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Black-blood steady-state free precession (SSFP) coronary wall MRI for cardiac allografts: A feasibility study

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机构: [1]Northwestern Univ, Dept Radiol, Chicago, IL 60611 USA; [2]Siemens Healthcare, Cardiovasc MR R&D, Chicago, IL USA; [3]Capital Med Univ, Beijing Anzhen Hosp, Dept Radiol, Beijing, Peoples R China; [4]Northwestern Univ, Dept Radiol, 737 N Michigan Ave,Suite 1600, Chicago, IL 60611 USA
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关键词: coronary wall MRI steady state free precession heart transplantation

摘要:
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.

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出版当年[2011]版:
大类 | 3 区 医学
小类 | 3 区 核医学
最新[2025]版:
大类 | 2 区 医学
小类 | 3 区 核医学
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出版当年[2010]版:
Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
最新[2023]版:
Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

影响因子: 最新[2023版] 最新五年平均 出版当年[2010版] 出版当年五年平均 出版前一年[2009版] 出版后一年[2011版]

第一作者:
第一作者机构: [1]Northwestern Univ, Dept Radiol, Chicago, IL 60611 USA;
通讯作者:
通讯机构: [1]Northwestern Univ, Dept Radiol, Chicago, IL 60611 USA; [4]Northwestern Univ, Dept Radiol, 737 N Michigan Ave,Suite 1600, Chicago, IL 60611 USA
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