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Design and evaluation of the MAMMI dedicated breast PET
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10.1118/1.4742850
/content/aapm/journal/medphys/39/9/10.1118/1.4742850
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/39/9/10.1118/1.4742850

Figures

Image of FIG. 1.
FIG. 1.

Detector ring. (Left) Photograph of the MAMMI detector ring. (Right) Schematic of the ring showing the 186 mm detector geometric aperture and the 170 mm transaxial FOV.

Image of FIG. 2.
FIG. 2.

Photo of the MAMMI cart with the detector ring inserted into the special hanging breast device.

Image of FIG. 3.
FIG. 3.

Sketches of the (a) AC-Phantom I and (b) AC-Phantom II (all units are in mm).

Image of FIG. 4.
FIG. 4.

Linear source phantoms used for the sensitivity determination.

Image of FIG. 5.
FIG. 5.

NEC phantom (all units are in mm).

Image of FIG. 6.
FIG. 6.

(a) and (b) Reconstructed images of AC-Phantoms I and II after 12 MLEM iterations considering the AC.

Image of FIG. 7.
FIG. 7.

Percent contrast (in %) dependence on the number of iterations (AC-Phantoms I and II) (a) and (b).

Image of FIG. 8.
FIG. 8.

Background variability (in %) dependence on the number of iterations. (a) BV of AC-Phantom I calculated without considering those ROIs influenced by the inserts. (b) The BV of AC-Phantom II calculated considering all 60 ROIs.

Image of FIG. 9.
FIG. 9.

MAMMI FWHM spatial resolution without DOI information at several radial positions. (a) at the axial FOV center and (b) at 1/4 of the axial FOV.

Image of FIG. 10.
FIG. 10.

Variation of the FWHM of a point-like source placed in the center of the FOV.

Image of FIG. 11.
FIG. 11.

(a) MAMMI absolute slice sensitivity obtained with a 22Na point-like source. (b) MAMMI average sensitivity percentage per slice obtained with a 18F line source.

Image of FIG. 12.
FIG. 12.

Total, trues, random, scattered, and NEC count rate for the (250 keV–750 keV) energy window as a function of the activity in the NEC phantom detailed in Fig. 5.

Tables

Generic image for table
TABLE I.

Percent contrasts (in %) obtained with AC-Phantom I after 12 and 50 MLEM iterations.

Generic image for table
TABLE II.

Percent contrasts (in %) obtained with AC-Phantom II after 12 and 50 MLEM iterations.

Generic image for table
TABLE III.

Performance parameters of some recent reported dedicated breast PET scanners and comparison with the WB-PET GE Discovery 600.

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/content/aapm/journal/medphys/39/9/10.1118/1.4742850
2012-08-15
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Design and evaluation of the MAMMI dedicated breast PET
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/39/9/10.1118/1.4742850
10.1118/1.4742850
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