MR SmartSpeed

To understand the impact Philips SmartSpeed can bring to clinical practice, we show the proven value of Compressed SENSE, which has been available since early 2018, and implemented globally. Compressed SENSE allows for productivity enhancement by reducing the scan times of individual acquisitions by up to 50%⁴ and of full exams by 20-30%¹. The Philips SmartSpeed acceleration engine further builds on the strengths of its predecessors while expanding its versatility. It extends the application range to accommodate imaging in challenging situations related to motion, implants and low SNR in diffusion. On top of that, further speed improvements are realized by incorporating deep learning in the Philips SmartSpeed framework.

Adaptive-CS-Net deep learning technology applied at the beginning of the recon chain Philips SmartSpeed AI is completely integrated in the acquisition and reconstruction acceleration engine and the Adaptive-CS-Net is trained to cover all anatomical domains and image contrasts over a wide range of acceleration factors and resolutions. This makes Philips SmartSpeed AI as versatile as Compressed SENSE which is unparalleled in the application range. It can be applied in any anatomical area for all contrasts for 2D and 3D sequences including complex image output. The latter has the benefit that any image processing steps can be applied. Therefore, Philips SmartSpeed AI is for instance compatible with mDixon, SWIp and PCA. Image fidelity is maintained by the inherent data consistency of the Adaptive-CS-Net roll-out.

Philips SmartSpeed AI brings faster imaging, reduced motion sensitivity and higher resolution by sampling across the full k-space to capture the high frequency information. The support for multiple contrasts of 2D and 3D scans as well as derived information like fat-free imaging with mDixon ensures that shorter scan times are not realized only for single scans, but that the whole examination time is reduced. This is obviously beneficial for patient comfort and compliance. Through the novel design of the Adaptive-CS-Net, Philips SmartSpeed AI is up to three times faster¹ than conventional parallel imaging and can increase resolution up to 65%¹ to deliver outstanding image quality for diagnostic confidence. The variable density non-uniform sampling scheme allows scans to be accelerated with k-space coverage to the full extent such that higher frequencies (and hence, anatomical details) are captured. This results in truly high-resolution images in which fine structures can be discriminated against.