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
[{'content': 'High - resolution CT of the lung is a specialized CT technique for greater detail of lung parenchyma and it utilizes - \nSelect and explain. \nA. Special lung filters, B. Thick collimation, C. Bone algorithm for image reconstruction, D. Large field of view', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Principles of HRCT are:-\n\n\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0i)\xa0\xa0Narrow beam collimation (thin collimation)\n\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0ii) \xa0High-frequency reconstruction algorithm, e.g. bone algorithm\n\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0iii) Small field of vision', 'role': 'assistant'}]