2d osem/map reconstruction algorithm  (Siemens AG)

Journal: EJNMMI Research

Article Title: Quantitative capabilities of four state-of-the-art SPECT-CT cameras

doi: 10.1186/2191-219X-2-45

Figure Lengend Snippet: Main characteristics of the four SPECT-CT systems used in the study

Article Snippet: For some Siemens Symbia T6 data, Siemens 2D OSEM reconstruction was also performed with eight subsets.

Techniques: Single Photon Emission Computed Tomography

Journal: EJNMMI Research

Article Title: Quantitative capabilities of four state-of-the-art SPECT-CT cameras

doi: 10.1186/2191-219X-2-45

Figure Lengend Snippet: Quantification error obtained for the three calibration phantoms and the three test phantoms. The error is plotted as a function of the calibration phantom ROI diameter expressed as a percentage of the phantom physical diameter for the four SPECT-CT systems. The quantification was performed for the uniform part of the contrast (red) or NEMA NU 2–1994 attenuation and scatter correction accuracy (green) phantom and the S phantom (blue) using the conversion factor obtained with the M (triangle), L (square), or XL (diamond) phantom. All reconstructions with 24 iterations and eight subsets. ( A ) Philips Brightview XCT. ( B ) General Electric Discovery NM/CT 670. ( C ) General Electric Hawkeye 4. ( D ) Siemens Symbia T6.

Article Snippet: For some Siemens Symbia T6 data, Siemens 2D OSEM reconstruction was also performed with eight subsets.

Techniques: Single Photon Emission Computed Tomography

Journal: EJNMMI Research

Article Title: Quantitative capabilities of four state-of-the-art SPECT-CT cameras

doi: 10.1186/2191-219X-2-45

Figure Lengend Snippet: Mean quantification error for 60% to 90% ROI diameter of the calibration phantom physical diameter

Article Snippet: For some Siemens Symbia T6 data, Siemens 2D OSEM reconstruction was also performed with eight subsets.

Techniques:

Journal: EJNMMI Research

Article Title: Quantitative capabilities of four state-of-the-art SPECT-CT cameras

doi: 10.1186/2191-219X-2-45

Figure Lengend Snippet: Transverse and coronal slices of the M phantom obtained after 24 iterations. ( A , E ) Philips Brightview XCT and Astonish. ( B , F ) General Electric Discovery NM/CT 670 and Evolution for Bone. ( C , G ) General Electric Hawkeye 4 and Evolution for Bone. ( D , H ) Siemens Symbia T6 and Flash3D. All are reconstructions with eight subsets. Hot-iron color scale from 0% to 110% of slice maximum.

Article Snippet: For some Siemens Symbia T6 data, Siemens 2D OSEM reconstruction was also performed with eight subsets.

Techniques:

Journal: EJNMMI Research

Article Title: Quantitative capabilities of four state-of-the-art SPECT-CT cameras

doi: 10.1186/2191-219X-2-45

Figure Lengend Snippet: Transverse reconstructed slices of the M phantom imaged with the Symbia T6. ( A , B , C ) Circular orbit. ( D ) Non-circular orbit. ( A ) FBP. ( B ) Flash3D and six iterations. ( C , D ) Flash3D and 24 iterations. All are reconstructions with eight subsets. Hot-iron color scale from 0% to 110% of slice maximum.

Article Snippet: For some Siemens Symbia T6 data, Siemens 2D OSEM reconstruction was also performed with eight subsets.

Techniques:

Journal: EJNMMI Research

Article Title: Quantitative capabilities of four state-of-the-art SPECT-CT cameras

doi: 10.1186/2191-219X-2-45

Figure Lengend Snippet: Coronal reconstructed slices of the Picker’s thyroid phantom. ( A , B , C ) Six iterations. ( D , E , F ) 24 iterations. ( A , D ) Philips Brightview XCT and Astonish. ( B , E ) General Electric Infinia Hawkeye 4 and Evolution for Bone. ( C , F ) Siemens Symbia T6 and Flash3D. All are reconstructions with eight subsets. Hot-iron color scale from 0% to 110% of slice maximum.

Article Snippet: For some Siemens Symbia T6 data, Siemens 2D OSEM reconstruction was also performed with eight subsets.

Techniques:

Journal: EJNMMI Research

Article Title: Quantitative capabilities of four state-of-the-art SPECT-CT cameras

doi: 10.1186/2191-219X-2-45

Figure Lengend Snippet: Coronal and transverse reconstructed slices of the M phantom imaged with Symbia T6. ( A , B ) Siemens Flash3D. ( C , D ) Siemens OSEM 2D with resolution recovery in the transverse plane. All are reconstructions with eight subsets and 24 iterations. Hot-iron color scale from 0% to 110% of slice maximum.

Article Snippet: For some Siemens Symbia T6 data, Siemens 2D OSEM reconstruction was also performed with eight subsets.

Techniques: