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EJNMMI Physics
Fig. 1 | EJNMMI Physics

Fig. 1

From: Hybrid kernelised expectation maximisation for Bremsstrahlung SPECT reconstruction in SIRT with 90Y micro-spheres

Fig. 1

a CT image with the ROIs for the NEMA phantom; b image used as anatomical image and obtained by removing the spheres S6 and S3 from the CT in 1a; c Magnification of the SPECT reconstructed images with HKEM and FHKEM for the NEMA phantom. The image is zoomed in on the phantom area containing spheres S1, S5 and S6. Within the white circle is shown a false small region of activity in the HKEM image which is not shown in FHKEM. d Background (bgr) and hot ROIs example for the patient data using FHKEM. All The images show the transaxial direction

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