• New software improves image quality when performing low-dose CT
• Available on Siemens’ new SOMATOM Force CT system
Siemens Healthcare has received 510(k) clearance from the Food and Drug Administration (FDA) for ADMIRE (Advanced Modeled Iterative Reconstruction), the company’s new image reconstruction algorithm for computed tomography (CT). ADMIRE supplements SAFIRE (Sinogram Affirmed Iterative Reconstruction), Siemens’ raw-data based iterative reconstruction algorithm, which can provide a radiation dose reduction of up to 60 percent.¹ ² The goal in CT imaging is to use a dose level that is as low as reasonably achievable. Low-dose imaging is sometimes limited because using less radiation tends to reduce image quality. ADMIRE improves reconstructed image quality and can result in images with a natural image impression,³ thus enabling previously unachievable low-dose imaging in many studies.
Now available on the SOMATOM Force – Siemens’ new dual-source CT system – ADMIRE uses additional modeling loops that help deliver improved resolution at high contrast edges. With the combination of SAFIRE, ADMIRE and the technology in the SOMATOM Force, Siemens can deliver studies at very low doses that maintain image quality and preserve image impression.
1 In clinical practice, the use of SAFIRE may reduce CT patient dose depending on the clinical task, patient size, anatomical location, and clinical practice. A consultation with a radiologist and a physicist should be made to determine the appropriate dose to obtain diagnostic image quality for the particular clinical task. The following test method was used to determine a 54 to 60% dose reduction when using the SAFIRE reconstruction software. Noise, CT numbers, homogeneity, low-contrast resolution, and high contrast resolution were assessed in a Gammex 438 phantom. Low-dose data reconstructed with SAFIRE showed the same image quality compared to full-dose data based on this test. Data on file.
2 In clinical practice, the use of ADMIRE may reduce CT patient dose depending on the clinical task, patient size, anatomical location, and clinical practice. A consultation with a radiologist and a physicist should be made to determine the appropriate dose to obtain diagnostic image quality for the particular clinical task.
3 In terms of outliers in the pixel noise structure.
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The Siemens Healthcare Sector is one of the world's largest suppliers to the healthcare industry and a trendsetter in medical imaging, laboratory diagnostics, medical information technology and hearing aids. Siemens offers its customers products and solutions for the entire range of patient care from a single source – from prevention and early detection to diagnosis, and on to treatment and aftercare. By optimizing clinical workflows for the most common diseases, Siemens also makes healthcare faster, better and more cost-effective. Siemens Healthcare employs some 52,000 employees worldwide and operates around the world. In fiscal year 2013 (to September 30), the Sector posted revenue of 13.6 billion euros and profit of 2.0 billion euros. For further information, please visit: www.siemens.com/healthcare