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Native T1 and T2 mapping cardiovascular magnetic resonance for detection of cardiac allograft vasculopathy after heart transplantation

Yurie Shirai¹, Michinobu Nagao¹, Noriko Kikuchi¹, Atsushi Yamamoto¹, Yuka Matsuo¹, Risako Nakao¹, Kiyoe Ando¹, Eri Watanabe¹, Shinichi Nunoda¹, Masami Yoneyama², and Syuji Sakai¹
¹Tokyo Women’s Medical University, Tokyo, Japan, ²Philips Japan, Tokyo, Japan

Native T1 mapping can be minimally invasive and have high diagnostic accuracy for CAV after heart transplantation, with no contrast and radiation exposure required.

A man in his 60s man who underwent heart transplantation 16 years ago due to dilated cardiomyopathy. NH3-PET can quantify the absolute MBF and MFR by coronary territory (upper row). MRI T1 and T2 values in four territories were measured using the short-axis of mid left ventricular T1 and T2 mappings (lower row).

Comparison of T1 (left) and T2 (right) between territories with MFR >2.0 and <2.0.