Ever wonder why physics is important in the field of medicine? Well, there are numerous reasons why it is very vital to this field. One reason is “medical physics”, it is one of the branches of physics.
Medical physics is a branch of applied physics concerning the application of physics to medicine. It generally concerns physics as applied to medical imaging and radiotherapy. And what is medical imaging? Medical imaging refers to the techniques and processes used to create images of the human body (or parts thereof) for clinical purposes (medical procedures seeking to reveal, diagnose or examine disease) or medical science (including the study of normal anatomy and function. Under this are the following:
An MRI scan
Diagnostic radiology, including x-rays, fluoroscopy, mammography, Dual energy X-ray absorptiometry, angiography and Computed tomography
Ultrasound, including intravascular ultrasound
Non-ionising radiation (Lasers, Ultraviolet etc.)
Nuclear medicine, including SPECT and positron emission tomography (PET)
Magnetic resonance imaging (MRI), including functional magnetic resonance imaging (fMRI) and other methods for functional neuroimaging of the brain.
For example, nuclear magnetic resonance (often referred to as magnetic resonance imaging to avoid the common concerns about radiation), uses the phenomenon of nuclear resonance to image the human body.
Magnetoencephalography
Electrical impedance tomography
Diffuse optical imaging
Optical coherence tomography
Through Physics we nurses are able to treat diseases.
Treatment of disease
Defibrillation
High intensity focussed ultrasound, including lithotripsy
Interventional radiology
Non-ionising radiation Lasers, Ultraviolet etc. including photodynamic therapy and LASIK
Nuclear medicine, including unsealed source radiotherapy
Photomedicine, the use of light to treat and diagnose disease
Radiotherapy
Sealed source radiotherapy
Terahertz radiation
Through physics we are also able to understand the part of the body especially the brain.
ECG trace
Used to monitor and measure various physiological parameters. Many physiological measurement techniques are non-invasive and can be used in conjunction with, or as an alternative to, other invasive methods.
Electrocardiography
Electromyography
Electroencephalography
Electronystagmography
Endoscopy
Medical ultrasonography
Non-ionising radiation (Lasers, Ultraviolet etc.)
Near infrared spectroscopy
Pulse oximetry
Blood gas monitor
Blood pressure measurement
You see physics is a great help in the field of medicine without it, we are not able to enjoy what we are enjoying today in terms of treating our diseases.
Tuesday, January 23, 2007
radioactive materials
report regarding physics related to health.
my report is all about the help of physics in health. in may article below shows that physics play an important roll in preventing radioactive material entering in our body.
the advantages of knowing this information is we can prevent the radioactive material in entering in our body.w/ out the knowledges in physics study we may not know that the particles in ythe radio active material in harmfull in our body.
the disavantage of this are inspite of all dis imformation some of us still not haveng some protetion while working in a radioactive site.
It is very important to point out that everyone receives radiation from a number of natural and commonly accepted man-made sources. In fact, we contain many radioactive materials ourselves, such as a radioactive form of potassium (K-40), that was created when the earth was first formed. Common building materials, such as marble and granite, contain measurable amounts of natural radon, uranium and thorium isotopes. Medical and dental X-rays contribute to our exposure. X-rays are very similar to gamma radiation, as are the "cosmic rays" we are bombarded with as we walk down the street (or take a ride in a modern jet plane at moderate altitude). All of these contribute to our normal or "background" radiation exposure.
as we can see above, it shows that radio active materials are present aroud us so we must br aware if it for us to protect our self to its harmful effect.
i hope that with this short information may help us to be more aware of the bad effect of radioactive in our body.
my report is all about the help of physics in health. in may article below shows that physics play an important roll in preventing radioactive material entering in our body.
the advantages of knowing this information is we can prevent the radioactive material in entering in our body.w/ out the knowledges in physics study we may not know that the particles in ythe radio active material in harmfull in our body.
the disavantage of this are inspite of all dis imformation some of us still not haveng some protetion while working in a radioactive site.
It is very important to point out that everyone receives radiation from a number of natural and commonly accepted man-made sources. In fact, we contain many radioactive materials ourselves, such as a radioactive form of potassium (K-40), that was created when the earth was first formed. Common building materials, such as marble and granite, contain measurable amounts of natural radon, uranium and thorium isotopes. Medical and dental X-rays contribute to our exposure. X-rays are very similar to gamma radiation, as are the "cosmic rays" we are bombarded with as we walk down the street (or take a ride in a modern jet plane at moderate altitude). All of these contribute to our normal or "background" radiation exposure.
as we can see above, it shows that radio active materials are present aroud us so we must br aware if it for us to protect our self to its harmful effect.
i hope that with this short information may help us to be more aware of the bad effect of radioactive in our body.
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