SPECT imaging acquires data by rotating the gamma camera detector around the patient. What is the primary benefit over planar scintigraphy?

SPECT imaging acquires data by rotating the

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AThree-dimensional tomographic images with improved lesion contrast
BHigher sensitivity due to removing the collimator
CShorter acquisition time for whole-body scans
DElimination of attenuation artifacts

✓ Correct answer: A. Three-dimensional tomographic images with improved lesion contrast SPECT reconstructs true 3-D cross-sectional images, dramatically improving contrast-to-noise for small or deep lesions compared to planar projection imaging. Attenuation artifacts still exist in SPECT (corrected separately); sensitivity is not increased by removing the collimator.

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SPECT imaging acquires data by rotating the gamma camera detector around the patient. What is the primary benefit over planar scintigraphy?

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