Tuesday, January 23, 2007

Importance of Physics in the Field of Medicine

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:
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.
Electrical impedance tomography
Diffuse optical imaging
Optical coherence tomography

Through Physics we nurses are able to treat diseases.
Treatment of disease
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
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.
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.


Cassidy said...

Well now I understand. I had no idea!

Randy Castro said...

that answer can be safe for us!!:)

TAHIR Nuhu said...

ok that sound good , the role of physics is essential in medicine it cant be eliminated