Nuclear Medicine is only a 2D modality.

• A. True
• B. Only in older systems
• C. Depends on technology
• D. False

Answer: (D)

Imaging in nuclear medicine includes both 2D planar views and 3D tomographic techniques. Planar scintigraphy gives flat images, but modern systems routinely acquire 3D data with SPECT or PET, which reconstruct the tracer distribution into volumetric images. SPECT rotates around the patient to build cross‑sectional slices, while PET uses coincidence detection to produce 3D activity maps. These 3D datasets, often fused with CT (SPECT/CT or PET/CT), provide precise anatomical localization and quantification. So nuclear medicine is not limited to 2D; 3D imaging is standard in current practice. The other options are less accurate because older systems are not the sole context, and “depends on technology” doesn’t reflect that today’s technology routinely enables 3D imaging.