Cardiac Disease
Conditions
Brief summary
This is a single-group, observational study which will involve obtaining two echo scans of recruited patients. All recruited patients will undergo echo scans by both novice users (nurses) and experts (echo sonographers). Image quality between novices and experts as well as the ability to calculate LVEF from novice and expert scans and the quality of the LVEF calculated via KOSMOS-EF compared to LVEF calculations by expert cardiologists will occur in post-hoc Echo image analysis
Interventions
DEVICEPortable Ultrasound System
EchoNous KOSMOS
Sponsors
University of California, San Francisco
Revival Research Institute LLC
Centaur Labs
EchoNous Inc.
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 89 Years
Healthy volunteers
Yes
Inclusion criteria
* Aged 18-89 years of age * Have capacity to provide written consent either themselves or via healthcare proxy as determined by subjects' clinical care teams * Have an anticipated timeline in the EDOU long enough to allow for completion of study procedures without causing delay to subjects' usual clinical care
Exclusion criteria
* Heart rate \> 110 beats per minute at the time of recruitment * Pregnant women * Prior chest surgery * Chest wall deformities or injuries (i.e. wounds, infections, etc) * Limited mobility precluding them from turning in bed independently * Speak a primary language other than English or Spanish * Vulnerable populations including: patients being evaluated for psychiatric crises, incarcerated individuals * Unwilling or unable to consent to study procedures
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Assessment of Global Left Ventricular Function | Up to 2 months from the completion of the study or when all expert cardiologists readers independently complete their assessments | A panel of cardiologists will access and determine via a majority vote if a study exam acquired by a nurses is of sufficient image quality to make a qualitative visual assessment of the Global Left Ventricular Function. |
| Assessment of Left Ventricular Size | Up to 2 months from the completion of the study or when all expert cardiologists readers independently complete their assessments | A panel of cardiologists will access and determine via a majority vote if a study exam acquired by a nurse is of sufficient image quality to make a qualitative visual assessment of the Left Ventricular Size. |
| Assessment of Non-Trivial Pericardial Effusion | Up to 2 months from the completion of the study or when all expert cardiologists readers independently complete their assessments | A panel of cardiologists will access and determine via a majority vote if a study exam acquired by a nurse is of sufficient image quality to make a qualitative visual assessment of Non-Trivial Pericardial Effusion. |
| Assessment of Right Ventricular Size | Up to 2 months from the completion of the study or when all expert cardiologists readers independently complete their assessments | A panel of cardiologists will access and determine via a majority vote if a study exam acquired by a nurse is of sufficient image quality to make a qualitative visual assessment of Right Ventricle Size. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Manual vs. KOSMOS-EF for Sonographer Scans | Up to 2 months from the completion of the study or when all expert cardiologists readers independently complete their assessments | Measurements are computed for A4C and A2C scans acquired by sonographers . We will compare KOSMOS-EF LVEF calculation to LVEF calculated by a panel of cardiologists via a majority vote. |
| Assessment of Left Atrial Size | Up to 2 months from the completion of the study or when all expert cardiologists readers independently complete their assessments | A panel of cardiologists will access and determine via a majority vote if a study exam acquired by a nurse is of sufficient image quality to make a qualitative visual assessment of Left Atrial Size. |
| Assessment of Automatic Structure Labelling | Up to 2 months from the completion of the study or when all expert cardiologists readers independently complete their assessments | A panel of cardiologists will access and determine via a majority vote if the frame-level false discovery rate (FDR) of automated cardiac structure labeling as determined by expert cardiologists for scans acquired by cardiac sonographers. |
Countries
United States
Outcome results
None listed