TABLE 1

Systems Used in the Study

SPECT systemSoftware packageNumber of detectorsCrystal dimensions (mm)Number of photomultiplier tubesCollimator
System 1Xeleris1520 × 37046LEHR
System 2Xeleris2540 × 40059LEHR
System 3eSoft2533 × 38749LEHR
System 4INTXP2530 × 39059LEHR
System 5Pegasys2508 × 38148LEGP

  • LEHR = low-energy high-resolution; LEGP = low-energy general-purpose.