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Science in Medicine: Exploring MRI, X-Rays, and Radiation Therapy
MRI Scanning
Magnetic resonance imaging (MRI) uses strong magnetic fields and radio waves to create detailed body images.
X-Rays
X-rays are high-energy electromagnetic waves that penetrate soft tissues but are absorbed by denser materials like bones.
Radiation Therapy
Uses high-energy radiation to destroy cancerous cells while sparing healthy tissue.
Applications in Diagnostics and Treatment
MRI
- Provides high-resolution images for diagnosing soft tissue conditions.
X-Rays
- Essential for detecting fractures and dental imaging.
Radiation Therapy
- Targets tumors with precision using techniques like gamma knives.
Example Problem
An X-ray machine operates at 
and generates a current of 
. Calculate the power used.
- Formula:
![\[ P = IV \]]( "Rendered by QuickLaTeX.com")
- Substitute Values:
![\[ P = 5 \times 10^{-3} \cdot 120 \times 10^{3} = 600 \, \text{W} \]]( "Rendered by QuickLaTeX.com")
![\[ P = IV \]](https://www.on22.com/wp-content/ql-cache/quicklatex.com-b6006b1b118cb79770cd28f3d63a9a8d_l3.png "Rendered by QuickLaTeX.com")
![\[ P = 5 \times 10^{-3} \cdot 120 \times 10^{3} = 600 \, \text{W} \]](https://www.on22.com/wp-content/ql-cache/quicklatex.com-186840de8b9457be1f8252eb7ebb741a_l3.png "Rendered by QuickLaTeX.com")
at 
.
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