Question

Describe multiple modalities of imaging simply.

Answer 1

Imaging techniques is used in creating images of multiple parts of human body acoording to our choice and need for different purposes like diagnosis, prognosis etc of a disorder

Multiple modalities are

1. X ray imaging techniques-in this method X ray radiation are used and when the impressions of xrat radiation are red in a filim . This helps in diagnosis of specific bone fractures as well as lung disorders
2. Computed tomography techniques- in CT a patient is made to lie on a bed of the CT machine and is allowed to move in . A number of x-ray of the specific or complete body part is taken to diagnose the condition. CT is important in detection of strock and other conditions
3. Positron emission computed tomography-in this techniqie a radioactive neucletides is injected into the body's and a machine detect the radiation emitted and the metabolic activity of body .
4. Magnetic resonance imaging techniques - in this procedure patient is made to stay on a bed and is under a strong magnetic field where the protons of his body will align in a specific position. A pulse of electric current is then introduced that cause spinning of the protons on body. Magnetic field gradient and protons alight all of these give an accurate idea . This is radiation free and is helpful in pregnancy
5. Ultrasonography-in this techniqie ultrasound rays are introduced to get and image . Mainly helpful in detecting abnormalities in thorax and abdomen region

These are the mainly used imaging techniques