The present study is a preparatory step towards a multi-reader multi case (MRMC) randomized fully crossed study. As POCUS images are frequently not stored and not methodically acquired using a standardized image acquisition protocol this study will collect cardiac POCUS images in a prespecified manner.

Inclusion Criteria:

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

1. Provision of signed and dated informed consent form
2. Stated willingness to comply with all study procedures and availability for the duration of the study
3. Male or female, aged 21 or more

Exclusion Criteria:

An individual who meets any of the following criteria will be excluded from participation in this study:

1. Unstable clinical condition according to PI clinical judgment
2. Presence of prosthetic cardiac valve at any position and any type
3. Pregnancy or lactation
4. Contact isolation due to infections disease
5. Presence of left ventricular assist device (LVAD)
6. Know existence of congenital heart disease
7. Prosthetic cardiac valve, any
8. BMI 40 or greater
9. Clinical conditions that do not permit a POCUS study according to the judgment of the investigators or treating physicians
10. History of lung resection
11. Known poor cardiac US image quality based on prior echo exams
12. Mechanical ventilation, or other situations where the required ultrasound views cannot be adequately obtained
13. Clinical instability or critical subject condition or any condition the study PI judges that the POCUS exam could adversely affect the participant

Individuals under the care of the cardiology institutes of the participating sites, both inpatients and outpatient clinics and services.