DEF-314 Better Accuracy in EF Assessment With DEFINITY

Inclusion Criteria:

1. Men and women ≥ 18 years of age in sinus rhythm

2. Able to communicate effectively with trial personnel

3. Has undergone a 2D Echo with or without contrast obtained within 6 months prior to
enrollment (Day 0)

4. Has provided signed informed consent after receiving a verbal and written explanation
of this clinical trial -

Exclusion Criteria:

1. Female subjects who are pregnant or lactating. All women of child bearing potential
[WOCBP] must have a negative urine pregnancy test at screening regardless of
contraceptive use history.

2. Women of child-bearing potential are excluded unless they:

1. are post-menopausal defined as amenorrhea ≥ 12 consecutive months, OR

2. have undergone successful surgical sterilization (hysterectomy, bilateral tubal
ligation or bilateral oophorectomy), OR

3. have been using an adequate and medically approved method of contraception to
avoid pregnancy for at least 1 month prior to DEFINITY® dose administration and
be willing to continue using the same method for the duration of the study.

3. Current illness or pathology that would prevent undergoing investigational product
administration due to a significant safety risk to the patient.

4. Uncontrolled arterial hypertension (defined as systolic blood pressure ≥ 200 mmHg or
diastolic blood pressure ≥ 110 mmHg) or arterial hypotension (defined as systolic
blood pressure ≤ 90 mmHg).

5. Unstable cardiovascular status defined as:

1. myocardial infarction or unstable angina pectoris within 6 months prior to
enrollment/DEFINITY® dose administration day

2. transient ischemic attack or stroke within 3 months prior to DEFINITY® dose
administration

3. symptomatic valvular heart disease or moderate to severe stenotic valvular heart
disease

4. clinically significant congenital heart defects

5. current uncontrolled cardiac arrhythmias causing symptoms or hemodynamic
compromise

6. acute pulmonary embolus or pulmonary infarction

7. acute myocarditis or pericarditis

8. acute aortic dissection

9. atrial fibrillation

6. any major surgery within 4 weeks prior to screening

7. known contraindications to undergoing CMR or claustrophobia

8. participation in any investigational drug, device, or placebo study within 30 days
prior to screening

9. known hypersensitivity to perflutren, or any of the excipients in DEFINITY®

10. prisoners or those who are subject to compulsory detention or involuntary
incarceration for treatment of either a psychiatric or physical illness (e.g.,
infectious disease) -