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1. コントラスト心エコー検査：造影剤、安全性、およびイメージング技術contrast echocardiography contrast agents safety and imaging technique [show details]
… frequency of the echo system to a harmonic of the emitted frequency, the system "filters" out all returning fundamental frequencies from the myocardium and enhances the microbubble signal. The contrast intensity …
2. コントラスト心エコー検査：臨床応用contrast echocardiography clinical applications [show details]
… microbubbles for echocardiographic contrast and the optimization of the echocardiographic settings for visualizing contrast are discussed separately. The first clinical use of contrast echocardiography was for …
3. 心房細動における心エコー検査の役割role of echocardiography in atrial fibrillation [show details]
…increased by fourfold by complex aortic plaque. Spontaneous echo contrast (SEC or "smoke") refers to the presence of dynamic, smoke-like echoes seen during TEE in the left atrium or atrial appendage ( and …
4. 核磁気共鳴画像法の原理principles of magnetic resonance imaging [show details]
…perform collection of the echo data, and transform the raw data into images Unlike computed tomography (CT), where tissue contrast depends almost entirely upon electron density, contrast in MRI is a complex …
5. 心臓内および大動脈内の全身性塞栓源の検出における心エコーechocardiography in detection of cardiac and aortic sources of systemic embolism [show details]
…of the LAA . Spontaneous echo contrast seen during echocardiography is believed to represent erythrocyte aggregation in low shear rate conditions . Spontaneous echo contrast is most commonly seen in the …