Scanning the Human Body

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Presentation transcript:

Scanning the Human Body EQ: What types of scans can we use to study the human body and what do they tell us? An MRI Machine

I. Computerized Axial Tomography (CAT/CT) CT scanning adds many X-ray images with the aid of a computer to generate cross-sectional views of a patient's anatomy. CT scans are performed to analyze the internal structures of various parts of the body to view traumatic injuries CAT Scans can be used to view injuries or abnormalities in the brain to determine how to treat people appropriately

I. Computerized Axial Tomography (CAT/CT)

II. Electroencephalogram (EEG) EEG’s use small flat metal disks (electrodes) attached to the head to monitor the electrical impulses within the brain Information is taken down in a series of wavy lines This test is often used to test for epilepsy or other brain disorders that are caused by misfiring of neurons within the brain

II. Electroencephalogram (EEG) WTH!!! I thought Mom said I was getting an Egg!!!

III. Magnetic Resonance Imaging (MRI) Uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body. The magnetic field temporarily realigns hydrogen atoms in your body. Radio waves cause these aligned atoms to produce very faint signals, which are used to create cross-sectional MRI images — like slices in a loaf of bread An fMRI (functional MRI) is used to detect activity (or lack thereof) in various parts of the brain If a part of the brain is not functioning or not functioning well, then a person could have some disorders

III. Magnetic Resonance Imaging (MRI)

IV. Positron Emission Tomography (PET) In a PET scan, radioactive dye is injected into the body This dye will collect in your organs including the brain The subject is placed into a tunnel-shaped scanning machine that takes pictures of the radioactive dye in the brain This creates a 3D image of the brain This scan is primarily used in psychology to find areas of the brain that are placated due to Alzheimer's or other ailments

IV. Positron Emission Tomography (PET)