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Table 2 Specifications of the used phantoms

From: Performance evaluation of fifth-generation ultra-high-resolution SPECT system with two stationary detectors and multi-pinhole imaging

Phantom type

850.500

850.100

850.350

Purpose

Ultra-micro resolution phantom

Ultra-high micro resolution phantom

Ultra-high plus micro resolution phantom

Diameter of insert (mm)

24

12

12

Hight of insert (mm)

12

10

8

Diameter of hollow channels–range (mm)

0.22–0.50

0.35–0.75

0.70–1.50