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Tissue Doppler (Tissue Velocity Imaging)

…Velocity Imaging) Previous chapters on Doppler imaging have all focused on measurements of blood flow. However, the Doppler effect can also be used to study…

Principles and Preparations for Echocardiographic Examinations

…2D) imaging. Some measurements are still done using M mode echocardiography. A formal consensus regarding the components of the standard study has not been established…

Vulnerable Plaque and Mechanisms of Acute Coronary Occlusion

…follow up in a prospective study of patients with acute coronary syndrome. Thus, an individual plaque’s morphology does not reliably establish that it will…

Spontaneous Coronary Artery Dissection

…disease Type 3 Focal or tubular stenosis resembling atherosclerosis Often requires intravascular imaging to demonstrate an intramural haematoma or double lumen Type 1 is reported…

Strain, strain rate and speckle tracking: Myocardial deformation

…which during systole travels towards the apex, and then recoils to its starting position. Mitral annulus velocity is used to study longitudinal contraction; during systole…

A Novel Familial Cardiac Arrhythmia Syndrome Identified Using ECG

…autosomal dominant syndrome (4). Figure 1 . 12 lead ECG (presented according to Cabrera), recorded at 63 years of age, demonstrates concave upward ST segment depression…

Indications and contraindications for myocardial perfusion imaging

…SPECT imaging is recommended as the initial study in patients with low to moderate risk of CAD. In patients with a high to very high…

Intravascular Imaging: IVUS and OCT for PCI Optimisation

…intravascular imaging provides cross sectional and longitudinal information about the artery. The clinical value of these techniques rests on their ability to characterize the anatomy…

Myocardial Perfusion Imaging With SPECT and PET

…Imaging is generally performed at rest and during exercise or pharmacological stress, allowing comparison between myocardial blood flow states. MPI is used principally to: Diagnose…

Artifacts in ultrasound imaging

…Ultrasound artifacts The following artifacts are common in ultrasound imaging: The ultrasound image displays non existing structures. The ultrasound image does not display existing structures…

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