Biomedical Engineering Reference
In-Depth Information
(a)
(b)
FIGURE 10.4: (See color insert.) MR-PET: (a) detector layout of Siemens
BrainPET™(prototype) and (b) design study of whole-body MR-PET.
(a)
(b)
FIGURE 10.5: (See color insert.) MR-PET: Prototype. (a) Siemens pro-
totype BrainPET™(Works in Progress, The product is under development
and is not commercially available. (b) MR-PET study (courtesy of University
Tubingen, Germany).
Combining MR with SPECT will add additional challenges. SPECT sys-
tems typically require a rotating/moving collimator (with or without a mov-
ing scintillator) to allow the acquisition of all the projections necessary to
reconstruct the tomographic images. A solution for such an MR-compliant
collimator needs still to be found. For MR-SPECT a side-by-side design may
be the only feasible one, of course prohibiting a simultaneous acquisition of
SPECT and MR data sets.
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