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PLANAR IMAGING

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PLANAR IMAGING

1. Planar imaging is the acquisition of 2D nuclear images, similar to plain films in x-ray imaging.

TYPES
2. Static planar imaging: inject → wait → image. A static image can provide information on: (1) organ size, shape and position (2) regions of increased or decreased uptake. Examples: DMSA renal scan, bone scan, lung perfusion scan.

3. Dynamic planar imaging: inject → image immediately → acquire series of frames over time. A dynamic study provides information on the variation of radiopharmaceutical distribution over time. Examples: MAG3 renal scan, gallbladder emptying scan, gastric emptying scan.

4. Gated planar imaging: inject → image and collect timing data → reconstruct data into time periods. Used to study organs with regular physiological motion. Example: cardiac gated blood pool imaging - acquisition is triggered by the R wave of the ECG.


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REFERENCES

1. Bushberg, J. T. (2012). The essential physics of medical imaging. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. Find it at Amazon
2. Heggie, J. C., Liddell, N. A., & Maher, K. P. (1997). Applied imaging technology. Melbourne: St. Vincents Hospital.

Ⓒ A. Manickam 2018

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