Respiratory motion of the heart from free breathing coronary angiograms

被引：122

作者：

Shechter, G ^{[1
]}

Ozturk, C

Resar, JR

McVeigh, ER

机构：

[1] NHLBI, Cardiac Energet Lab, NIH, DHHS, Bethesda, MD 20892 USA

[2] Johns Hopkins Univ, Dept Biomed Engn, Sch Med, Baltimore, MD 21205 USA

[3] NHLBI, Vasc Biol Branch, NIH, DHHS, Bethesda, MD 20892 USA

来源：

IEEE TRANSACTIONS ON MEDICAL IMAGING | 2004年 / 23卷 / 08期

关键词：

chest imaging; magnetic resonance imaging; modeling; motion analysis; motion compensation; X-ray angiography;

D O I：

10.1109/TMI.2004.828676

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Respiratory motion compensation for cardiac imaging requires knowledge of the heart's motion and deformation during breathing. This paper presents a method for measuring the natural tidal respiratory motion of the heart from free breathing coronary angiograms. A three-dimensional (3-D) deformation field describing the cardiac and respiratory motion of the coronary arteries is recovered from a biplane acquisition. A cardiac respiratory parametric model is formulated and used to decompose the deformation field into cardiac and respiratory components. Angiograms from ten patients were analyzed. A 3-D translation motion model was sufficient for describing the motion of the heart in only two patients. For all patients, the heart translated caudally (mean, 4.9 +/- 1.9 mm; range, 2.4 to 8.0 mm) and underwent a cranio-dorsal rotation (mean, 1.5degrees +/- 0.9degrees; range, 0.2degrees to 3.5degrees) during inspiration. In eight patients, the heart also translated anteriorly (mean, 1.3 +/- 1.8 mm; range, -0.4 to 5.1 mm) and rotated in a caudo-dextral direction (mean, 1.2degrees +/- 1.3degrees; range, -1.9degrees to 3.2degrees).

引用

页码：1046 / 1056

页数：11

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