Proximity of Pacemaker and Implantable Cardioverter-Defibrillator Leads to Coronary Arteries as Assessed by Cardiac Computed Tomography

2013 ◽  
Vol 37 (6) ◽  
pp. 717-723 ◽  
Author(s):  
BENJAMIN J. PANG ◽  
SUBODH B. JOSHI ◽  
ELAINE H. LUI ◽  
MARK A. TACEY ◽  
JEFF ALISON ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Implantable Cardioverter Defibrillator ◽  
Coronary Arteries ◽  
Cardiac Computed Tomography ◽  
Cardioverter Defibrillator

Technology of cardiac computed tomography

ESC CardioMed ◽  
2018 ◽  
pp. 537-541
Author(s):  
Stephan Achenbach
Keyword(s):  
Computed Tomography ◽  
Heart Rate ◽  
Coronary Arteries ◽  
Cardiac Computed Tomography ◽  
Ct Imaging ◽  
Breath Hold ◽  
Coronary Angiogram ◽  
Data Set ◽  
Careful Patient ◽  
Patient Preparation

Cardiac imaging by computed tomography (CT) has the unique advantage of providing a fully isotropic data set with high spatial resolution. However, the rapid motion of the heart poses substantial challenges to CT imaging. For this reason, specific techniques have been developed to increase the temporal resolution of CT imaging and to permit either image acquisition or data reconstruction in synchronization with the patient’s electrocardiogram. Next to the use of advanced scanner technology, careful patient preparation is important to avoid artefacts. This includes careful coaching and practising of the breath-hold sequence to lower the heart rate, especially when CT is used to visualize the coronary arteries. With modern scanners, radiation exposure is reasonably low and falls approximately in the range of an invasive coronary angiogram.

Functional anatomy of myocardial perfusion

ESC CardioMed ◽  
2018 ◽  
pp. 106-110
Author(s):  
Robert Manka ◽  
Sabrina Oebel
Keyword(s):  
Computed Tomography ◽  
Myocardial Perfusion ◽  
Coronary Arteries ◽  
Single Photon ◽  
Cardiac Computed Tomography ◽  
Photon Emission ◽  
Functional Anatomy ◽  
Imaging Modalities ◽  
Perfusion Studies ◽  
Artery Disease

The continuous development of cardiac imaging modalities in recent years has led to a better understanding of myocardial perfusion on a structural level by allowing detection of myocardial blood flow alterations caused by obstructed coronary arteries or different cardiac pathologies. Apart from direct visualization of the epicardial coronary arteries by coronary angiography or cardiac computed tomography, the diagnosis of functionally relevant stenosis often requires additional techniques such as invasive fractional flow reserve measurements. The possibility of a non-invasive assessment of coronary perfusion status including pathologies which may otherwise evade detection by standard angiography, such as microvascular disease, by imaging modalities such as single-photon emission computed tomography and cardiovascular magnetic resonance imaging has significantly changed clinical management of patients with suspected or known coronary artery disease. Using an integrated diagnostic approach combining functional information gained by perfusion studies and structural data covering coronary anatomy, the planning of interventional procedures and further risk stratification may be significantly improved.

scholarly journals Two-Point Left Ventricle Pacing and Cardiac Computed Tomography

2012 ◽  
Vol 2012 ◽  
pp. 1-2
Author(s):  
Rafal Mlynarski ◽  
Agnieszka Mlynarska ◽  
Eugeniusz Pilat ◽  
Rafal Gardas ◽  
Jacek Wilczek ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Left Ventricle ◽  
Coronary Arteries ◽  
Multislice Computed Tomography ◽  
Cardiac Computed Tomography ◽  
Coronary Vessels

Endocardial leads can potentially cause problems during coronary vessels visualization in multislice computed tomography (MSCT) due to a large number of artifacts. Based on presented case, we conclude that it is possible to perform MSCT of coronary arteries and leads visualization despite coexistence of four endocardial leads.

Sign in / Sign up

Export Citation Format

Share Document