Compared to a 2 mm reconstruction slice thickness, a 1 mm slice thickness will result in which of the following?

Compared to a 2 mm reconstruction slice thickness, a 1 mm slice thickness will result in which of the following?

• A. Decreased image noise
• B. Decreased spatial resolution
• C. Increased number of image slices
• D. Increased spatial resolution

Answer: (D)

Choosing a slice thickness of 1 mm compared to a thicker 2 mm slice significantly improves spatial resolution in CT imaging. Spatial resolution refers to the ability to distinguish between small objects that are close to each other within the image. Thinner slices allow for better identification of fine details and subtle structures, as they provide a more precise delineation of anatomy and pathologies. When a thinner slice is acquired, the increased number of slices (which is also an outcome of reducing the slice thickness) allows for more data to be collected from the scanned area. This results in a reconstruction that has enhanced detail and clarity, making smaller anatomical features and differences more recognizable. The relationship is such that decreasing the slice thickness generally increases the spatial resolution, enabling better diagnostic capabilities, particularly in complex or intricate areas of the body. This is critical for accurate evaluation and treatment planning in medical imaging.

Choosing a slice thickness of 1 mm compared to a thicker 2 mm slice significantly improves spatial resolution in CT imaging. Spatial resolution refers to the ability to distinguish between small objects that are close to each other within the image. Thinner slices allow for better identification of fine details and subtle structures, as they provide a more precise delineation of anatomy and pathologies.

When a thinner slice is acquired, the increased number of slices (which is also an outcome of reducing the slice thickness) allows for more data to be collected from the scanned area. This results in a reconstruction that has enhanced detail and clarity, making smaller anatomical features and differences more recognizable.

The relationship is such that decreasing the slice thickness generally increases the spatial resolution, enabling better diagnostic capabilities, particularly in complex or intricate areas of the body. This is critical for accurate evaluation and treatment planning in medical imaging.