This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
High - resolution CT of the lung is a specialized CT technique for greater detail of lung parenchyma and it utilizes - 
Select and explain. 
A. Special lung filters, B. Thick collimation, C. Bone algorithm for image reconstruction, D. Large field of view
C: Bone algorithm for image reconstruction
Answer: C: Bone algorithm for image reconstruction 
Explanation: Principles of HRCT are:-

             i)  Narrow beam collimation (thin collimation)
             ii)  High-frequency reconstruction algorithm, e.g. bone algorithm
             iii) Small field of vision