Free-breathing 3D Steady-State Free Precession Coronary MR Angiography with Radial k-Space Sampling: Comparison with Cartesian k-Space Sampling and Cartesian Gradient-Echo Coronary MR Angiography—Pilot Study

Spuentrup, Elmar; Katoh, Marcus; Buecker, Arno; Manning, Warren J.; Schaeffter, Tobias; Nguyen, Trung Hieu; Kühl, Harald P.; Stuber, Matthias; Botnar, René M.; Günther, Rolf W.

doi:10.1148/radiol.2312030451

Cited by 76 publications

(49 citation statements)

References 22 publications

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“…With developments and refinements of respiratory gating with navigator echoes, SSFP sequence, 79 parallel imaging technique with multi-coils, and improved strategies for k-space sampling, such as radial k-space sampling, 80 the image quality and acquisition speed of coronary MRA have improved. It is now feasible to use free-breathing coronary MRA for screening luminal narrowing of the coronary arteries in patients with suspected CAD.…”

Section: Mra Of Coronary Arteriesmentioning

confidence: 99%

Cardiac MRI in Ischemic Heart Disease

Ishida

Kato

Sakuma

2009

Circ J

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he first ECG-gated magnetic resonance (MR) images of the heart were acquired more than 25 years ago, and MR imaging (MRI) was initially used to evaluate the morphology and motion of the heart. With developments of late gadolinium-enhanced (LGE) MRI and myocardial perfusion MRI, the application of MRI in ischemic heart disease (IHD) has been considerably expanded in the past 10 years. Because MRI has high spatial resolution and excellent image contrast, subendocardial infarction and myocardial ischemia can be clearly visualized. In addition, MRI does not expose the patient to ionizing radiation nor require the administration of iodinated contrast medium, which is potentially nephrotoxic. Coronary MR angiography (MRA) is rapidly evolving and has emerged as a possible alternative to multidetector-row computed tomography (MDCT) for noninvasive visualization of coronary artery disease (CAD). In this review, we describe recent advances of cardiac MRI and coronary MRA, and demonstrate the usefulness of MRI for the diagnosis and risk stratification in patients with IHD. Assessment of Cardiac FunctionBreath-hold cine MRI with steady-state free precession (SSFP) sequence and segmented k-space acquisition has become the standard method of evaluating the morphology and function of the heart. Right ventricular (RV) function, as well as left ventricular (LV) function and mass, can be accurately determined with cine MRI. 1,2 Compared with cardiac MDCT, excellent delineation of blood and myocardium can be obtained on SSFP cine MRI without contrast administration. 3,4 With the use of cardiac multichannel receiver coils and parallel imaging techniques, such as sensitivity encoding (SENSE), the imaging time of SSFP cine MRI has been considerably shortened. Compared with echocardiography, MRI is not influenced by lung air, allowing the acquisition of high-quality cine MRI of the entire heart in any desired double oblique imaging planes, even in patients with pulmonary emphysema. Cine MRI is less operator-dependent and shows high inter-study reproducibility in the assessment of ventricular volumes and mass. This allows a considerable reduction in the patient numbers required to prove a hypothesis in research studies, offering a potential saving in costs. 5 High-dose dobutamine stress echo (≈40 μg · kg -1 · min -1 ) has become a well-established method for the diagnosis of myocardial ischemia. However, dobutamine stress echo has several disadvantages, including operator dependency and poor endocardial delineation in the basal lateral and inferior segments in a certain percentage of patients. Cine MRI allows noninvasive assessment of altered regional wall motion during dobutamine stress in all segments of the LV, with high spatial and temporal resolution. The respective sensitivity and specificity of high-dose dobutamine stress cine MRI were 83% and 83% by Hundley et al, 6 86% and 86% by Nagel et al, 7 89% and 75% by Jahnke et al, 8 and 78% and 88% by Paetsch et al 9 for the detection of significant CAD. A recent meta-analysis of dobu...

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Section: Mra Of Coronary Arteriesmentioning

confidence: 99%

Cardiac MRI in Ischemic Heart Disease

Ishida

Kato

Sakuma

2009

Circ J

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“…All coronary CMRI angiograms were acquired according to a previously validated protocol. 5,17,18 Right coronary artery (RCA) vessel wall scanning was done in a subset of subjects when total scan time did not exceed 1.5 hours (24 with nephropathy, 37 patients without nephropathy) with 3-dimensional black-blood imaging according to a previously validated protocol. 11,19 To evaluate aortic atherosclerosis, subjects underwent thoracoabdominal aortic CMRI with acquisition of 24 transverse slices spanning the aortic arch to the aortoiliac bifurcation using a ECG-gated, T2-weighted, and fat-suppressed black-blood turbo spin-echo sequence.…”

Section: Cmri Studiesmentioning

confidence: 99%

Subclinical Coronary and Aortic Atherosclerosis Detected by Magnetic Resonance Imaging in Type 1 Diabetes With and Without Diabetic Nephropathy

et al. 2007

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“…ECG-triggered cine-MRI sequences were first acquired in multiple orientations. Mid-diastolic and end-systolic coronary MR angiograms were then consecutively acquired during free breathing, using a navigator-echo, ECG-gated, radial, three-dimensional, balanced turbo field echo sequence [1]. First-pass MR perfusion imaging was also performed at three short-axis, basal, mid-ventricular, and apical left ventricular (LV) levels.…”

Section: Case Reportmentioning

confidence: 99%

Usefulness of MRI to Demonstrate the Mechanisms of Myocardial Ischemia in Hypertrophic Cardiomyopathy with Myocardial Bridge

2006

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We present a case of symptomatic primary hypertrophic cardiomyopathy (HCM) associated with myocardial bridging of the left anterior descending (LAD) artery and suspected ischemia that could be related either to LAD artery compression or to microvascular perfusion abnormalities. MRI demonstrated the morphological appearance of myocardial hypertrophy, and coronary MR angiography evidenced the myocardial bridge and its functional consequences with stress MR perfusion. In conclusion, as a non-invasive comprehensive imaging technique, MRI should be considered in identifying the mechanisms of myocardial ischemia in HCM with myocardial bridge.

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Free-breathing 3D Steady-State Free Precession Coronary MR Angiography with Radial k-Space Sampling: Comparison with Cartesian k-Space Sampling and Cartesian Gradient-Echo Coronary MR Angiography—Pilot Study

Cited by 76 publications

References 22 publications

Cardiac MRI in Ischemic Heart Disease

Cardiac MRI in Ischemic Heart Disease

Subclinical Coronary and Aortic Atherosclerosis Detected by Magnetic Resonance Imaging in Type 1 Diabetes With and Without Diabetic Nephropathy

Usefulness of MRI to Demonstrate the Mechanisms of Myocardial Ischemia in Hypertrophic Cardiomyopathy with Myocardial Bridge

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