Newer Gamma Cameras have up to _______ heads

Newer Gamma Cameras have up to _______ heads

• A. One
• B. Two
• C. Three
• D. Four

Answer: (C)

Multi-head detector design is the core idea here. Adding detector heads around the patient increases angular sampling and sensitivity, which improves image quality and speeds up image acquisition in SPECT. With a single head, you’re limited to the angles you can sample and you usually need longer scans. Two heads let you collect data from more angles at once, which helps but is still not as efficient. Three heads around the patient provide considerably better coverage in a single rotation, giving faster acquisitions and better resolution without the added complexity and cost of more heads. While four-head systems exist, three heads are a common, practical maximum for many newer gamma cameras, making it the typical answer in this context.

Multi-head detector design is the core idea here. Adding detector heads around the patient increases angular sampling and sensitivity, which improves image quality and speeds up image acquisition in SPECT. With a single head, you’re limited to the angles you can sample and you usually need longer scans. Two heads let you collect data from more angles at once, which helps but is still not as efficient. Three heads around the patient provide considerably better coverage in a single rotation, giving faster acquisitions and better resolution without the added complexity and cost of more heads. While four-head systems exist, three heads are a common, practical maximum for many newer gamma cameras, making it the typical answer in this context.