity of extra and intracranial neoplasms is vulnerable to superselective intraarterial injection of embolic particles. The goal is to inject embolic material such as polyvinyl alcohol particles, gelfoam powder, fibrin glue, microfibrillar collagen, or gelatin microspheres until the vascular blush is completely obliterated. The angiographic supply pattern determines the like...

Coronary artery fistula is a rare congenital anomaly. Most patients with this anomaly are asymptomatic, but some may develop heart failure, myocardial ischemia or arrhythmias. We report a case of a patient who presented with myocardial ischemia secondary to persistent Thebesian veins. Coronary angiography demonstrated a marked capillary blush draining into the left ventricular cavity through mu...

This paper shows how the information enclosed in a colour image of a bi-colour apple can be used to segment defects. A method to segment pixels, based on a Bayesian classification process, is proposed. The colour frequency distributions of the healthy tissue and of the defects were used to estimate the probability distribution of each class. The results showed that most defects, namely bitter p...

I present a local, deterministic model of the EPR-Bohm experiment, inspired by recent work by Joy Christian, that appears at first blush to be in tension with Bell-type theorems. I argue that the model ultimately fails to do what a hidden variable theory needs to do, but that it is interesting nonetheless because the way it fails helps clarify the scope and generality of Bell-type theorems. I f...

Tough economic times stir up anxiety over the affordability of public services—especially healthcare. As governments struggle to balance budgets, and healthcare spending continues to grow faster than the economy, conditions are ripe for old—and often discredited—policy ideas to make a comeback. User fees are no exception. At first blush, user fees appear to be an obvious solution. After all, an...

Background Impaired microvascular reperfusion (no-reflow) and unsuccessful infarct-related artery (IRA) revascularization are associated with a worse clinical outcome in patients with ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (pPCI). Reperfusion can be identified by epicardial or microvascular flow determined by angiography as Thr...

The aim of this work was to show contribution of power Doppler imaging in the diagnosis of the carotid body tumors. Six patients with a nontender mass beneath the mandibular angle were evaluated with gray scale and power Doppler sonography. Well-defined, solid, weakly hyperechoic masses were noted on gray scale sonography in the carotid bifurcation. Power Doppler sonography showed abundant flow...

The Self-Reconciling Evidential Database (SED) is a tool for intelligence analysu that combines a numerical uncertainty calculus with a process of higher-order reasoning about knowledge and assumptions. SED includes (1) a natural representation of evidential arguments in terms of a normal or first-blush reaction to the evidence plus a set of exception conditions, (2) a modeling technique that d...

Five cases of focal tuberculous cerebritis, seen over a period of 10 years, revealed unique clinicoradiologic patterns that differentiate these lesions from other forms of cerebral tuberculosis. Histologically, the process consists of microgranulomata, a lymphocytic infiltrate, Langhans' giant cells, epithelioid cells, and variable evidence of rare tubercle bacilli. The relatively poor clinical...