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3D Breast Tomosynthesis*
"In my recently published study, comparing digital mammography and breast tomosynthesis, it is shown that cancer visibility with tomosynthesis is superior to digital mammography, which indicates that breast tomosynthesis may have a higher sensitivity for breast cancer detection." – Dr. Ingvar Andersson, University Hospital Malmö, Sweden
Digital tomosynthesis for mammography has shown promise to overcome the limitations of projection mammography. The main limitation of both screen/film mammography and digital mammography is the fact that the 3D anatomical information is projected into a 2D image plane. Therefore, anatomical structures that overlap the tumors limit the radiologist’s ability to detect certain cancers. With breast tomosynthesis several views of the breast are acquired from different viewing angles and slice images are reconstructed into a 3D volume set.
| Principle | Potential |
|---|---|
Tomosynthesis reduces tissue overlap through
|
Tomosynthesis improves the specificity through
Tomosynthesis improves the sensitivity through
Leading to
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Technical Specifications**
- Angular range ±25 degrees
- Scan time approx. 20 s
- 25 projections
- Fast aSe detector, 24 x 30 cm, 85µm pixel size
- Frame rate up to 2 images/s
- CC, MLO and all common projection views
- High DQE at low dose
Tomosynthesis with MAMMOMAT Inspiration
MAMMOMAT Inspiration is the first system in industry implementing all screening and diagnostic opportunities as biopsy and tomosynthesis (WIP). Its basic system architecture including stand, generator, detector and software is already prepared for future 3D imaging with tomosynthesis.
MAMMOMAT Inspiration – Inspired by you
TomoViewer with syngo MammoReport
For optimized reading of breast tomosynthesis images acquired with MAMMOMAT Inspiration, Siemens’ breast care workstation syngo MammoReport with the optional TomoViewer*** (WIP) is available. With syngo MammoReport you benefit from fast reading and dedicated mammography tools for reporting.
* Work in progress / Caution: Investigational Device. Limited by U.S. Federal law to investigational use. Digital breast tomosynthesis is not commercially available in the U.S. and its future availability cannot be assured.
** Siemens reserves the right to modify specifications without prior notice.
*** Available with software version VB23 of syngo MammoReport
Case Studies
Tumor: 28 mm invasive ductal carcinoma grade 3 (5/19)
Publications
I. Andersson et al.: Breast tomosynthesis and digital mammography: a comparison of breast cancer visibility and BIRADS classification in a population of cancers with subtle mammographic findings
Eur Radiol DOI 10.1007/s00330-008-1076-9 (2008)
Digital Breast Tomosynthesis
By Axel Hebecker, Thomas Mertelmeier, Jasmina Orman; Siemens AG, Medical Solutions, 91050 Erlangen, Germany and Jay Baker, Joseph Lo; Duke University Medical Center, Durham NC 27710, USA
MEDICAL SOLUTIONS November 2006
T. Mertelmeier et al.: Optimizing filtered backprojection reconstruction for a breast tomosynthesis prototype device.
Proc. SPIE 6142, 131-142 (2006)
J. Orman et al.: Adaptation of Image Quality Using Various Filter Setups in the Filtered Backprojection Approach for Digital Breast Tomosynthesis.
Susan M. Astley et al. (Eds.): IWDM 2006, LNCS 4046, 175 – 182, (2006)
M. Bissonnette et al.: Digital breast tomosynthesis using an amorphous selenium flat panel detector
Proc. SPIE 5745, 529-540 (2005)
