Single photon emission computed tomography

INTRODUCTION “If we knew what it was we were doing, it would not be called research, would it?” - Albert Einstein (1879 - 1955) An image is a 2 dimensional representation of a 3 dimensional scene. A Digital Image is a graphical representation of an object. Digital Image Processing abbreviated as DIP is the manipulation of digital image by a processor. Image Registration is one of the techniques used in Digital Image Processing. Registration refers to merging and fusion of 2 or more data. Image Registration

Hydrogen, nuclei become more stable as there are more protons and neutrons, until Iron. After that, the trend reverses. becomes stable. This process is called a radioactive series. For example, the series for U238 will go through 8 alpha emissions and 6 beta emissions before becoming the stable nucleus Pb-206. The curve of stable nuclei portrays in Figure 2 is the result of the balancing act between the various repulsive and attractive effects [1]: • Electric force, repulsive, is the obvious electric

Increased Na+conductance (B, upper panel) creates a situation in which a single action potential initiates sustained depolarization as a PDS (B, lower panel). Decreased K+ conductance (C, upper panel) also can predispose to PDS. (Adapted with permission from Chang BS, Lowenstein DH. Epilepsy. N Engl J Med 2003;349:1261. Copyright

9. Creutzfeldt-Jakob disease (CJD) It is a rare, degenerative but fatal brain disorder affecting very a small fraction of persons. The symptoms usually arise at the age of 60 and the person dies within a year. Many researchers believe that this disorder is the result of an abnormal protein known as prion. About 5-10% cases reported in the United States share a genetic basis where this form of dementia is caused by a mutation in the gene for the prion protein. Patients with Creutzfeldt-Jakob disease

Student ID number: 1704918 Does dysfunction of the prefrontal cortex lead to antisocial behaviour? Word count: 984   Antisocial behaviour (ASB) broadly encompasses human character traits and behaviours that are generally viewed as unpleasant or immoral, such as reduced empathy, aggression and violence. Consequently, ASB is unconducive to forming healthy interpersonal relationships and functional living and on a large scale is socio-economically detrimental to societies. Therefore

also be know to what certain isotopes have stable nuclei and others which are unstable and what makes them radioactive. This radiation is usually in 1 of 3 types which are alpha, beta or gamma radiation. (McCall) Pharmacists must also know neutron emission, which is the process in which an unstable atom can eject a neutron from the nucleus and become more stable. (Gagnon) Nuclear decay equations are where students learn that the total number of nucleons (the neutrons and protons) is conserved when

And Tau is the only cause for dementia but in AD there is no correlation between amyloid plaques alone and the decline of cognition as Tau is the main component of toxicity that cause the dementia disease in AD. Structural and functional neuroimaging such as MRI is a sensitive and accurate tool to differential diagnosis between AD and FTD phenotypes as In AD there id brain weight and volume reduction in specific brain regions than others such as hippocampus and entorhinal cortex and a distinctive

While some patients opt for surgery in order to relieve the painful symptoms of fibromyalgia, many utilize the alternative methods mentioned above. Fibromyalgia syndrome impairs the quality of life of two to four percent of the population and affects predominantly females with 9:1 female to male ratio (citation needed Whit et al. 2015). Therefore, some researchers suggest that fibromyalgia might be associated with serum testosterone levels. Patients with fibromyalgia syndrome have increased sensitization

tissues of the body, presenting a challenge of marking the cell while also maintaining their viability. Several imaging technologies are being utilized to progress stem cell therapies. Such modalities include “positron emission tomography (PET), computed tomography (CT), single photon emission CT (SPECT), ultrasound (US), bioluminescence imaging (BLI), fluorescence imaging (FLI), [and] magnetic resonance imaging (MRI),”(Cho, Wang, Mao, & Chan, 2016) while “MRI and PET are the most widely investigated and

A brief overview of epilepsy Epilepsy refers to a group of mental disorders. These disorders have different symptoms, causes and treatments. They all range in severity, some being life-threatening and others being benign. The common thread that ties these disorders together are that they have the symptom of seizures, and all have the same direct cause. A seizure is caused when the electrical pattern of neuronal movement is disrupted by an abnormal current. This can result in muscle spasms, loss of