Isolated Subvalvular Pulmonary Stenosis: Depiction at Whole Heart Magnetic Resonance Imaging

Sato, Yuichi; Komatsu, Sei; Matsuo, Shinro; Matsumoto, Naoya; Yoda, Shunichi; Tani, Shigemasa; Kunimoto, Satoshi; Takayama, Tadateru; Kasamaki, Yuji; Saito, Satoshi

doi:10.1007/s10554-006-9124-5

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…The resulting geometric deviations allow a good qualitative and quantitative representation of WSS and WSSG s patterns for both techniques. Both techniques are used now in the clinical practice for diagnosis of different cardiac diseases [38][39][40]. These diagnosed changes in the geometry of cardiac vessels cause alterations in the WSS distributions.…”

Section: Resultsmentioning

confidence: 99%

CFD analysis in an anatomically realistic coronary artery model based on non-invasive 3D imaging: comparison of magnetic resonance imaging with computed tomography

Goubergrits

Kertzscher

Schöneberg

et al. 2007

Int J Cardiovasc Imaging

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Computational fluid dynamics (CFD) methods based on in vivo three-dimensional vessel reconstructions have recently been shown to provide prognostically relevant hemodynamic data. However, the geometry reconstruction and the assessment of clinically relevant hemodynamic parameters may depend on the used imaging modality. This study compares geometric reconstruction and calculated wall shear stress (WSS) values based on magnetic resonance imaging (MRI) and computed tomography (CT). Both imaging methods were applied to a same 2.5-fold upscale silicon model of the left coronary artery (LCA) main bifurcation. The original model is an optically digitized post mortem vessel cast. This digitized geometry is considered as a "gold standard" or original geometry for the MRI versus CT comparative study. The use of the upscale model allowed generating a high resolution CT raw data set with voxel size of 0.156 x 0.156 x 0.36 mm(3) and a high resolution MRI data set with an equivalent voxel size of 0.196 x 0.196 x 0.196 mm(3) for corresponding in vivo conditions. MRI based reconstruction achieved a mean Hausdorff surface distance of 0.1 mm to the original geometry. This is 2.5 times better than CT based reconstruction with mean Hausdorff surface distance of 0.252 mm. A comparison of the calculated mean WSS shows good correlation (r = 0.97) and good agreement among the three modalities with a WSS of 0.65 Pa in the original model, of 0.68 Pa in the CT based model and of 0.67 Pa in the MRI based model.

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Section: Resultsmentioning

confidence: 99%

CFD analysis in an anatomically realistic coronary artery model based on non-invasive 3D imaging: comparison of magnetic resonance imaging with computed tomography

Goubergrits

Kertzscher

Schöneberg

et al. 2007

Int J Cardiovasc Imaging

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show abstract

“…On provisional diagnosis of DCRV, whole heart MRI was performed. Whole heart MRI was performed by an Intera Achieva (1.5 T, Philips Medical Systems, Netherlands) using a free-breathing, three-dimensional navigator technique [3]. After the completion of data acquisition for whole heart MRI, breath-hold cine MRI was performed.…”

mentioning

confidence: 99%

Double chambered right ventricle: Depiction at three-dimensional whole heart magnetic resonance imaging

Sato

Matsumoto

Matsuo

et al. 2007

International Journal of Cardiology

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Isolated Subvalvular Pulmonary Stenosis: Depiction at Whole Heart Magnetic Resonance Imaging

Cited by 2 publications

References 13 publications

CFD analysis in an anatomically realistic coronary artery model based on non-invasive 3D imaging: comparison of magnetic resonance imaging with computed tomography

CFD analysis in an anatomically realistic coronary artery model based on non-invasive 3D imaging: comparison of magnetic resonance imaging with computed tomography

Double chambered right ventricle: Depiction at three-dimensional whole heart magnetic resonance imaging

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