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Table 2 Reconstruction protocols (changes to standard protocol are marked in italics)

From: Cardiac PET/CT with Rb-82: optimization of image acquisition and reconstruction parameters

Reconstruction protocols

Iterations × subsets

Filter FWHM (mm)

Difference vs. standard protocol (A)

(A) OSEM + TOF

2 × 24 = 48

6

(B) OSEM + TOF

4 × 16 = 64

6

Higher iterations × subsets product

(C) OSEM + TOF

3 × 16 = 48

4

Lower smoothing

(D) OSEM + TOF

2 × 16 = 32

6

Lower iterations × subsets product

(E) OSEM + TOF + PSF

3 × 16 = 48

6

With PSF recovery

(F) OSEM + TOF

3 × 16 = 48

8

Higher smoothing

(G) OSEM + TOF

3 × 16 = 48

6

Same product of iterations × subsets, but different iteration and subset

(H) OSEM + no TOF

3 × 16 = 48

6

No TOF correction

  1. OSEM ordered subsets expectation maximization, TOF time of flight, PSF point spread function