Comparison of Image Quality Generated by Contrast Specific Echocardiogram and Left Ventricular Opacification (LVO) Imaging Settings in Patients Enrolled in Luminity 422 Study
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- To determine whether the technique left ventricular opacification (LVO) imaging provide better quality images than current best practice "contrast specific imaging setting," in patients routinely referred for a transthoracic echocardiogram.
研究概览
简要总结
This study compares "contrast specific imaging setting" images with "left ventricular opacification (LVO)" images taken on the same group of patients at different points in time, to see if one is more effective at assessing the function of the heart.
详细描述
Ultrasound testing of the heart using a "dye" or contrast is often used to get clear pictures of the heart in many heart conditions. When this test is done when the heart is working hard, such as when exercising, this is called contrast stress echocardiography.
Current guidelines recommend the method called "contrast specific imaging setting," as the best way of looking at the main pumping part of the heart. However, it is not known if it provides better pictures when compared to a different method called "left ventricular opacification (LVO)."
This study will compare pictures in patients who have had tests done using both ways of looking at the heart and will compare; LVO; enhanced and unenhanced LVEBD; LVO imaging with contrast specific imaging Wall Motion Classification and LVO to contrast specific imaging Left Ventricular Ejection Fraction (LVEF). The comparison will be done by a group of experts in cardiac ultrasound.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Participants enrolled in the Luminity 422 study that also have complete data with contrast specific imaging obtained within a 60 day window.
- •Participants who are able to give voluntary, written informed consent to participate in this clinical investigation and from whom consent has been obtained.
排除标准
- •Unwilling / unable to give informed consent
结局指标
主要结局
To determine whether the technique left ventricular opacification (LVO) imaging provide better quality images than current best practice "contrast specific imaging setting," in patients routinely referred for a transthoracic echocardiogram.
时间窗: 8 months
次要结局
- To determine whether the technique LVO imaging provide better quality images than the current best practice for comparison of wall motion classification between images obtained by LVO imaging (intermediate MI) and contrast specific imaging (low MI).(8 months)
- To determine whether the technique LVO imaging provide better quality images than the current best practice for comparison of LVEF assessment between images obtained by LVO imaging (intermediate MI) and contrast specific imaging (low MI).(8 months)
- To determine whether the technique LVO imaging provide better quality images than the current best practice for comparison of segmental LVEBD between images obtained by LVO imaging (intermediate MI) and contrast specific imaging (low MI).(8 months)