Abstract #1638

MRA based on pointwise encoding time reduction with radial acquisition improves uniformity of cavernous segment of internal carotid artery

Tongtong Sun¹, Yu Zhang¹, Tongtong Li¹, Yuan Luo², Jinxia Zhu³, Cheng Cheng⁴, and Hongyan Ni⁵

¹Radiology, First Central Clinical College, Tianjin Medical University, Tianjin, China, ²Radiology, China-Japan Friendship Hospital, Beijing, China, ³MR Collaboration, Siemens Healthcare, Beijing, China, ⁴MR Application, Siemens Healthcare, Beijing, China, ⁵Radiology, Tianjin First Central Hospital, Tianjin, China

This study compared the differences between PETRA-MRA and TOF-MRA on the imaging of the cavernous segment of the ICA with qualitative analysis (image quality) and quantitative analysis (SNR, CNR, CR, and uniformity). The results showed that PETRA-MRA significantly improved the uniformity and CR of the cavernous segment of ICA, although it is inferior in both SNR and CNR. This suggests that PETRA-MRA could provide a reasonable alternative to reduce the loss of signal from curved vessels.

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