Single photon emission computed tomography

within the body. These tracers are usually isotopes that have a short life and are associated with some chemical compounds which allow certain physiological processes to be examined. These tracers are given by injection, inhalation or by the mouth. Single photons are detected by a gamma camera which can see the organs from any point of view. The gamma camera creates an image from the points from when the radiation is emitted; the image is enhanced by a computer and viewed by a physician on a…

“There are about 100,000 miles of blood vessels in the human brain.” This is one of the many interesting things about the human brain. Neurologists get the chance to break down and study the human brain. Since neurology is such a fast changing occupation, neurologists are always learning new things about the human brain before anyone else. Someone interested in neurology should like to be around people, be able to go without sleep for long periods of time, and always be comfortable and able to…

Single-photon emission computed tomography (SPECT): SPECT is a type of nuclear imaging test that describes how blood flows to tissues and organs. Before the SPECT scan, the chemical injection is injected o human body that is radiolabled, means it emits gamma rays that can…

sodium hydroxide solution with high chemical and radiochemical purity. Its radioactive concentration lies at 4 to 11 GBq/ml. Cyclotron produced radioiodines Iodine-123 represents widely used cyclotron-produced radioisotope for single-photon emission computed tomography (SPECT). Nuclear reaction which yields Iodine-123 directly via proton bombardment of tellurium targets in a cyclotron with subsequent separation of this radioiodine from the irradiated target represents most commonly utilized…

myocardial imaging along with exercise helped advance the use of radiopharmaceuticals along with exercise testing. The advancement in technology allowed for the progression from ECG exercise testing to the use of Single Photon Emission Computed Tomography (SPECT) and Positron Emission Tomography (PET) to provide improvements in diagnostic efficacy. Pharmacologic testing has grown in its use as most people who are in need of an exercise test typically have a restriction on the amount of physical…

People are awake the majority of the day, but a large portion of the day is consumed by sleeping. A good night’s rest is essential because without an appropriate amount of sleep, the hours spent awake can become impacted. Unfortunately, sleep disorders can affect a person’s sleeping abilities. Narcolepsy is one example of a sleep disorder that will affect someone at night and through the day. Narcolepsy can be defined as a neurological disorder where the person experiences daytime sleepiness…

The Walking Dead Syndrome Imagine living in a distorted reality; where you aren’t actually aware of being a fully functioning human individual who is alive and breathing. This is what Cotard’s Delusion does to those affected with it. Being an exceptionally rare syndrome, there is not much known about it besides the few individual studies recorded over the years. Cotard’s Delusion is a mental illness where the person who has contracted this syndrome delusionally believes that they’re either…

Brain Nuclear Scan Nuclear Brain scanning is a type of nuclear imaging test, which means it uses a radioactive substance and a special camera to create a 3-D pictures. While image tests such as x-rays can show what the structure inside your body looks like, a Nuclear scan produces images that show how the organs work. The reason I choice nuclear brain scanning, do to the fact my step mom has Epilepsy that she has acquired from a brain disorder from damage in the temporal lobe area. She…

Cancer, we hear about it every day. More and more people being diagnosed as the years pass on. Out of all the types of cancer there is one that keeps us mind blown the most and that’s brain cancer. With 78’000 people diagnosed a year, 28’000 being adults, 13’350 men and 10’420 women with 4’000 being kids. Brain cancer is a real mystery from the history of it, how it starts in the brain, and the causes of it to the new treatments that are coming into play. Throughout recorded history humans and…

1. Neurogenesis and memory 1.1. Neurogenesis in the hippocampus The hippocampus is a brain region that responsible for learning, memory and mood. One of the important reasons for memory and mood dysfunction is the dentate gyrus (DG) reduction [12, 13]. The subventricular zone (SVZ) and the subgranular zone (SGZ) of neural progenitor cells generated neurons and glia in adulthood and during adulthood [14]. Neurogenesis also have a role in mood regulation; the dorsal hippocampus is an…