PURPOSE: To assess the hypothesis that steady-state free procession (SSFP) allows for imaging of the coronary wall under the conditions of fast heart rate in heart transplantation (HTx) patients. MATERIALS AND METHODS: With the approval of our Institutional Review Board, 28 HTx patients were scanned with a 1.5T scanner. Cross-sectional black-blood images of the proximal portions of the left main artery, left anterior descending artery, and right coronary artery were acquired with both a 2D, double inversion recovery (DIR) prepared turbo (fast) spin echo (TSE) sequence and a 2D DIR SSFP sequence. Image quality (scored 0-3), vessel wall area, thickness, signal-to-noise ratio (SNR, vessel wall), and contrast-to-noise ratio (CNR, wall-lumen) were compared between TSE and SSFP. RESULTS: The overall image quality of SSFP was higher than TSE (1.23 ± 0.95 vs. 0.88 ± 0.69, P < 0.001). SSFP had a higher coronary wall SNR (20.1 ± 8.5 vs. 14.9 ± 4.8, P < 0.001) and wall-lumen CNR (8.2 ± 4.6 vs. 6.8 ± 3.7, P = 0.005) than TSE. CONCLUSION: Black-blood SSFP coronary wall MRI provides higher image quality, SNR, and CNR than traditional TSE does in HTx recipients. It has the potential to become an alternative means to noninvasive imaging of cardiac allografts.
PURPOSE: To assess the hypothesis that steady-state free procession (SSFP) allows for imaging of the coronary wall under the conditions of fast heart rate in heart transplantation (HTx) patients. MATERIALS AND METHODS: With the approval of our Institutional Review Board, 28 HTxpatients were scanned with a 1.5T scanner. Cross-sectional black-blood images of the proximal portions of the left main artery, left anterior descending artery, and right coronary artery were acquired with both a 2D, double inversion recovery (DIR) prepared turbo (fast) spin echo (TSE) sequence and a 2D DIR SSFP sequence. Image quality (scored 0-3), vessel wall area, thickness, signal-to-noise ratio (SNR, vessel wall), and contrast-to-noise ratio (CNR, wall-lumen) were compared between TSE and SSFP. RESULTS: The overall image quality of SSFP was higher than TSE (1.23 ± 0.95 vs. 0.88 ± 0.69, P < 0.001). SSFP had a higher coronary wall SNR (20.1 ± 8.5 vs. 14.9 ± 4.8, P < 0.001) and wall-lumen CNR (8.2 ± 4.6 vs. 6.8 ± 3.7, P = 0.005) than TSE. CONCLUSION: Black-blood SSFP coronary wall MRI provides higher image quality, SNR, and CNR than traditional TSE does in HTx recipients. It has the potential to become an alternative means to noninvasive imaging of cardiac allografts.
Authors: Z A Fayad; V Fuster; J T Fallon; T Jayasundera; S G Worthley; G Helft; J G Aguinaldo; J J Badimon; S K Sharma Journal: Circulation Date: 2000-08-01 Impact factor: 29.690
Authors: Kai Lin; Xiaoming Bi; Kirsi Taimen; Sven Zuehlsdorff; Biao Lu; James Carr; Debiao Li Journal: Int J Cardiovasc Imaging Date: 2011-04-02 Impact factor: 2.357
Authors: Matthias Stuber; René M Botnar; Stefan E Fischer; Rolf Lamerichs; Jouke Smink; Paul Harvey; Warren J Manning Journal: Magn Reson Med Date: 2002-09 Impact factor: 4.668
Authors: Kai Lin; Donald M Lloyd-Jones; Ying Liu; Biao Lu; Huadan Xue; Yining Wang; Debiao Li; James C Carr Journal: Int J Cardiovasc Imaging Date: 2013-10-30 Impact factor: 2.357
Authors: Kai Lin; Donald M Lloyd-Jones; Ying Liu; Xiaoming Bi; Biao Lu; Debiao Li; James C Carr Journal: Int J Cardiovasc Imaging Date: 2015-01-09 Impact factor: 2.357