Question

If the radiologist requires 2 mm thick contiguous slices through the pituitary, and 2.4 cm of coverage, how many slices are necessary?

1) 8
2) 10
3) 12
4) 13

Answer 1

To find out how many 2 mm thick slices are needed to cover 2.4 cm, the coverage is converted to millimeters (24 mm). Dividing by the thickness of one slice (2 mm) gives us a total of 12 slices required.

Step-by-step explanation:

If the radiologist requires 2 mm thick contiguous slices through the pituitary, and 2.4 cm of coverage, you would first convert the coverage needed into millimeters. Since 1 cm equals 10 mm, 2.4 cm is equal to 24 mm. Now, if each slice is 2 mm thick, you would divide the total coverage by the thickness of one slice to find out how many slices are needed:

Total number of slices = Total coverage in mm / Thickness of one slice in mm

Total number of slices = 24 mm / 2 mm

Total number of slices = 12

So, the number of slices necessary is 12.