Abstract #1628

Compressed SENSE Accelerated CE-MRA: Comparison of Image Quality and Vessel Detectability with standard SENSE imaging.

Maarten J. Versluis¹, Yi Wang², Karthik Gopalakrishnan³, Burkhard Maedler⁴, Charles Truwit⁵, Velmurugan Gnanaprakasam¹, Johan van den Brink¹, and Liesbeth Geerts¹

¹BIU MR, Philips Healthcare, Best, Netherlands, ²Clinical Science, Philips Healthcare, Seattle, WA, United States, ³BIU MR, Philips Healthcare, Bangalore, India, ⁴Clinical Science, Philips Healthcare, Hamburg, Germany, ⁵Diagnostic Imaging, Philips Healthcare, Cambridge, MA, United States

In this study we compared the image quality of CE-MRA scans using Compressed SENSE and SENSE reconstruction in three subjects. A visual comparison between the number of intracranial vessels showed no differences for both reconstruction techniques. Structural Similarity Index (SSIM) and Mean squared error (MSE) metrics were used to compare retrospectively undersampled CS-SENSE and SENSE acquisitions at a number of reduction factors with the fully sampled dataset. It was found that CS-SENSE reconstructed scans show a higher similarity to the fully sampled acquisitions than using conventional SENSE parallel imaging allowing a 50% increase in acceleration compared to SENSE.

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