Matemáticas y estadística

What is the size of an 8cm object on a image with a 50cm field of view on a 512x512 matrix?

• 121 pixels

• 82 pixels

• 18 pixels

• 50 pixels

Most random access memory (RAM) is what type of memory?

• Drum memory

• EEPROM

• Flash memory

• Volatile memory

Convert 92 to binary.

• 01010110

• 01111101

• 01011100

• 11010000

What type of memory can be read but not edited?

• RAM

• ROM

• HD

• SDA

How many 512x512 images can be stored an a 1TB hard drive assuming 4096 shades per pixel?

• 2.6 billion

• 254 thousand

• 2.5 million

• 1.8 billion

A PET/CT scan acquires a 250 slice CT using a 512x512 pixel image grid at 16 bit pixel resolution and a 120 slice PET image using a 128 x 128 pixel image grid at 16 bit resolution. What is the total storage requirement for the PET/CT scan?

• 135MB

• 311MB

• 1080MB

• 255MB

What is 01110101 in decimal?

• 117

• 317

• 184

• 96

A modern CT scanner is able to present 4096 color levels makes a 150 slice scan. How much memory is required to hold this scan?

• 75MB

• 59MB

• 150MB

• 0.5MB

Random number generators randomly generate numbers.

• True

• False

512 x 512 images are stored on a 700MB disk. Each pixel is 16 bits. How many images can the disk hold?

• 1,400 images

• 2,800 images

• 3,500 images

• 512 images