If a 99mTc medronate bone image and 111In tagged white blood cell image are acquired simultaneously with a 128 x 128 word mode matrix, how much computer memory is required to store the image?

To determine the computer memory required to store the images from a 128 x 128 word mode matrix, we can break down the calculation based on the size and format of the images being acquired.

A standard word mode matrix uses 16 bits (or 2 bytes) per pixel. Since we are working with a 128 x 128 pixel matrix, we first calculate the total number of pixels:

128 pixels per row x 128 pixels per column = 16,384 pixels.

To find the total memory required, we then multiply the total number of pixels by the number of bytes per pixel:

16,384 pixels x 2 bytes per pixel = 32,768 bytes.

In kilobytes, we convert this total:

32,768 bytes / 1024 bytes per kilobyte = 32 kB.

Since the question specifies that both the 99mTc medronate bone image and the 111In tagged white blood cell image are acquired simultaneously, we need to consider the images separately. Each image requires 32 kB of memory; however, both images are stored together as single modules.

In this case, the combined total would be:

32 kB per image x 2 images = 64 kB