Volume 54, Issue 4 pp. 1268-1279
Original Research

Diagnostic Accuracy of Spiral Whole-Heart Quantitative Adenosine Stress Cardiovascular Magnetic Resonance With Motion Compensated L1-SPIRIT

Jonathan A. Pan MD

Jonathan A. Pan MD

Cardiovascular Division, Department of Medicine, University of Virginia Health System, Charlottesville, Virginia, USA

Co-first authors.

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Austin A. Robinson MD

Austin A. Robinson MD

Division of Cardiovascular Diseases, Division of Radiology, Scripps Clinic, La Jolla, California, USA

Co-first authors.

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Yang Yang PhD

Yang Yang PhD

Cardiovascular Division, Department of Medicine, University of Virginia Health System, Charlottesville, Virginia, USA

Biomedical Engineering and Imaging Institute and Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA

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Patricia Rodriguez Lozano MD

Patricia Rodriguez Lozano MD

Cardiovascular Division, Department of Medicine, University of Virginia Health System, Charlottesville, Virginia, USA

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Stephen McHugh MD

Stephen McHugh MD

Department of Internal Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA

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Eric M. Holland MD

Eric M. Holland MD

Division of Cardiology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA

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Craig H. Meyer PhD

Craig H. Meyer PhD

Department of Radiology and Medical Imaging, University of Virginia Health System, Charlottesville, Virginia, USA

Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA

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Angela M. Taylor MD

Angela M. Taylor MD

Cardiovascular Division, Department of Medicine, University of Virginia Health System, Charlottesville, Virginia, USA

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Christopher M. Kramer MD

Christopher M. Kramer MD

Cardiovascular Division, Department of Medicine, University of Virginia Health System, Charlottesville, Virginia, USA

Department of Radiology and Medical Imaging, University of Virginia Health System, Charlottesville, Virginia, USA

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Michael Salerno MD, PhD

Corresponding Author

Michael Salerno MD, PhD

Cardiovascular Division, Department of Medicine, University of Virginia Health System, Charlottesville, Virginia, USA

Department of Radiology and Medical Imaging, University of Virginia Health System, Charlottesville, Virginia, USA

Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA

Address reprint requests to: M.S., 1215 Lee Street, Box 800158 Charlottesville, Virginia 22908, USA. E-mail: [email protected]

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First published: 06 April 2021
Citations: 2

Abstract

Background

Variable density spiral (VDS) pulse sequences with motion compensated compressed sensing (MCCS) reconstruction allow for whole-heart quantitative assessment of myocardial perfusion but are not clinically validated.

Purpose

Assess performance of whole-heart VDS quantitative stress perfusion with MCCS to detect obstructive coronary artery disease (CAD).

Study Type

Prospective cross sectional.

Population

Twenty-five patients with chest pain and known or suspected CAD and nine normal subjects.

Field strength/Sequence

Segmented steady-state free precession (SSFP) sequence, segmented phase sensitive inversion recovery sequence for late gadolinium enhancement (LGE) imaging and VDS sequence at 1.5 T for rest and stress quantitative perfusion at eight short-axis locations.

Assessment

Stenosis was defined as ≥50% by quantitative coronary angiography (QCA). Visual and quantitative analysis of MRI data was compared to QCA. Quantitative analysis assessed average myocardial perfusion reserve (MPR), average stress myocardial blood flow (MBF), and lowest stress MBF of two contiguous myocardial segments. Ischemic burden was measured visually and quantitatively.

Statistical Tests

Student's t-test, McNemar's test, chi-square statistic, linear mixed-effects model, and area under receiver-operating characteristic curve (ROC).

Results

Per-patient visual analysis demonstrated a sensitivity of 84% (95% confidence interval [CI], 60%–97%) and specificity of 83% [95% CI, 36%–100%]. There was no significant difference between per-vessel visual and quantitative analysis for sensitivity (69% [95% CI, 51%–84%] vs. 77% [95% CI, 60%–90%], P = 0.39) and specificity (88% [95% CI, 73%–96%] vs. 80% [95% CI, 64%–91%], P = 0.75). Per-vessel quantitative analysis ROC showed no significant difference (P = 0.06) between average MPR (0.68 [95% CI, 0.56–0.81]), average stress MBF (0.74 [95% CI, 0.63–0.86]), and lowest stress MBF (0.79 [95% CI, 0.69–0.90]). Visual and quantitative ischemic burden measurements were comparable (P = 0.85).

Data Conclusion

Whole-heart VDS stress perfusion demonstrated good diagnostic accuracy and ischemic burden evaluation. No significant difference was seen between visual and quantitative diagnostic performance and ischemic burden measurements.

Evidence Level

2

Technical Efficacy

Stage 2

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