The primary purpose of using an anti-scatter grid in radiography is to:
- A Increase the tube current
- B Improve image contrast by reducing scatter radiation reaching the detector ✓
- C Reduce patient dose
- D Decrease the exposure time
Correct answer: B. Improve image contrast by reducing scatter radiation reaching the detector
Explanation
Anti-scatter grids absorb scattered radiation before it reaches the detector, thereby improving image contrast. However, they require increased exposure (Bucky factor), which increases patient dose. Option C is incorrect because grids actually increase patient dose.
Reference: Radiologic Science for Technologists, 12th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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