Other imaging techniques and their added value to diagnose elbow dysplasia

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Diagnostic imaging of the canine stifle

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Dysplastic elbow diseases in dogs

Elbow dysplasia (ED) is a term used to describe the most common causes of elbow lameness. The term refers to ununited anconeal process (UAP), fragmented coronoid process (FCP), osteochondritis dissecans (OCD) and elbow incongruity, according to the International Elbow Working Group (IEWG). All conditions are polygenetic and multifactorial diseases that often occur in young, popular breeds. Elbow incongruity has been suggested as a causative factor in most of these pathologies. The aim of this review was to describe the etiology and clinical appearance on radiography, computed tomography (CT) and arthroscopy, together with their treatment options and prognosis.Elleboogdysplasie is een term die de meest voorkomende oorzaken van elleboogmanken groepeert. Volgens de International Elbow Working Group (IEWG) omvat deze groep losse processus anconeus (LPA), losse processus coronoideus (LPC), osteochondritis dissecans (OCD) en elleboogincongruentie. Iedere aandoening is polygenetisch en multifactorieel en komt vaak voor bij jonge, populaire hondenrassen. Elleboogincongruentie wordt bovendien genoemd als een oorzakelijke factor bij de meeste van deze aandoeningen. Het doel van dit artikel is een overzicht te geven van de etiologie, van het klinisch beeld op radiografie, computer tomografie (CT) en artroscopie, en van de behandelingsopties en de prognose na de behandeling van de verschillende aandoeningen

An intuitive handheld acoustic noise source finder

ABSTRACT - An apparatus has been developed to find acoustic sound sources in the near field of a radiating object operating in a noisy environment. It is based on two orthogonally placed particle velocity probes (two Microflowns[1], [2]). The complete signal processing is done in real time with battery powered analogue circuitry, resulting in a very small and handheld measurement device. One Microflown is used to display the sound level and to listen to the source whilst rejecting the background noise and another Microflown is used to create a stereo\ud indication in which direction the device must be moved to pinpoint the noise source

Single exciton spectroscopy of single-Mn doped InAs quantum dots

The optical spectroscopy of a single InAs quantum dot doped with a single Mn atom is studied using a model Hamiltonian that includes the exchange interactions between the spins of the quantum dot electron-hole pair, the Mn atom and the acceptor hole. Our model permits to link the photoluminescence spectra to the Mn spin states after photon emission. We focus on the relation between the charge state of the Mn, $A^0$ or $A^-$, and the different spectra which result through either band-to-band or band-to-acceptor transitions. We consider both neutral and negatively charged dots. Our model is able to account for recent experimental results on single Mn doped InAs PL spectra and can be used to account for future experiments in GaAs quantum dots. Similarities and differences with the case of single Mn doped CdTe quantum dots are discussed.Comment: 15 pages, 9 figure