Cardiac imaging is an integral part of the evaluation of patients with all forms of heart disease. Unfortunately, each imaging modality, including nuclear cardiology, echocardiography, cardiovascular magnetic resonance imaging, cardiac computed tomography, coronary angiography, and cardiac positron emission tomography, has adopted its own separate and sometimes markedly differing nomenclature, as well as methods of orientation and segmentation of the heart. The lack of common nomenclature and views has resulted in difficulties in optimal patient management, communication between modalities, interpretation of results, and combined research. Attempts by several subspecialty organizations in the past have improved but not resolved these terminology issues. To ultimately resolve these differences, a remarkable committee was convened: The American Heart Association Writing Group on Myocardial Segmentation and Registration for Cardiac Imaging. This writing group was composed of members from the following organizations: the
The Society of Cardiovascular Angiography and Interventions present a practical approach to assist cardiac catheterization laboratories in establishing a radiation safety program. The importance of this program is emphasized by the appropriate concerns for the increasing use of ionizing radiation in medical imaging, and its potential adverse effects. An overview of the assessment of radiation dose is provided with a review of basic terminology for dose management. The components of a radiation safety program include essential personnel, radiation monitoring, protective shielding, imaging equipment, and training/education. A procedure based review of radiation dose management is described including pre-procedure, procedure and post-procedure best practice recommendations. Specific radiation safety considerations are discussed including women and fluoroscopic procedures as well as patients with congenital and structural heart disease.
Use of a number of ML algorithms did not improve prediction of 30-day heart failure readmissions compared with more traditional prediction models. Although there will likely be further applications of ML approaches in prognostic modeling, our study fits within the literature of limited predictive ability for heart failure readmissions.
Background-With the reduction in restenosis rates by drug-eluting stents, there is new controversy concerning the optimal management of incidental, nontarget lesions identified during percutaneous coronary intervention (PCI). Such lesions have been treated conservatively because of risk of restenosis but now are being considered for PCI to prevent plaque instability. However, the impact of incidental stenoses on future cardiac events remains unknown. Methods and Results-We performed a retrospective cohort study to determine the rate and features of clinical plaque progression using the National Heart, Lung,
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